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矿物催化低硫稠油水热裂解反应研究(英文).docx

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矿物催化低硫稠油水热裂解反应研究(英文) Title:ResearchonMineralCatalyzedHydrothermalCrackingReactionofLowSulfurHeavyOil Abstract: Thehydrothermalcrackingreactionoflowsulfurheavyoilhasgainedsignificantattentioninrecentyearsduetoitspotentialforconvertingheavyoilintomorevaluableandlighterhydrocarbons.Thispaperpresentsacomprehensivereviewoftheresearchconductedonthemineralcatalyzedhydrothermalcrackingreactionoflowsulfurheavyoil.Theobjectiveofthisstudyistoanalyzetheeffectsofdifferentmineralcatalystsandreactionconditionsontheyieldandqualityoftheobtainedhydrocarbonproducts. 1.Introduction Thegrowingdemandforenergyandthedeclineinconventionalcrudeoilreserveshaveledtoanincreasedinterestintheutilizationofheavyoilsandbitumens.However,thehighviscosityandhighsulfurcontentoftheseoilresourcesposechallengesforrefiningandprocessing.Hydrothermalcrackinghasemergedasapromisingtechnologytoconvertheavyoilsintolighterandmorevaluablehydrocarbonsunderrelativelymildreactionconditions.Mineralcatalystshavebeenwidelyinvestigatedfortheirabilitytoenhancethehydrothermalcrackingprocess. 2.ReactionMechanisms Thehydrothermalcrackingoflowsulfurheavyoilinvolvescomplexchemicalreactions,includinghydrocracking,hydroisomerization,hydrogenation,anddecomposition.Variousreactionmechanismshavebeenproposedbasedonexperimentalandtheoreticalstudies.Theroleofmineralcatalystsinpromotingthesereactionsisdiscussedindetail. 3.EffectofMineralCatalysts Mineralcatalysts,suchaszeolites,clays,andsulfides,haveshownpromisingcatalyticperformanceinhydrothermalcracking.Thissectionpresentsanoverviewoftheeffectsofdifferentmineralcatalystsontheconversionrate,selectivity,andstabilityofthereaction.Factorssuchascatalystcomposition,acidity,andporosityarediscussed,alongwiththeirinfluenceontheproductdistribution. 4.ReactionConditions Thereactionconditions,includingtemperature,pressure,reactiontime,andsolvent,significantlyinfluencethehydrothermalcrackingprocess.Experimentalstudiesinvestigatingtheeffectoftheseparametersontheyieldandqualityofthehydrocarbonproduc