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ID:34122458
大小:7.52 MB
页数:67页
时间:2019-03-03
《天然气电厂基于mea的烟气co2捕获系统工艺分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、北京交通大学硕士学位论文态实验水样中形成的表面形貌进行分析,并研究了去掉腐蚀产物后的不锈钢表面腐蚀形貌。结果表明随着时间增加,不锈钢表面不断累积腐蚀产物,使不锈钢表面Fe、Cr、Ni和Mn等基体主要金属元素的含量下降,而C、0等元素含量显著上升。MEA溶液对不锈钢的腐蚀是以点蚀开始,随着浸泡时间的增加,各个蚀点连接成线,并最终形成大面积腐蚀。关键词:天然气电厂;乙醇胺(MEA);CO:捕获;腐蚀;降解分类号:ABSTRA(-r一—————————————————————————————————————————
2、————————一ABSTRACTABSTRACT:Theincreasinganthropogeniccarbondioxide(C02)emissionthreatenstochangetheearth’sclimate.AmajorreasonofglobalwarmingisC02emissionfrompowel"plants.InChina,coal.firedgeneration’shighproportionandseriouspollutionproblemsneedtobesolved.N
3、aturegashasmanyadvantagessuchasclean,reliable,flexibleandsafe,however.DevelopmentofChina'snaturalgasgenerationisverynecessaryandurgent.OnewayofdecreasingC02emissionsisC02captureandseparation(CCS).Amongalldifferentpost.combustioncaptureprocessesofC02,chemica
4、labsorptionprocesswasconsideredasanoptimumonebecauseoflowC02concentrationinfluegas.ChemicalabsorptionofC02insimulatedfluegasfromnaturalgaspowerplantwithaqueousmonoethanolamine(MEA)solutionWasinvestigated.ThispaperoptimizestheoperationconditionofC02dynamicca
5、pturedeviceandexplorestheinfluellceoftheconcentrationof02inthefluegas,andanalysisthedegradationofMEAsolutionandcorrosionofequipmentpipeline,screeningforappropnateantidegradantandcorrosioninhibitor.Getthefollowingresultsandconclusions:1)InordertomaketheC02dy
6、namicexperimentaldevicecarlbeusedinoptimumoperatingcondition,traderthesameMEAconcentration,absorptiontemperatureandregenerationtemperature,thetestswereconductedOVertheliquid/gasratio粥from16L/m3to4L/m3,absorptionandregenerationperformanceofC02capturesystemwe
7、reanalysedbyexperimentmethod.Itshowsthat,intheotherconditionsamesituation,theabsorptionandregenerationperformanceofC02capturesystemhaveachievedgoodeffectattheliquid/gasratiois16L/m3.TheC02removalratec觚maintain21hatmorethan80%,andC02regenerationrateeventuall
8、ystabilizedataround70%.2)Underthesameliquid/gasratio,absorptiontemperatureandregenerationtemperature.thetestswereconductedoverMEAconcentrationfrom10%to40%,absorptionandregenerationperformanceofC02captu
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