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3(610301),,,AdvancesinTechnologicalProcessforPurificationwithLow2TemperatureMethanolWashanditsUseWangJiaming(SichuanChemicalWorksGroupLtd.Chengdu610301)AbstractLow2temperaturemethanolwashisanenergy2savingprocessforthepurificationofacidgasesardisusedextensivelyinmorethanahundredproductionunitsbothathomeandabroadforam2monia,methanolandoxosynthesis,industrialmanufactureofhydrogen,towngas,anddesulfurizationofnaturalgas.Apresentationisgivenoftherecenttechnicaladvancesmadeintheprocess,itscom2parisonwithotherpurificationprocessesintermsofenergyconsumptionandinvestmentandtechnicalcharacteristics,andabriefoutlineisgivenofitsactualuseintheacidgaspurificationunits.Keywordspurificationlow2temperaturemethanolwashgeneralsituationofdevelopmentuse(RectisolProcess)(Linde)(Lurgi),-60,H2S,CO2,,,11954Sasol1,2070,---,;,,,,,,,,,,11354200883:028283621163,,,,,,,,,,,,,,,,,FeSNiS,,,,:NH3HCN;;,;FeSNiS,22070,,,,,20,1983,,1999,6,,,10%,,TEMA,,,,,,2323,H2S3.5Ni,,ª2300mm,55000mm,,,16.5MPa,,5.5MPa,,3,1,,,121354200881/kt100030050,,2007560027.9,2007460026.7,200742404009.04,20076,2009630015026,200612,,200940020019.89,200850021.76,200761500192,2005,200910120048.9,()60023.2,3000195.75,()3009.2,201063+NHD3,+,,,,,,;NHD+,,,;,,3223+NHD/t1361885/(kWh)1057425/t1.770.320.31/GJ0.230.29/GJ8.112.321.754(1),CO2,H2SCOS,3.1MPa,1m3CO2160180m3,1m3NHDCO24055m3,CO2NHD4,,,(2)CO2,H2SCOS,CO2H2S,H2SCO22,CO2,H2S(3)H2S0.110-6(,),CO22010-6,CO299%,63%,,,H2,H20.12%(4),,,,,,NHD,3135420088,,,,,,,,55.1,DETAH2SCO2,,,,,,,,-70-4011,,-40:,;,CONH3,;,,;,,,;,,,,,,95%,,5.2,,20016Shell,Shell,CO2,ADA,,,,,NHD,,(),,,,,,Shell2006517,,CO,CO67.0%0.3%,,,,400036(1),,41354200883/(th-1)210/-50/(th-1)50CO21)/%98.5(H2S+COS)/(10-6)18H2S/(th-1)1351)CO2/%80(H2+COS)/(10-6)18CO2/(th-1)1001)CO2/(10-6)5H2S+COS0:1)(2),,,(3)-,,[1].[J].,2001,(1):36237.[2],.[J].,2002,(5)13215.[3],,,.Shell[J].,2003,(3):124.[4],.[J].,2003,(6):44245.[5].[J].,2004,22(6):4522455.[6].()[J].,2005,32(2):19228.[7],,,.NHD[J].,2007,(1):126.[8].22[C].:,2004:1592164.[9].25[C].:,2007:83286.[10].[M].:,2000:4472450.[11].--[EB/OL].[2007202201].http:[12].[EB/OL].[2003202210].http:bi.icxo.com.[13].,[EB/OL].[2007202227].http:(2007204228)(10),(2)BB,,,BB,,(3)BB,BB,3BB,2/g20%30%BB,:BB,13.8%21.6%,11.8%16.3%,45d89d,,,,,,,(2007208213)5135420088