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  <xsd:element abstract="true" id="wlkp_FirmCommitmentDerivativeItemsDesignatedAsHedgesMember" name="FirmCommitmentDerivativeItemsDesignatedAsHedgesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_GoZoneSixAndOneHalfPercentSeniorNotesDueTwentyTwentyNineMember" name="GoZoneSixAndOneHalfPercentSeniorNotesDueTwentyTwentyNineMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_GoZoneSixAndThreeQuartersPercentSeniorNotesDueTwentyThirtyTwoMember" name="GoZoneSixAndThreeQuartersPercentSeniorNotesDueTwentyThirtyTwoMember" 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_IncentiveDistributionQuarterlyDistributionPerUnitDistributionThreshold" name="IncentiveDistributionQuarterlyDistributionPerUnitDistributionThreshold" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_IncentiveDistributionRightsMinimumQuarterlyDistributionPerUnit" name="IncentiveDistributionRightsMinimumQuarterlyDistributionPerUnit" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_IncentiveDistributionRightsThresholdToPayoutAdditionalDistributions" name="IncentiveDistributionRightsThresholdToPayoutAdditionalDistributions" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_IncomeLossFromContinuingOperationsBeforeIncomeTaxes" name="IncomeLossFromContinuingOperationsBeforeIncomeTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" 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_IntangibleAssetsAccumulatedAmortization" name="IntangibleAssetsAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_IntangibleAssetsGrossIncludingGoodwill" name="IntangibleAssetsGrossIncludingGoodwill" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_IntercompanyDebt" name="IntercompanyDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="wlkp_IntercompanyDebtMember" name="IntercompanyDebtMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_InterestIncurredAddedtoDebtOutstanding" name="InterestIncurredAddedtoDebtOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_InterestPayableNoncurrent" name="InterestPayableNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_InventoryExchangePolicyTextBlock" name="InventoryExchangePolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_InventorySupplies" name="InventorySupplies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_LesseeLeasingArrangementsOperatingLeasesNumber" name="LesseeLeasingArrangementsOperatingLeasesNumber" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="wlkp_LimitedLiabilityCompanyLLCorLimitedPartnershipLPMembersorLimitedPartnersAdditionalOwnershipInterest" name="LimitedLiabilityCompanyLLCorLimitedPartnershipLPMembersorLimitedPartnersAdditionalOwnershipInterest" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_LongtermPurchaseCommitmentExpectedPercentageOfProductionToBeSold" name="LongtermPurchaseCommitmentExpectedPercentageOfProductionToBeSold" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_LongtermPurchaseCommitmentFixedMargin" name="LongtermPurchaseCommitmentFixedMargin" nillable="true" substitutionGroup="xbrli:item" type="us-types:perUnitItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_LongtermPurchaseCommitmentMaximumVolumeRequired" name="LongtermPurchaseCommitmentMaximumVolumeRequired" nillable="true" substitutionGroup="xbrli:item" type="num:massItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_LongtermPurchaseCommitmentMinimumPercentageRequired" name="LongtermPurchaseCommitmentMinimumPercentageRequired" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_LongtermPurchaseCommitmentOptionToPurchaseExcessProductionPercentage" name="LongtermPurchaseCommitmentOptionToPurchaseExcessProductionPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_LongtermPurchaseCommitmentPeriod" name="LongtermPurchaseCommitmentPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_LongtermPurchaseCommitmentRenewalTerm" name="LongtermPurchaseCommitmentRenewalTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_LongtermPurchaseCommitmentTermsofFeeNumberOfYearsUsedToCalculateAverageExpenses" name="LongtermPurchaseCommitmentTermsofFeeNumberOfYearsUsedToCalculateAverageExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_NetInvestmentInPartnership" name="NetInvestmentInPartnership" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_NoncontrollingInterestDecreaseDueToExcessCashPaidOverCarryingValue" name="NoncontrollingInterestDecreaseDueToExcessCashPaidOverCarryingValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_NoncontrollingInterestDecreasefromDistributionstoNoncontrollingInterestHoldersReimbursement" name="NoncontrollingInterestDecreasefromDistributionstoNoncontrollingInterestHoldersReimbursement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_NoncurrentAssetsOtherGross" name="NoncurrentAssetsOtherGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_NoncurrentAssetsOtherNet" name="NoncurrentAssetsOtherNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_NumberofProductionFacilities" name="NumberofProductionFacilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="wlkp_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" name="OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_OrganizationConsolidationAndPresentationOfFinancialStatementsTable" name="OrganizationConsolidationAndPresentationOfFinancialStatementsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_OtherAmortizableAssetsMember" name="OtherAmortizableAssetsMember" 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 id="wlkp_OtherAssetsNoncurrentAccumulatedAmortization" name="OtherAssetsNoncurrentAccumulatedAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="wlkp_OtherAssetsNoncurrentAxis" name="OtherAssetsNoncurrentAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_OtherAssetsNoncurrentByTypeDomain" name="OtherAssetsNoncurrentByTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_OtherAssetsNoncurrentGross" name="OtherAssetsNoncurrentGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_OtherAssetsPolicyTextBlock" name="OtherAssetsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_OtherAssetsUsefulLife" name="OtherAssetsUsefulLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_OtherReceivablesCurrent" name="OtherReceivablesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="wlkp_OverAllotmentOptionMember" name="OverAllotmentOptionMember" 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_PartnersCapitalAllocationOfNetInvestmentToUnitholders" name="PartnersCapitalAllocationOfNetInvestmentToUnitholders" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PartnersCapitalPredecessorNetLiabilitiesNotAssumedBySubsidiary" name="PartnersCapitalPredecessorNetLiabilitiesNotAssumedBySubsidiary" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PaymentsofUnitIssuanceCosts" name="PaymentsofUnitIssuanceCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PercentagePaidOfMinimumQuarterlyDistributionEndingSubordinationPeriod" name="PercentagePaidOfMinimumQuarterlyDistributionEndingSubordinationPeriod" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_PipelineNote2006Member" name="PipelineNote2006Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_PlantAndEquipmentMember" name="PlantAndEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PlantAndEquipmentPlannedMajorMaintenanceActivitiesAmortizationPeriodMaximum" name="PlantAndEquipmentPlannedMajorMaintenanceActivitiesAmortizationPeriodMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PlantAndEquipmentPlannedMajorMaintenanceActivitiesAmortizationPeriodMinimum" name="PlantAndEquipmentPlannedMajorMaintenanceActivitiesAmortizationPeriodMinimum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_PolyoneMember" name="PolyoneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_PreformationCapitalExpenditureMember" name="PreformationCapitalExpenditureMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PreformationCapitalExpenditures" name="PreformationCapitalExpenditures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_PromissoryNotes2013Member" name="PromissoryNotes2013Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_PropertyPlantAndEquipmentGrossExcludingConstructionInProgress" name="PropertyPlantAndEquipmentGrossExcludingConstructionInProgress" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_PropertyPlantAndEquipmentNetExcludingConstructionInProgress" name="PropertyPlantAndEquipmentNetExcludingConstructionInProgress" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_RelatedPartiesAmountInCostOfSalesFeedstockPurchased" name="RelatedPartiesAmountInCostOfSalesFeedstockPurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="wlkp_RelatedPartyTransactionCounterpartyDefaultPeriodOfDefaultAllowingTerminationOfAgreement" name="RelatedPartyTransactionCounterpartyDefaultPeriodOfDefaultAllowingTerminationOfAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <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_RelatedPartyTransactionTermOfAgreement" name="RelatedPartyTransactionTermOfAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" 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_SaleofUnitPricePerUnit" name="SaleofUnitPricePerUnit" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="wlkp_SaleofUnitPricePerUnitNetofUnderwritingDiscount" name="SaleofUnitPricePerUnitNetofUnderwritingDiscount" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element id="wlkp_ScheduleOfEstimatedUsefulLivesOfAssetsTableTextBlock" name="ScheduleOfEstimatedUsefulLivesOfAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsTable" name="ScheduleOfFiniteLivedAndIndefiniteLivedIntangibleAssetsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" 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_ScheduleOfOtherNonoperatingIncomeExpenseByComponentTextBlock" name="ScheduleOfOtherNonoperatingIncomeExpenseByComponentTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_ScheduleofFiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems" name="ScheduleofFiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_ScheduleofLiabilitiesRetainedByParentCompanyTableTextBlock" name="ScheduleofLiabilitiesRetainedByParentCompanyTableTextBlock" 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 abstract="true" id="wlkp_ServicesAndSecondmentAgreementMember" name="ServicesAndSecondmentAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_SiteLeaseAgreementMember" name="SiteLeaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="wlkp_SubordinatedUnitsMember" name="SubordinatedUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_SubsidiaryInitialPublicOfferingUseOfProceeds" name="SubsidiaryInitialPublicOfferingUseOfProceeds" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="wlkp_ThreePointSixZeroPercentageSeniorNotesDueTwentyTwentyTwoMember" name="ThreePointSixZeroPercentageSeniorNotesDueTwentyTwentyTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_ThresholdPeriodPastDueAccountsReceivableReviewed" name="ThresholdPeriodPastDueAccountsReceivableReviewed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="wlkp_TotalDeferredChargesandOtherAssetsNonCurrentNet" name="TotalDeferredChargesandOtherAssetsNonCurrentNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_TotalDeferredChargesandOtherAssetsNoncurrentGross" name="TotalDeferredChargesandOtherAssetsNoncurrentGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_TradeCustomerAndAffiliateReceivableNetCurrent" name="TradeCustomerAndAffiliateReceivableNetCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_TurnaroundCostsGross" name="TurnaroundCostsGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="wlkp_TurnaroundCostsNet" name="TurnaroundCostsNet" 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:element abstract="true" id="wlkp_WestlakeChemicalPartnersLPLongTermIncentivePlanMember" name="WestlakeChemicalPartnersLPLongTermIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
