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高解吸率CO2复合吸收剂的性能研究.docx

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高解吸率CO2复合吸收剂的性能研究 高解吸率CO2复合吸收剂的性能研究 Abstract EnvironmentalconcernshavepromptedextensiveresearchintoCO2capturetechnologies.Amongthese,aqueousamine-basedabsorptiontechnologyisoneofthemostwell-establishedandwidelyusedmethodsforCO2capture.However,oneofthemajorchallengeswiththistechnologyisthehighenergyrequiredforsolventregenerationduetothelowCO2desorptionrate.Therefore,developinghighdesorptionrateCO2compositeabsorptionagentshasdrawnconsiderableresearchattentioninrecentyears.Inthispaper,wereviewrecentadvancesinCO2compositeabsorptionagentsthatexhibithighdesorptionratesanddiscussthekeyfactorsthataffecttheirperformance. Introduction Carbondioxide(CO2)isoneofthemostabundantgreenhousegases,anditsincreasingconcentrationintheatmosphereisresponsibleforglobalclimatechange.Therefore,thedevelopmentofefficientCO2capturetechnologiesisofcrucialimportanceformitigatingtheimpactofCO2emissions.Amongthesetechnologies,aqueousamine-basedabsorptiontechnologyisawell-establishedandwidelyusedmethodforCO2capture.However,thelowCO2desorptionrateoftraditionalaminesisamajorchallengeforthewidespreadadoptionofthistechnology.Therefore,researchershavebeenexploringvariousoptionstoenhancetheperformanceofaqueousamine-basedabsorptiontechnology. CO2CompositeAbsorptionAgents CompositeabsorptionagentsarecomposedoftwoormorechemicalcomponentsthatcansynergisticallyenhancetheirCO2absorptionanddesorptionproperties.Compositeabsorptionagentshaveadvantagesoversingle-componentabsorptionagentsbecausetheycanbetailoredtoenhancetheirperformancebyoptimizingtheinteractionbetweentheirchemicalcomponents.Inrecentyears,avarietyofCO2compositeabsorptionagentshavebeendeveloped,whichexhibithighdesorptionrates.Thefollowingaresomeexamples: 1.Amine-FunctionalizedIonicLiquids(ILs) ILsareorganicsaltswithuniqueproperties,suchaslowvaporpressure,highthermalstabilityandbroadchemicaltunability.Amine-functionalizedILshavebeenstudiedasCO2compositeabsorptionagentsduetotheirhighCO2absorptioncapacity.Inaddition,theyexhibithighdesorptionrates,whichc