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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType id="RelatedPartyTransactionsSiteLeaseAgreementsDetails" roleURI="http://www.westlake.com/role/RelatedPartyTransactionsSiteLeaseAgreementsDetails">
        <link:definition>2411409 - Disclosure - Related Party Transactions (Site Lease Agreements) (Details)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType id="RelatedPartyTransactionsTables" roleURI="http://www.westlake.com/role/RelatedPartyTransactionsTables">
        <link:definition>2311301 - Disclosure - Related Party Transactions (Tables)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType id="SupplementalInformation" roleURI="http://www.westlake.com/role/SupplementalInformation">
        <link:definition>2118100 - Disclosure - Supplemental Information</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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      <link:roleType id="SupplementalInformationDetails" roleURI="http://www.westlake.com/role/SupplementalInformationDetails">
        <link:definition>2418401 - Disclosure - Supplemental Information (Details)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
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  <xsd:element id="wlkp_AccruedMaintenanceCostsCurrent" name="AccruedMaintenanceCostsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_AccruedinterestincludedinreceivableunderIMA" name="AccruedinterestincludedinreceivableunderIMA" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="wlkp_AlternateBaseRateDomain" name="AlternateBaseRateDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_Buyerdeficiencyfee" name="Buyerdeficiencyfee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_CashDistributionTrancheOneMember" name="CashDistributionTrancheOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_CashDistributionTrancheThreeMember" name="CashDistributionTrancheThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_CashDistributionTrancheTwoMember" name="CashDistributionTrancheTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_CashProvidedbyUsedinInvestingActivitiesOther" name="CashProvidedbyUsedinInvestingActivitiesOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_CommonAndSubordinatedUnitsMember" name="CommonAndSubordinatedUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_CommonUnitsMember" name="CommonUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_DerivativeCommodityInstrumentsAbstract" name="DerivativeCommodityInstrumentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_DistributionPerCommonUnitAbstract" name="DistributionPerCommonUnitAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_DocumentDocumentandEntityInformationAbstract" name="DocumentDocumentandEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_FeedstockPurchasedMember" name="FeedstockPurchasedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_IDRHoldersMember" name="IDRHoldersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_IncentiveDistributionMarginalPercentageInterestinDistributions" name="IncentiveDistributionMarginalPercentageInterestinDistributions" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_IncentiveDistributionRightsTargetDistributionPerUnitRequiringMarginalPercentageDistributiontoIDRHolders" name="IncentiveDistributionRightsTargetDistributionPerUnitRequiringMarginalPercentageDistributiontoIDRHolders" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_IncentiveDistributionSubsequentDistributionAmount" name="IncentiveDistributionSubsequentDistributionAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_IncreaseDecreaseInPrepaidExpensesAndOtherCurrentAssets" name="IncreaseDecreaseInPrepaidExpensesAndOtherCurrentAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_IncreaseDecreaseinCapitalExpenditureAccrual" name="IncreaseDecreaseinCapitalExpenditureAccrual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_InterestearnedrelatedtotheIMA" name="InterestearnedrelatedtotheIMA" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_InvestmentswithWestlakeundertheInvestmentManagementAgreement" name="InvestmentswithWestlakeundertheInvestmentManagementAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_LimitedLiabilityCompanyLLCorLimitedPartnershipLPMembersorLimitedPartnersAdditionalOwnershipInterest" name="LimitedLiabilityCompanyLLCorLimitedPartnershipLPMembersorLimitedPartnersAdditionalOwnershipInterest" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_MLPRevolverMember" name="MLPRevolverMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_MaturitiesofinvestmentswithWestlakeundertheInvestmentManagementAgreement" name="MaturitiesofinvestmentswithWestlakeundertheInvestmentManagementAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_NumberofProductionFacilities" name="NumberofProductionFacilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="wlkp_OpCoRevolverMember" name="OpCoRevolverMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_OtherAssetsLineItems" name="OtherAssetsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_OtherServiceChargesMember" name="OtherServiceChargesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_ParentCompanyAndSubsidiariesExcludingReportingEntityAndSubsidiariesMember" name="ParentCompanyAndSubsidiariesExcludingReportingEntityAndSubsidiariesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PartnersCapitalAccountUnitsSoldinPublicOfferingPriceperUnit" name="PartnersCapitalAccountUnitsSoldinPublicOfferingPriceperUnit" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PartnersCapitalAccountUnitsSoldtoRelatedParty" name="PartnersCapitalAccountUnitsSoldtoRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PartnersUnitsMaximumAggregateOfferingAmountATM" name="PartnersUnitsMaximumAggregateOfferingAmountATM" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_ReceivablesunderInvestmentManagementAgreementswithRelatedPartiesCurrent" name="ReceivablesunderInvestmentManagementAgreementswithRelatedPartiesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_RelatedPartyTransactionPurchasesFromRelatedPartyCapitalizedAsAssets" name="RelatedPartyTransactionPurchasesFromRelatedPartyCapitalizedAsAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_RelatedPartyTransactionsLongtermDebtTableTextBlock" name="RelatedPartyTransactionsLongtermDebtTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_RelatedPartyTransactionsLongtermDebtTextBlock" name="RelatedPartyTransactionsLongtermDebtTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_ScheduleOfAccountsAndFinancingReceivablesTableTextBlock" name="ScheduleOfAccountsAndFinancingReceivablesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_ScheduleOfOtherAssetsTable" name="ScheduleOfOtherAssetsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_ScheduleofDistributionsTableTextBlock" name="ScheduleofDistributionsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_SeniorUnsecuredRevolvingCreditFacilityMember" name="SeniorUnsecuredRevolvingCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_Siteleaseagreementnumber" name="Siteleaseagreementnumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_SiteleaseagreementsOpCoannualobligationtoWLK" name="SiteleaseagreementsOpCoannualobligationtoWLK" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_Siteleaseagreementsterminyears" name="Siteleaseagreementsterminyears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_TradeCustomerReceivableNetCurrent" name="TradeCustomerReceivableNetCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="wlkp_UnidentifiedThirdPartiesMember" name="UnidentifiedThirdPartiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_UnitHoldersMember" name="UnitHoldersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_WestlakeChemicalOpCoGPLLCMember" name="WestlakeChemicalOpCoGPLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_WestlakeChemicalOpCoLPMember" name="WestlakeChemicalOpCoLPMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
