炼油行业脱碳白皮书2023（英）

WHITEPAPER Poweringup:Pathwaysto decarbonizerefining OCTOBER2023 Credit:Unsplash/PatrickSchatz OGCIRefiningIndustryElectrification ExecutiveExecutiveSummary DocumentNumber:522215-8110-RP-001-006Revision:1ADate:18/6/2023 AROADMAPTO DECARBONIZEREFINING Executivesummary Credit:Unsplash/JoshuaSun RefiningIndustryElectrification522215-8110-RP-001-006,Rev1A TableofContents 1.BackgroundandObjectives4 2.Phase1:Baselining4 3.Phase2&3:OpportunityIdentificationandAnalysis5 3.1TechnologyAssessmentandRanking5 3.2ElectrificationProjectsAnalysis6 4.Phase4:RepresentativeSiteRoadmaps7 4.1PrimaryHighComplexityRoadmap7 4.2RoadblockAnalysis8 1.BackgroundandObjectives TheOilandGasClimateInitiative(“OGCI”)EnergyEfficiencyinIndustryWorkstream(EEIWS)hasformedaworkinggroupwiththepurposeofdevelopingalong-termroadmaptoelectrificationbasedontechnology,economics,andcarbonreductionpotential.ThisworkaimstoinformOGCImembersofthepotentialforelectrificationtocontributetocarbonintensityreductions.Thefirststageforthedevelopmentofthisroadmapconsistsoftheidentificationofopportunitiesandbarriersforelectrificationofrefineries. TheEEIWShasappointedWoodasindependentconsultanttoassessthepotentialofelectrificationasagreenhousegasemissionsreductionleverfortherefiningindustry. Thestudyfocusedonapplicationofelectrificationtoexisting,generalisedsitesasopposedtogreenfielddevelopmentopportunities,capturingthedifficultiesandopportunitiesinherentinexistingfacilitiesforelectrificationtechnologies,beforeapplyingelectrificationtoarangeofscenarioroadmaps.Thefourstudyphasesareshownbelow. Phase1Baselineenergymixinrefineries Phase2Identificationofopportunitiesforelectrification Phase3Quantitativeimpactandrankingoftheelectrificationoptions Phase4Identificationofroadmapsforimplementingelectrification RefiningIndustryElectrification522215-8110-RP-001-006,Rev1A RefiningIndustryElectrificationStudyPhases 2.Phase1:Baselining Thecurrentenergyconsumptionbyunitandbymajorequipmentwasassessedforthreerepresentativerefinerycomplexities,chosentoembodythemostcommonrefiningconfigurations: Ahighcomplexityrefineryincludingfullupgradingviacokingandfluidisedcatalyticcracking(FCC) Amediumcomplexityrefinerywithafocusonhydrogenadditionviavacuumgasoilupgradingviaahydrocracker Alowcomplexitytoppingrefinerywithnoupgradingofatmosphericresidue ThethreerefinerieswereconfiguredtoproduceEuro-Vspecificationtransportfuelsandutilisednaturalgasimportsasmarginalfuel. Utilitiessystemswerealsoconfiguredalongsidetheprocessunits,includingsteam,power,waterandothersystems.Complexityofthesteamsystemsfollowedtheprocessunits,withthehighcomplexityutilitiesincludingacogenerationplantandsteamturbinegenerators.Themediumcomplexityutilitiesincludedsteamturbinegeneratorswithnocogeneration,andthelowcomplexityconfigurationincludedlet-downdesuperheatersonly. Theprocessunitsandutilitiesconsideredforthebasecaseequipmentenergyconsumptionwerebasedonawell-operatedtypicalcurrentconfiguration,hencesomeinvestmentopportunitiesremaintoreduceenergydemand,butoperationandmaintenancewasassumedtoprioritiseenergyefficiency.Althoughnotconsideredaspartofthestudy,poorlyoperatedsiteswherethereissignificantscopeforenergysavingsshouldhaveaninitialfocusonlow-investmentenergyefficiencyimprovement,followedbyelectrificationandlargerenergyefficiencyprojectsinanintegratedroadmap. RefiningIndustryElectrification522215-8110-RP-001-006,Rev1A 3.Phase2&3:OpportunityIdentificationandAnalysis TheobjectiveofPhase2wastoidentifyelectrificationoptionsavailabletorefinerieswithhighlevelassessment,inordertoprovidescreeningoftheseoptions.Phase3providedfurtheranalysisdetailofcost,plot,scheduleandrequirementsforsupportingelectricalinfrastructure. Thefuelgascompositionforthesites,typicalnaturalgascompositionandtypicalCO2equivalentemissionsofnaturalgassupplywereincludedintheCO2reductioncalculations.Life-cycleemissionsfromthelow-carbonelectricityimportswereutilised,basedonamixofwind,solarandnucleargeneration. 3.1TechnologyAssessmentandRanking Relevantrefineryelectrificationtechnologieswerereviewedtoquantifythefollowing: ScaleoffacilityCO2emissionssavings,utilisingmajorequipmentconsumptions Highlevelcapitalcostefficiency Emissionsreductionperunitofadditionallow-carbonelectricityutilisedThefollowingcriteriawerereviewedbyspecialiststoprovidequalitativeimpacts: TechnologyReadinessLevel(TRL)wasusedtoidentifythematurityofatechnology. Easeofimplementation.Thisincludedtheabilitytoinstallthetechnologyalongsideongoingoperationandtie-inwithinatypicalturnaroundwindow.Plotspacewasalsoconsidered. Reliability,availability,maintainabilityandoperationsimpact.Thisincludedrisktooperationsduetosinglemodeoffailure(power),inherentreliabilityofthetechnology,andoperationaldifficulty. Health,safety,securityandenvironmentalimpact.Thisincludedpotentialmajorincidentimpactsofpoweroutagescenarios,aswellasanyotheridentifiedHSSEimpacts. Electricboilersandelectricdrivesappliedtocondensingturbineswereshowntobethehighestprioritytechnologiesforimplementationduetoablendofefficien