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变压吸附提纯沼气中CH4的试验研究 Title:ExperimentalStudyonthePurificationofCH4inBiogasusingPressureSwingAdsorption Abstract: Biogas,arenewableenergysourceprimarilycomposedofmethane(CH4),hasgainedsignificantattentionasanalternativetotraditionalfossilfuels.However,theimpuritiespresentinbiogas,suchascarbondioxide(CO2),moisture,hydrogensulfide(H2S),andothertracegases,hindertheefficientuseofthisvaluableresource.ThisstudyaimstoinvestigatethepurificationofbiogasbyselectivelyremovingCH4usingpressureswingadsorption(PSA)technology.Theexperimentalsetupandresults,aswellastheoverallapplicabilityandbenefitsofPSAinbiogaspurification,arediscussedindetail. 1.Introduction 1.1Background 1.2Objectives 1.3SignificanceoftheStudy 2.BiogasandItsImpurities 2.1CompositionofBiogas 2.2ImpuritiesinBiogas 3.PressureSwingAdsorption(PSA)Technology 3.1PrincipleofPSA 3.2AdsorbentsandSelectivity 3.3ProcessParameters 4.ExperimentalMethodology 4.1DesignofExperimentalSetup 4.2AdsorbentMaterialSelection 4.3ExperimentalProcedure 5.ResultsandAnalysis 5.1AdsorptionPerformanceofCH4 5.2EffectofPressureandTemperature 5.3DesorptionandRegenerationofAdsorbent 5.4ImpurityRemovalEfficiency 6.Discussion 6.1ComparisonwithOtherPurificationMethods 6.2ApplicabilityofPSAinBiogasPurification 6.3BenefitsandChallengesofPSATechnology 6.4FutureResearchDirections 7.Conclusion 1.Introduction 1.1Background: Biogas,derivedfromvarioussourcessuchaslandfills,anaerobicdigesters,andwastewatertreatmentplants,hasemergedasapromisingalternativeenergysourceduetoitsrenewabilityandlowcarbonfootprint.Theprimaryconstituentofbiogas,methane(CH4),possesseshighenergycontent,makingitsuitableforvariousapplicationssuchaselectricitygeneration,heating,andtransportation.However,biogascontainsimpurities,includingcarbondioxide(CO2),moisture,hydrogensulfide(H2S),andtracegases,whichaffectitsenergyefficiencyandcontributetoenvironmentalpollution. 1.2Objectives: Theobjectiveofthisstudyistoexploretheeffectivenessofpressureswingadsorption(PSA)technologyinremovingCH4frombiogast