<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019dfef8-416c-7c0a-b329-f15a4eef6946,g:3366b713-2333-40d7-ac53-e21127841889-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:ce="http://www.celanese.com/20260630" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.celanese.com/20260630">
  <xs:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/currency/2025" schemaLocation="https://xbrl.sec.gov/currency/2025/currency-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ce-20260630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ce-20260630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ce-20260630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ce-20260630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://www.celanese.com/role/Cover">
        <link:definition>0000001 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedInterimConsolidatedStatementofOperations" roleURI="http://www.celanese.com/role/UnauditedInterimConsolidatedStatementofOperations">
        <link:definition>9952151 - Statement - Unaudited Interim Consolidated Statement of Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedInterimConsolidatedStatementsofComprehensiveIncomeLoss" roleURI="http://www.celanese.com/role/UnauditedInterimConsolidatedStatementsofComprehensiveIncomeLoss">
        <link:definition>9952152 - Statement - Unaudited Interim Consolidated Statements of Comprehensive Income (Loss)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedConsolidatedBalanceSheets" roleURI="http://www.celanese.com/role/UnauditedConsolidatedBalanceSheets">
        <link:definition>9952153 - Statement - Unaudited Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedConsolidatedBalanceSheetsParenthetical" roleURI="http://www.celanese.com/role/UnauditedConsolidatedBalanceSheetsParenthetical">
        <link:definition>9952154 - Statement - Unaudited Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedInterimConsolidatedStatementEquity" roleURI="http://www.celanese.com/role/UnauditedInterimConsolidatedStatementEquity">
        <link:definition>9952155 - Statement - Unaudited Interim Consolidated Statement Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedInterimConsolidatedStatementsofCashFlows" roleURI="http://www.celanese.com/role/UnauditedInterimConsolidatedStatementsofCashFlows">
        <link:definition>9952156 - Statement - Unaudited Interim Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DescriptionoftheCompanyandBasisofPresentation" roleURI="http://www.celanese.com/role/DescriptionoftheCompanyandBasisofPresentation">
        <link:definition>9952157 - Disclosure - Description of the Company and Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RecentAccountingPronouncements" roleURI="http://www.celanese.com/role/RecentAccountingPronouncements">
        <link:definition>9952158 - Disclosure - Recent Accounting Pronouncements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionsDispositionsandPlantClosures" roleURI="http://www.celanese.com/role/AcquisitionsDispositionsandPlantClosures">
        <link:definition>9952159 - Disclosure - Acquisitions, Dispositions and Plant Closures</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Inventories" roleURI="http://www.celanese.com/role/Inventories">
        <link:definition>9952160 - Disclosure - Inventories</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsnet" roleURI="http://www.celanese.com/role/GoodwillandIntangibleAssetsnet">
        <link:definition>9952161 - Disclosure - Goodwill and Intangible Assets, net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CurrentOtherLiabilities" roleURI="http://www.celanese.com/role/CurrentOtherLiabilities">
        <link:definition>9952162 - Disclosure - Current Other Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Debt" roleURI="http://www.celanese.com/role/Debt">
        <link:definition>9952163 - Disclosure - Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BenefitObligations" roleURI="http://www.celanese.com/role/BenefitObligations">
        <link:definition>9952164 - Disclosure - Benefit Obligations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Environmental" roleURI="http://www.celanese.com/role/Environmental">
        <link:definition>9952165 - Disclosure - Environmental</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquity" roleURI="http://www.celanese.com/role/StockholdersEquity">
        <link:definition>9952166 - Disclosure - Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.celanese.com/role/IncomeTaxes">
        <link:definition>9952167 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstruments" roleURI="http://www.celanese.com/role/DerivativeFinancialInstruments">
        <link:definition>9952168 - Disclosure - Derivative Financial Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://www.celanese.com/role/FairValueMeasurements">
        <link:definition>9952169 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingencies" roleURI="http://www.celanese.com/role/CommitmentsandContingencies">
        <link:definition>9952170 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformation" roleURI="http://www.celanese.com/role/SegmentInformation">
        <link:definition>9952171 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognition" roleURI="http://www.celanese.com/role/RevenueRecognition">
        <link:definition>9952172 - Disclosure - Revenue Recognition</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsLossPerShare" roleURI="http://www.celanese.com/role/EarningsLossPerShare">
        <link:definition>9952173 - Disclosure - Earnings (Loss) Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherChargesGainsNet" roleURI="http://www.celanese.com/role/OtherChargesGainsNet">
        <link:definition>9952174 - Disclosure - Other (Charges) Gains, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEvents" roleURI="http://www.celanese.com/role/SubsequentEvents">
        <link:definition>9952175 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RecentAccountingPronouncementsPolicies" roleURI="http://www.celanese.com/role/RecentAccountingPronouncementsPolicies">
        <link:definition>9955511 - Disclosure - Recent Accounting Pronouncements (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionsDispositionsandPlantClosuresPlantClosuresTables" roleURI="http://www.celanese.com/role/AcquisitionsDispositionsandPlantClosuresPlantClosuresTables">
        <link:definition>9955512 - Disclosure - Acquisitions, Dispositions and Plant Closures Plant Closures (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventoriesTables" roleURI="http://www.celanese.com/role/InventoriesTables">
        <link:definition>9955513 - Disclosure - Inventories (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsNetTables" roleURI="http://www.celanese.com/role/GoodwillandIntangibleAssetsNetTables">
        <link:definition>9955514 - Disclosure - Goodwill and Intangible Assets, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CurrentOtherLiabilitiesTables" roleURI="http://www.celanese.com/role/CurrentOtherLiabilitiesTables">
        <link:definition>9955515 - Disclosure - Current Other Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtTables" roleURI="http://www.celanese.com/role/DebtTables">
        <link:definition>9955516 - Disclosure - Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BenefitObligationsTables" roleURI="http://www.celanese.com/role/BenefitObligationsTables">
        <link:definition>9955517 - Disclosure - Benefit Obligations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EnvironmentalTables" roleURI="http://www.celanese.com/role/EnvironmentalTables">
        <link:definition>9955518 - Disclosure - Environmental (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityTables" roleURI="http://www.celanese.com/role/StockholdersEquityTables">
        <link:definition>9955519 - Disclosure - Stockholders' Equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://www.celanese.com/role/IncomeTaxesTables">
        <link:definition>9955520 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsTables" roleURI="http://www.celanese.com/role/DerivativeFinancialInstrumentsTables">
        <link:definition>9955521 - Disclosure - Derivative Financial Instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://www.celanese.com/role/FairValueMeasurementsTables">
        <link:definition>9955522 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesTables" roleURI="http://www.celanese.com/role/CommitmentsandContingenciesTables">
        <link:definition>9955523 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationTables" roleURI="http://www.celanese.com/role/SegmentInformationTables">
        <link:definition>9955524 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionTables" roleURI="http://www.celanese.com/role/RevenueRecognitionTables">
        <link:definition>9955525 - Disclosure - Revenue Recognition (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsLossPerShareTables" roleURI="http://www.celanese.com/role/EarningsLossPerShareTables">
        <link:definition>9955526 - Disclosure - Earnings (Loss) Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherChargesGainsNetTables" roleURI="http://www.celanese.com/role/OtherChargesGainsNetTables">
        <link:definition>9955527 - Disclosure - Other (Charges) Gains, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DescriptionoftheCompanyandBasisofPresentationNarrativeDetails" roleURI="http://www.celanese.com/role/DescriptionoftheCompanyandBasisofPresentationNarrativeDetails">
        <link:definition>9955528 - Disclosure - Description of the Company and Basis of Presentation (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionsDispositionsandPlantClosuresPlantClosuresNarrativeDetails" roleURI="http://www.celanese.com/role/AcquisitionsDispositionsandPlantClosuresPlantClosuresNarrativeDetails">
        <link:definition>9955529 - Disclosure - Acquisitions, Dispositions and Plant Closures Plant Closures - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionsDispositionsandPlantClosuresPlantClosuresScheduleofExitandShutdownCostRelatedtoClosureDetails" roleURI="http://www.celanese.com/role/AcquisitionsDispositionsandPlantClosuresPlantClosuresScheduleofExitandShutdownCostRelatedtoClosureDetails">
        <link:definition>9955530 - Disclosure - Acquisitions, Dispositions and Plant Closures Plant Closures - Schedule of Exit and Shutdown Cost Related to Closure (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventoriesScheduleofInventoriesDetails" roleURI="http://www.celanese.com/role/InventoriesScheduleofInventoriesDetails">
        <link:definition>9955531 - Disclosure - Inventories - Schedule of Inventories (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsNetScheduleofGoodwillDetails" roleURI="http://www.celanese.com/role/GoodwillandIntangibleAssetsNetScheduleofGoodwillDetails">
        <link:definition>9955532 - Disclosure - Goodwill and Intangible Assets, Net - Schedule of Goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsDetails" roleURI="http://www.celanese.com/role/GoodwillandIntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsDetails">
        <link:definition>9955533 - Disclosure - Goodwill and Intangible Assets, Net - Schedule of Finite-Lived Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsNetNarrativeDetails" roleURI="http://www.celanese.com/role/GoodwillandIntangibleAssetsNetNarrativeDetails">
        <link:definition>9955534 - Disclosure - Goodwill and Intangible Assets, Net - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsNetScheduleofIndefiniteLivedIntangibleAssetsDetails" roleURI="http://www.celanese.com/role/GoodwillandIntangibleAssetsNetScheduleofIndefiniteLivedIntangibleAssetsDetails">
        <link:definition>9955535 - Disclosure - Goodwill and Intangible Assets, Net - Schedule of Indefinite-Lived Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillandIntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseDetails" roleURI="http://www.celanese.com/role/GoodwillandIntangibleAssetsNetScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseDetails">
        <link:definition>9955536 - Disclosure - Goodwill and Intangible Assets, Net - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CurrentOtherLiabilitiesDetails" roleURI="http://www.celanese.com/role/CurrentOtherLiabilitiesDetails">
        <link:definition>9955537 - Disclosure - Current Other Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleofShorttermDebtDetails" roleURI="http://www.celanese.com/role/DebtScheduleofShorttermDebtDetails">
        <link:definition>9955538 - Disclosure - Debt - Schedule of Short-term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleofLongtermDebtDetails" roleURI="http://www.celanese.com/role/DebtScheduleofLongtermDebtDetails">
        <link:definition>9955539 - Disclosure - Debt - Schedule of Long-term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtNarrativeDetails" roleURI="http://www.celanese.com/role/DebtNarrativeDetails">
        <link:definition>9955540 - Disclosure - Debt - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleofChinaCreditFacilitiesDetails" roleURI="http://www.celanese.com/role/DebtScheduleofChinaCreditFacilitiesDetails">
        <link:definition>9955541 - Disclosure - Debt - Schedule of China Credit Facilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtScheduleofRevolvingCreditFacilityDetails" roleURI="http://www.celanese.com/role/DebtScheduleofRevolvingCreditFacilityDetails">
        <link:definition>9955542 - Disclosure - Debt - Schedule of Revolving Credit Facility (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BenefitObligationsScheduleofNetPeriodicBenefitCostsRecognizedDetails" roleURI="http://www.celanese.com/role/BenefitObligationsScheduleofNetPeriodicBenefitCostsRecognizedDetails">
        <link:definition>9955543 - Disclosure - Benefit Obligations - Schedule of Net Periodic Benefit Costs Recognized (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BenefitObligationsScheduleofCompanyCommitmentstoFundBenefitObligationsDetails" roleURI="http://www.celanese.com/role/BenefitObligationsScheduleofCompanyCommitmentstoFundBenefitObligationsDetails">
        <link:definition>9955544 - Disclosure - Benefit Obligations - Schedule of Company Commitments to Fund Benefit Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BenefitObligationsScheduleofDefinedBenefitPlansDisclosuresDetails" roleURI="http://www.celanese.com/role/BenefitObligationsScheduleofDefinedBenefitPlansDisclosuresDetails">
        <link:definition>9955545 - Disclosure - Benefit Obligations - Schedule of Defined Benefit Plans Disclosures (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EnvironmentalScheduleofEnvironmentalRemediationReservesDetails" roleURI="http://www.celanese.com/role/EnvironmentalScheduleofEnvironmentalRemediationReservesDetails">
        <link:definition>9955546 - Disclosure - Environmental (Schedule of Environmental Remediation Reserves) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EnvironmentalUSSuperfundSitesNarrativeDetails" roleURI="http://www.celanese.com/role/EnvironmentalUSSuperfundSitesNarrativeDetails">
        <link:definition>9955547 - Disclosure - Environmental - US Superfund Sites Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityNarrativeDetails" roleURI="http://www.celanese.com/role/StockholdersEquityNarrativeDetails">
        <link:definition>9955548 - Disclosure - Stockholders' Equity - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityScheduleofTreasuryStockDetails" roleURI="http://www.celanese.com/role/StockholdersEquityScheduleofTreasuryStockDetails">
        <link:definition>9955549 - Disclosure - Stockholders' Equity - Schedule of Treasury Stock (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityScheduleofComponentsofOtherComprehensiveIncomeLossNetDetails" roleURI="http://www.celanese.com/role/StockholdersEquityScheduleofComponentsofOtherComprehensiveIncomeLossNetDetails">
        <link:definition>9955550 - Disclosure - Stockholders' Equity - Schedule of Components of Other Comprehensive Income (Loss), Net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityScheduleofAdjustmentstoAccumulatedOtherComprehensiveIncomeLossNetDetails" roleURI="http://www.celanese.com/role/StockholdersEquityScheduleofAdjustmentstoAccumulatedOtherComprehensiveIncomeLossNetDetails">
        <link:definition>9955551 - Disclosure - Stockholders' Equity - Schedule of Adjustments to Accumulated Other Comprehensive Income (Loss), Net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesScheduleofEffectiveTaxRateDetails" roleURI="http://www.celanese.com/role/IncomeTaxesScheduleofEffectiveTaxRateDetails">
        <link:definition>9955552 - Disclosure - Income Taxes - Schedule of Effective Tax Rate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsScheduleofChangesinFairValueofDerivativesDetails" roleURI="http://www.celanese.com/role/DerivativeFinancialInstrumentsScheduleofChangesinFairValueofDerivativesDetails">
        <link:definition>9955553 - Disclosure - Derivative Financial Instruments (Schedule of Changes in Fair Value of Derivatives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsScheduleofOffsettingAssetsDetails" roleURI="http://www.celanese.com/role/DerivativeFinancialInstrumentsScheduleofOffsettingAssetsDetails">
        <link:definition>9955554 - Disclosure - Derivative Financial Instruments (Schedule of Offsetting Assets) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsScheduleofOffsettingLiabilitiesDetails" roleURI="http://www.celanese.com/role/DerivativeFinancialInstrumentsScheduleofOffsettingLiabilitiesDetails">
        <link:definition>9955555 - Disclosure - Derivative Financial Instruments (Schedule of Offsetting Liabilities) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsScheduleofAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails" roleURI="http://www.celanese.com/role/FairValueMeasurementsScheduleofAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails">
        <link:definition>9955556 - Disclosure - Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsScheduleofCarryingValuesandFairValuesofFinancialInstrumentsDetails" roleURI="http://www.celanese.com/role/FairValueMeasurementsScheduleofCarryingValuesandFairValuesofFinancialInstrumentsDetails">
        <link:definition>9955557 - Disclosure - Fair Value Measurements - Schedule of Carrying Values and Fair Values of Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesNarrativeDetails" roleURI="http://www.celanese.com/role/CommitmentsandContingenciesNarrativeDetails">
        <link:definition>9955558 - Disclosure - Commitments and Contingencies - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesUnrecordedUnconditionalPurchaseObligationsDisclosureDetails" roleURI="http://www.celanese.com/role/CommitmentsandContingenciesUnrecordedUnconditionalPurchaseObligationsDisclosureDetails">
        <link:definition>9955559 - Disclosure - Commitments and Contingencies (Unrecorded Unconditional Purchase Obligations Disclosure) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationNarrativeDetails" roleURI="http://www.celanese.com/role/SegmentInformationNarrativeDetails">
        <link:definition>9955560 - Disclosure - Segment Information - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationScheduleofBusinessSegmentsDetails" roleURI="http://www.celanese.com/role/SegmentInformationScheduleofBusinessSegmentsDetails">
        <link:definition>9955561 - Disclosure - Segment Information - Schedule of Business Segments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionRemainingPerformanceObligationsDetails" roleURI="http://www.celanese.com/role/RevenueRecognitionRemainingPerformanceObligationsDetails">
        <link:definition>9955562 - Disclosure - Revenue Recognition - Remaining Performance Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionRemainingPerformanceObligationsDetails_1" roleURI="http://www.celanese.com/role/RevenueRecognitionRemainingPerformanceObligationsDetails_1">
        <link:definition>9955562 - Disclosure - Revenue Recognition - Remaining Performance Obligations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionDisaggregationofnetsalesDetails" roleURI="http://www.celanese.com/role/RevenueRecognitionDisaggregationofnetsalesDetails">
        <link:definition>9955563 - Disclosure - Revenue Recognition - Disaggregation of net sales (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionDisaggregationofnetsalesDetails_1" roleURI="http://www.celanese.com/role/RevenueRecognitionDisaggregationofnetsalesDetails_1">
        <link:definition>9955563 - Disclosure - Revenue Recognition - Disaggregation of net sales (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsLossPerShareScheduleofEarningsLossPerShareDetails" roleURI="http://www.celanese.com/role/EarningsLossPerShareScheduleofEarningsLossPerShareDetails">
        <link:definition>9955564 - Disclosure - Earnings (Loss) Per Share - Schedule of Earnings (Loss) Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsLossPerShareNarrativeDetails" roleURI="http://www.celanese.com/role/EarningsLossPerShareNarrativeDetails">
        <link:definition>9955565 - Disclosure - Earnings (Loss) Per Share - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherChargesGainsNetScheduleofOtherChargesGainsNetDetails" roleURI="http://www.celanese.com/role/OtherChargesGainsNetScheduleofOtherChargesGainsNetDetails">
        <link:definition>9955566 - Disclosure - Other (Charges) Gains, Net - Schedule of Other (Charges) Gains, Net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherChargesGainsNetScheduleofRestructuringReservebyTypeofCostDetails" roleURI="http://www.celanese.com/role/OtherChargesGainsNetScheduleofRestructuringReservebyTypeofCostDetails">
        <link:definition>9955567 - Disclosure - Other (Charges) Gains, Net - Schedule of Restructuring Reserve by Type of Cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEventsNarrativeDetails" roleURI="http://www.celanese.com/role/SubsequentEventsNarrativeDetails">
        <link:definition>9955568 - Disclosure - Subsequent Events - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="ce_EURSeniorUnsecuredNotesDue2026Member" abstract="true" name="EURSeniorUnsecuredNotesDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_EURSeniorUnsecuredNotesDue2027Member" abstract="true" name="EURSeniorUnsecuredNotesDue2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_EURSeniorUnsecuredNotesDue2028Member" abstract="true" name="EURSeniorUnsecuredNotesDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_EURSeniorUnsecuredNotesDue2029Member" abstract="true" name="EURSeniorUnsecuredNotesDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_EURSeniorUnsecuredNotesDue2031Member" abstract="true" name="EURSeniorUnsecuredNotesDue2031Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_Nonoperatingpensionandotherpostretirementemployeebenefitexpenseincome" abstract="false" name="Nonoperatingpensionandotherpostretirementemployeebenefitexpenseincome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_PaymentsForProceedsFromSaleOfBusinessAndAssetsNet" abstract="false" name="PaymentsForProceedsFromSaleOfBusinessAndAssetsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_RecentAccountingPronouncementsAbstract" abstract="true" name="RecentAccountingPronouncementsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ce_AcquisitionsDispositionsandPlantClosuresAbstract" abstract="true" name="AcquisitionsDispositionsandPlantClosuresAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ce_AcquisitionsDispositionsandPlantClosuresTextBlock" abstract="false" name="AcquisitionsDispositionsandPlantClosuresTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ce_OtherChargesGainsNetTextBlock" abstract="false" name="OtherChargesGainsNetTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ce_PlantClosuresAbstract" abstract="true" name="PlantClosuresAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="ce_ScheduleOfCompanyCommitmentsToFundBenefitObligationsTableTextBlock" abstract="false" name="ScheduleOfCompanyCommitmentsToFundBenefitObligationsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ce_ScheduleOfOtherChargesGainsNetTableTextBlock" abstract="false" name="ScheduleOfOtherChargesGainsNetTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="ce_ConsolidatedVenturesMember" abstract="true" name="ConsolidatedVenturesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_MicromaxMember" abstract="true" name="MicromaxMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_LanakenBelgiumMember" abstract="true" name="LanakenBelgiumMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_AcetylChainMember" abstract="true" name="AcetylChainMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_PlantShutdownCosts" abstract="false" name="PlantShutdownCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_EngineeredMaterialsMember" abstract="true" name="EngineeredMaterialsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_EquityMethodInvestmentLiabilityCurrent" abstract="false" name="EquityMethodInvestmentLiabilityCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_USDSeniorUnsecuredNotesDue2026Member" abstract="true" name="USDSeniorUnsecuredNotesDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USDSeniorUnsecuredNotesDue2027Member" abstract="true" name="USDSeniorUnsecuredNotesDue2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USDSeniorUnsecuredNotesDue2028Member" abstract="true" name="USDSeniorUnsecuredNotesDue2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USDSeniorUnsecuredNotesDue2029Member" abstract="true" name="USDSeniorUnsecuredNotesDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USD700MSeniorUnsecuredNotesDue2030Member" abstract="true" name="USD700MSeniorUnsecuredNotesDue2030Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USDSeniorUnsecuredNotesDue2030Member" abstract="true" name="USDSeniorUnsecuredNotesDue2030Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USDSeniorUnsecuredNotesDue2031Member" abstract="true" name="USDSeniorUnsecuredNotesDue2031Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USDSeniorUnsecuredNotesDue2032Member" abstract="true" name="USDSeniorUnsecuredNotesDue2032Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USDSeniorUnsecuredNotesDue2033Member" abstract="true" name="USDSeniorUnsecuredNotesDue2033Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USD1.1BSeniorUnsecuredNotesDue2033Member" abstract="true" name="USD1.1BSeniorUnsecuredNotesDue2033Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_USDSeniorUnsecuredNotesDue2034Member" abstract="true" name="USDSeniorUnsecuredNotesDue2034Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_PollutionControlAndIndustrialRevenueBondsMember" abstract="true" name="PollutionControlAndIndustrialRevenueBondsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_VariousSeniorNotesMember" abstract="true" name="VariousSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_March2022U.S.TermLoanCreditAgreementMember" abstract="true" name="March2022U.S.TermLoanCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_November2024USTermLoanCreditAgreementMember" abstract="true" name="November2024USTermLoanCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCRevolvingCreditAgreementMember" abstract="true" name="CNCCRevolvingCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCCNY950MTermLoanAgreementMember" abstract="true" name="CNCCCNY950MTermLoanAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_March2025OfferingOfUSDSeniorUnsecuredNotesMember" abstract="true" name="March2025OfferingOfUSDSeniorUnsecuredNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_March2025OfferingOfSeniorUnsecuredNotesMember" abstract="true" name="March2025OfferingOfSeniorUnsecuredNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_March2025TenderOffersMember" abstract="true" name="March2025TenderOffersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_December2025OfferingOfSeniorUnsecuredNotesMember" abstract="true" name="December2025OfferingOfSeniorUnsecuredNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_December2025TenderOffersMember" abstract="true" name="December2025TenderOffersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_EuropeFactoringAgreementsMember" abstract="true" name="EuropeFactoringAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_JapanFactoringAgreementsMember" abstract="true" name="JapanFactoringAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_SingaporeFactoringAgreementsMember" abstract="true" name="SingaporeFactoringAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_ChinaFactoringAgreementsMember" abstract="true" name="ChinaFactoringAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_ChinaEuropeJapanAndSingaporeFactoringAgreementsMember" abstract="true" name="ChinaEuropeJapanAndSingaporeFactoringAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_MasterDiscountingAgreementMember" abstract="true" name="MasterDiscountingAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_ChinaRevolvingCreditFacilitiesMember" abstract="true" name="ChinaRevolvingCreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_ChinaCreditFacilitiesMember" abstract="true" name="ChinaCreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_AmendedRestatedReceivablePurchasingFacilityMember" abstract="true" name="AmendedRestatedReceivablePurchasingFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_VariableInterbankInterestRateMember" abstract="true" name="VariableInterbankInterestRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_PercentageOfFairValueOfSalesReceivables" abstract="false" name="PercentageOfFairValueOfSalesReceivables" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ce_ProceedsCollectedOnAccountsReceivableSoldUnderFactoringFacilities" abstract="false" name="ProceedsCollectedOnAccountsReceivableSoldUnderFactoringFacilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_TradeReceivablesPledgedAsCollateral" abstract="false" name="TradeReceivablesPledgedAsCollateral" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_TransferOfFinancialAssetsTreatedAsSalesNonRecourseOrLimitedRecourseBasisAccountsReceivablePercentage" abstract="false" name="TransferOfFinancialAssetsTreatedAsSalesNonRecourseOrLimitedRecourseBasisAccountsReceivablePercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ce_CSITRevolvingCreditAgreementMember" abstract="true" name="CSITRevolvingCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCWorkingCapitalLoanAgreementDueDecember252026Member" abstract="true" name="CNCCWorkingCapitalLoanAgreementDueDecember252026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CSITMarch2026CNY100MWorkingCapitalLoanAgreementMember" abstract="true" name="CSITMarch2026CNY100MWorkingCapitalLoanAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CSITMay2026CNY100MWorkingCapitalLoanAgreementMember" abstract="true" name="CSITMay2026CNY100MWorkingCapitalLoanAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCWorkingCapitalLoanAgreementDueJune172027Member" abstract="true" name="CNCCWorkingCapitalLoanAgreementDueJune172027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCWorkingCapitalLoanAgreementDueJune282027Member" abstract="true" name="CNCCWorkingCapitalLoanAgreementDueJune282027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCWorkingCapitalLoanAgreementDueDecember212027Member" abstract="true" name="CNCCWorkingCapitalLoanAgreementDueDecember212027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCWorkingCapitalLoanAgreementDueMarch62028Member" abstract="true" name="CNCCWorkingCapitalLoanAgreementDueMarch62028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCWorkingCapitalLoanAgreementDueJune92028Member" abstract="true" name="CNCCWorkingCapitalLoanAgreementDueJune92028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCWorkingCapitalLoanAgreementDueJuly32028Member" abstract="true" name="CNCCWorkingCapitalLoanAgreementDueJuly32028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCWorkingCapitalLoanAgreementDueOctober202028Member" abstract="true" name="CNCCWorkingCapitalLoanAgreementDueOctober202028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNCCTermLoanAgreementDueMarch112031Member" abstract="true" name="CNCCTermLoanAgreementDueMarch112031Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_DemergerObligations" abstract="false" name="DemergerObligations" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_DivestitureObligations" abstract="false" name="DivestitureObligations" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_ActiveSites" abstract="false" name="ActiveSites" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_UsSuperfundSites" abstract="false" name="UsSuperfundSites" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_OtherEnvironmentalRemediationReserves" abstract="false" name="OtherEnvironmentalRemediationReserves" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_PassaicRiverNewJerseyMember" abstract="true" name="PassaicRiverNewJerseyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_NumberOfPartiesIncludedInUsepaOrder" abstract="false" name="NumberOfPartiesIncludedInUsepaOrder" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ce_Environmental" abstract="false" name="Environmental" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_EnvironmentalLiabilityPercentage" abstract="false" name="EnvironmentalLiabilityPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ce_CommonStockDividendsDecreasePercentage" abstract="false" name="CommonStockDividendsDecreasePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ce_ForeignCurrencyDenominatedDebtMember" abstract="true" name="ForeignCurrencyDenominatedDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_JPYDenominatedBorrowingsMember" abstract="true" name="JPYDenominatedBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_CNYDenominatedBorrowingsMember" abstract="true" name="CNYDenominatedBorrowingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_GainLossOnNonDerivativeUsedInNetInvestmentHedge" abstract="false" name="GainLossOnNonDerivativeUsedInNetInvestmentHedge" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_GainLossOnNonDerivativesandDerivativesUsedInNetInvestmentHedge" abstract="false" name="GainLossOnNonDerivativesandDerivativesUsedInNetInvestmentHedge" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_IndemnificationAgreementsHoechstMember" abstract="true" name="IndemnificationAgreementsHoechstMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_DivestitureAgreementsMember" abstract="true" name="DivestitureAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="ce_NumberOfDivestitureAgreements" abstract="false" name="NumberOfDivestitureAgreements" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="ce_IndemnificationFloorAmount" abstract="false" name="IndemnificationFloorAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_IndemnificationCeilingAmount" abstract="false" name="IndemnificationCeilingAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_IndemnificationPercentageExceedingCeilingAmount" abstract="false" name="IndemnificationPercentageExceedingCeilingAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ce_IndemnificationPercentageOther" abstract="false" name="IndemnificationPercentageOther" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="ce_UnrecordedUnconditionalPurchaseObligationToBePaidAfterYearFour" abstract="false" name="UnrecordedUnconditionalPurchaseObligationToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_IncreaseDecreaseOfAccruedCapitalExpenditures" abstract="false" name="IncreaseDecreaseOfAccruedCapitalExpenditures" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_OneTimeTerminationBenefits" abstract="false" name="OneTimeTerminationBenefits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_PlantOfficeClosures" abstract="false" name="PlantOfficeClosures" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="ce_EuropeanReceivablesPurchaseAndFinancingFacilityMember" abstract="true" name="EuropeanReceivablesPurchaseAndFinancingFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
