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<element name="DerivativeWarrantLiabilitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_DerivativeWarrantLiabilitiesAbstract" substitutionGroup="xbrli:item" />
<element name="DerivativeWarrantLiabilitiesTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_DerivativeWarrantLiabilitiesTextBlock" substitutionGroup="xbrli:item" />
<element name="OfferingCostsAssociatedWithInitialPublicOfferingPolicyTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_OfferingCostsAssociatedWithInitialPublicOfferingPolicyTextBlock" substitutionGroup="xbrli:item" />
<element name="TemporaryEquityPolicyTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_TemporaryEquityPolicyTextBlock" substitutionGroup="xbrli:item" />
<element name="EmergingGrowthCompanyPolicyTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_EmergingGrowthCompanyPolicyTextBlock" substitutionGroup="xbrli:item" />
<element name="ScheduleOfReconciliationOfOrdinarySharesSubjectToPossibleRedemptionReflectedInBalanceSheetTableTextBlock" type="dtr-types:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_ScheduleOfReconciliationOfOrdinarySharesSubjectToPossibleRedemptionReflectedInBalanceSheetTableTextBlock" substitutionGroup="xbrli:item" />
<element name="OrganizationConsolidationAndPresentationOfFinancialStatementsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_OrganizationConsolidationAndPresentationOfFinancialStatementsTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" substitutionGroup="xbrli:item" />
<element name="FairValueOfNetAssetsOfTheAcquireAsAPercentageOfAssetsInTheTrustAccount" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_FairValueOfNetAssetsOfTheAcquireAsAPercentageOfAssetsInTheTrustAccount" substitutionGroup="xbrli:item" />
<element name="NetWorkingCapital" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_NetWorkingCapital" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ClassOfWarrantOrRightIssuedDuringPeriodShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_ClassOfWarrantOrRightIssuedDuringPeriodShares" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightSharePrice" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_ClassOfWarrantOrRightSharePrice" substitutionGroup="xbrli:item" />
<element name="MinimumPerShareAmountToBeMaintainedInTheTrustAccount" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_MinimumPerShareAmountToBeMaintainedInTheTrustAccount" substitutionGroup="xbrli:item" />
<element name="PercentageOfSharesEligibleToBeTransferredWithoutAnyRestriction" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_PercentageOfSharesEligibleToBeTransferredWithoutAnyRestriction" substitutionGroup="xbrli:item" />
<element name="PercentageOfPublicSharesToBeRedeemedInCaseBusinessCombinationIsNotConsummated" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_PercentageOfPublicSharesToBeRedeemedInCaseBusinessCombinationIsNotConsummated" substitutionGroup="xbrli:item" />
<element name="EarningsBeforeInterestTaxesDepreciationAndAmortization" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_EarningsBeforeInterestTaxesDepreciationAndAmortization" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="NewOpalClassaCommonStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_NewOpalClassaCommonStockMember" substitutionGroup="xbrli:item" />
<element name="NewOpalClassDCommonStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_NewOpalClassDCommonStockMember" substitutionGroup="xbrli:item" />
<element name="NewOpalClassBCommonStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_NewOpalClassBCommonStockMember" substitutionGroup="xbrli:item" />
<element name="NewOpalClassbCommonStockAndNewOpalClassdCommonStockMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_NewOpalClassbCommonStockAndNewOpalClassdCommonStockMember" substitutionGroup="xbrli:item" />
<element name="PrivatePlacementWarrantsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_PrivatePlacementWarrantsMember" substitutionGroup="xbrli:item" />
<element name="SponsorMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_SponsorMember" substitutionGroup="xbrli:item" />
<element name="EarnoutTriggeringEventAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_EarnoutTriggeringEventAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="EarnoutTriggeringEventDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_EarnoutTriggeringEventDomain" substitutionGroup="xbrli:item" />
<element name="FirstEarnoutTriggeringEventMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_FirstEarnoutTriggeringEventMember" substitutionGroup="xbrli:item" />
<element name="SecondEarnoutTriggeringEventMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_SecondEarnoutTriggeringEventMember" substitutionGroup="xbrli:item" />
<element name="UsGovernmentSecuritiesMaturityTerms" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_UsGovernmentSecuritiesMaturityTerms" substitutionGroup="xbrli:item" />
<element name="EarningsPerShareLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_EarningsPerShareLineItems" substitutionGroup="xbrli:item" />
<element name="EarningsAllocableToOrdinarySharesSubjectToPossibleRedemptionAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_EarningsAllocableToOrdinarySharesSubjectToPossibleRedemptionAbstract" substitutionGroup="xbrli:item" />
<element name="InitialPublicOfferingTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_InitialPublicOfferingTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="InitialPublicOfferingLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_InitialPublicOfferingLineItems" substitutionGroup="xbrli:item" />
<element name="PublicWarrantsMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_PublicWarrantsMember" substitutionGroup="xbrli:item" />
<element name="PrivatePlacementTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_PrivatePlacementTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="PrivatePlacementLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_PrivatePlacementLineItems" substitutionGroup="xbrli:item" />
<element name="NumberOfDaysFromWhichWarrantsWillNotBeTransferableOrSaleable" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_NumberOfDaysFromWhichWarrantsWillNotBeTransferableOrSaleable" substitutionGroup="xbrli:item" />
<element name="SharesTransferredToRelatedParty" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_SharesTransferredToRelatedParty" substitutionGroup="xbrli:item" />
<element name="NumberOfCommonStockSharesSubjectToForfeiture" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_NumberOfCommonStockSharesSubjectToForfeiture" substitutionGroup="xbrli:item" />
<element name="AgreedAmountToRepayForAdministrativeServices" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_AgreedAmountToRepayForAdministrativeServices" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="PercentOfFounderSharesToCompanysIssuedAndOutstandingShares" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_PercentOfFounderSharesToCompanysIssuedAndOutstandingShares" substitutionGroup="xbrli:item" />
<element name="ThresholdOptionPeriodForExpirationOfRemainingOverallotmentOption" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_ThresholdOptionPeriodForExpirationOfRemainingOverallotmentOption" substitutionGroup="xbrli:item" />
<element name="NumberOfTradingDaysForDeterminingSharePrice" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_NumberOfTradingDaysForDeterminingSharePrice" substitutionGroup="xbrli:item" />
<element name="ThresholdNumberOfTradingDaysForDeterminingSharePriceFromDateOfBusinessCombination" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_ThresholdNumberOfTradingDaysForDeterminingSharePriceFromDateOfBusinessCombination" substitutionGroup="xbrli:item" />
<element name="ShareTransferTriggerPricePerShare" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_ShareTransferTriggerPricePerShare" substitutionGroup="xbrli:item" />
<element name="NumberOfConsecutiveTradingDaysForDeterminingSharePrice" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_NumberOfConsecutiveTradingDaysForDeterminingSharePrice" substitutionGroup="xbrli:item" />
<element name="CapitalizationAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_CapitalizationAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="CapitalizationDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_CapitalizationDomain" substitutionGroup="xbrli:item" />
<element name="SharePriceRangeAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_SharePriceRangeAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="SharePriceRangeDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_SharePriceRangeDomain" substitutionGroup="xbrli:item" />
<element name="SharePriceMoreThanOrEqualsToUsdTwelveMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_SharePriceMoreThanOrEqualsToUsdTwelveMember" substitutionGroup="xbrli:item" />
<element name="RelatedPartyLoanMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_RelatedPartyLoanMember" substitutionGroup="xbrli:item" />
<element name="WorkingCapitalLoanMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_WorkingCapitalLoanMember" substitutionGroup="xbrli:item" />
<element name="DeferredUnderwritingDiscountPerUnit" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_DeferredUnderwritingDiscountPerUnit" substitutionGroup="xbrli:item" />
<element name="UnderwritingDiscountPerUnit" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_UnderwritingDiscountPerUnit" substitutionGroup="xbrli:item" />
<element name="OptionGrantToUnderwritersToPurchaseAdditionalUnits" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_OptionGrantToUnderwritersToPurchaseAdditionalUnits" substitutionGroup="xbrli:item" />
<element name="UnderwritingAgreementMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_UnderwritingAgreementMember" substitutionGroup="xbrli:item" />
<element name="ShareCapitalizationMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_ShareCapitalizationMember" substitutionGroup="xbrli:item" />
<element name="CommonStockThresholdPercentageOnConversionOfShares" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_CommonStockThresholdPercentageOnConversionOfShares" substitutionGroup="xbrli:item" />
<element name="DerivativeWarrantLiabilitiesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_DerivativeWarrantLiabilitiesTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="SharePriceEqualsOrExceedsEighteenUsdMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_SharePriceEqualsOrExceedsEighteenUsdMember" substitutionGroup="xbrli:item" />
<element name="SharePriceEqualsOrExceedsTenUsdMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_SharePriceEqualsOrExceedsTenUsdMember" substitutionGroup="xbrli:item" />
<element name="TriggerEventAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_TriggerEventAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="TriggerEventDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_TriggerEventDomain" substitutionGroup="xbrli:item" />
<element name="EventTriggeringWarrantRedemptionMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_EventTriggeringWarrantRedemptionMember" substitutionGroup="xbrli:item" />
<element name="WarrantRedemptionTriggerPriceAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_WarrantRedemptionTriggerPriceAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="WarrantRedemptionTriggerPriceDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_WarrantRedemptionTriggerPriceDomain" substitutionGroup="xbrli:item" />
<element name="TriggerPriceOneMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_TriggerPriceOneMember" substitutionGroup="xbrli:item" />
<element name="TriggerPriceTwoMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_TriggerPriceTwoMember" substitutionGroup="xbrli:item" />
<element name="DerivativeWarrantLiabilitiesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_DerivativeWarrantLiabilitiesLineItems" substitutionGroup="xbrli:item" />
<element name="PercentageOfEquityProceedsFromBusinessCombinationAsAPercentageOfTotalProceeds" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_PercentageOfEquityProceedsFromBusinessCombinationAsAPercentageOfTotalProceeds" substitutionGroup="xbrli:item" />
<element name="WeightedAveragePriceOfCommonStockAsReportedDuringTradingDaysToMeetFairMarketValueCriteria" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_WeightedAveragePriceOfCommonStockAsReportedDuringTradingDaysToMeetFairMarketValueCriteria" substitutionGroup="xbrli:item" />
<element name="VolumeWeightedAveragePricePerShare" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_VolumeWeightedAveragePricePerShare" substitutionGroup="xbrli:item" />
<element name="PeriodWithinWhichRegistrationStatementShallBeEffectiveOnClosureOfBusinessCombination" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_PeriodWithinWhichRegistrationStatementShallBeEffectiveOnClosureOfBusinessCombination" substitutionGroup="xbrli:item" />
<element name="NumberOfWarrantsWillNotExercisableDuringRedemptionPeriodPricePerWarrant" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_NumberOfWarrantsWillNotExercisableDuringRedemptionPeriodPricePerWarrant" substitutionGroup="xbrli:item" />
<element name="NumberOfTradingDays" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_NumberOfTradingDays" substitutionGroup="xbrli:item" />
<element name="RedemptionTriggerPriceAsAPercentageOfNewlyIssuedPrice" type="dtr-types:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_RedemptionTriggerPriceAsAPercentageOfNewlyIssuedPrice" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantsOrRightsRedemptionPricePerShare" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_ClassOfWarrantsOrRightsRedemptionPricePerShare" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantOrRightPriorWrittenNoticeOfRedemption" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_ClassOfWarrantOrRightPriorWrittenNoticeOfRedemption" substitutionGroup="xbrli:item" />
<element name="NumberOfConsecutiveTradingDaysToDetermineCallOfWarrantRedemption" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_NumberOfConsecutiveTradingDaysToDetermineCallOfWarrantRedemption" substitutionGroup="xbrli:item" />
<element name="NumberOfTradingDaysToDetermineCallOfWarrantRedemption" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_NumberOfTradingDaysToDetermineCallOfWarrantRedemption" substitutionGroup="xbrli:item" />
<element name="NumberOfDaysFromWhichWarrantsBecomeExercisableAfterTheCompletionOfBusinessCombination" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_NumberOfDaysFromWhichWarrantsBecomeExercisableAfterTheCompletionOfBusinessCombination" substitutionGroup="xbrli:item" />
<element name="NumberOfBusinessDaysAfterTheClosingOfBusinessCombinationMadeEffortsForSecRegistrationStatement" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="actdu_NumberOfBusinessDaysAfterTheClosingOfBusinessCombinationMadeEffortsForSecRegistrationStatement" substitutionGroup="xbrli:item" />
<element name="ClassOfWarrantsOrRightsRedemptionTriggerPrice" type="dtr-types:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="actdu_ClassOfWarrantsOrRightsRedemptionTriggerPrice" substitutionGroup="xbrli:item" />
<element name="TriggeringEventAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_TriggeringEventAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="TriggeringEventDomain" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_TriggeringEventDomain" substitutionGroup="xbrli:item" />
<element name="DerivativeWarrantLiabilitiesMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="actdu_DerivativeWarrantLiabilitiesMember" substitutionGroup="xbrli:item" />
</schema>
