天然气净化工艺技术研究与应用

第24卷第2期2006年4月天然气与石油NaturalGasAndOilVol.24,No.2Apr.2006:20050614:(1972),,,,1996(),:[phone]罗小武(,834002):天然气净化工艺在20世纪得到了长足的发展介绍了常用的几种天然气净化工艺:胺法混合胺法Benfield法Sulfinol法工艺低温甲醇洗工艺膜分离技术和一些非常规的净化工艺,说明各自工艺的特点和应用情况,最后指出了天然气净化工艺的发展趋势并提出了建议:天然气;净化;工艺:10065539(2006)02003005:A0引言,,,,(PSA)1胺法[1](MEA)(DEA)(DIPA)(MDEA)MEA,;H2SCO2,;,;,,:MEA,MEA;MEA,,DEA,MEA,H2SCO2MEA,SNPA(),229mg/m3MEA,,MEADIPAMDEACO2,H2S,H2S2混合胺工艺[2]:BryanMDEA/DEACO2BryanDEAMDEA/DEA,15%(m)MDEA-35(m)DEA+50%(m),MDEA/DEA,,CO2100010-6,20010-6,MDEA/DEAH2SCO2,,BASFaMDEA!aMDEAMDEAMDEA,CO2aMDEA/,(C3+)/,VNIIGASVNIIGAS,OrenburgskyAstrakhansky70%(m)MDEA30%(m)DEASNPA-DEAMDEAMDEA,,ELfMDEAMDEAMDEA()MDEA,,,2080FS(AmineGuardFormulatedSolvent),:,;MEADEA,;,;3Benfield工艺[3]Benfield7MPa,50%,Benfield600,LNGBenfieldHipureBenfield,,8LNGBenfieldP1:,P1,(DEA),P1DEA25%5%~15%5%~15%,CO,,P1,4Sulfinol工艺,,,,(DIPA)(MDEA),,,,,,,1964,,,5Sulfatreat工艺[4]SulfatreatH2SSulfatreat,,30%30%30%~40%,Sulfatreat/,21~50∀,Sulfatreat,31第24卷第2期罗小武:天然气净化工艺技术研究与应用,SulfatreatH2S,Sulfatreat,,Sulfatreat(),Sulfatreat,:SulfatreatpH;,;SulfatreatH2S,,,,6低温甲醇洗工艺[5~9]2050,,11#;∃;%;&;∋;(;)41MPa(,),-35∀,CO2304%(V),,H2O,CO2H2S125MPa,CH4,CO2,90%,,,03MPa,,012MPa,,CO2,-35∀,41MPa,,,,04MPa,CO23310-6,,:,,CO2,H2S,COSH2O,10,,;,CO2,H2S,COSH2O,,;,,;,;,,;,7膜分离工艺[10~13],,,knuden(),,knuden,CH4H2S,CO2,H2O,CH4H2S,CO2,H2O,knuden,32天然气与石油2006年,,,:H2S,CO2,H2O,,,H2S,CO2,H2OCH4,CH4192m,H2S,CO2,H2O,,CH4,H2S,CO2,H2OCH4,,∗!∗!,,∗!,H2S,CO2,H2O,H2,HeO2,;∗!(),CH4,N2,Ar,CO,,()H2S,CO2,H2O,:,;,:a.:103MPa,,b.:80%,,,,,c.H2S:H2S,H2S,,,H2S5010-6,,,;(300m),,,,,,,3~5,,,,,,CO2,H2S,H2S,,,,,H2S,8其它工艺[13]81(PSA)PSA,,1959,,PSA2080,33第24卷第2期罗小武:天然气净化工艺技术研究与应用,1991CO2,PSAH2S,,PSA,,CO2/H2S,,,,CO2SO2:;,PSA,,82CO2(CO2/EOR)CO210%70%~80%,CO2,,(),:CH4-CO2CO2;C2-CO2;H2S,H2S-CO2EORCO2,EOR,,,9发展趋势,,,(PSA),;,,,:[1],.[J].,2000,29(4):188200.[2].[J].,1998,16(2):915.[3].LNG[J].,1994,14(4):6872.[4],.[J].,1999,(23):5464.[5],,.[J].,2003,28(2):2829.[6],.[J].,1999,(4):259262.[7].80[J].,1990,19(2):2732.[8],.[J].,1994,23(1):3135.[9],,.2104Nm3/d[J].,2002,22(3):9295.[10],.[J].,1993,11(1):1821.[11].[J].,1989,9(2):5763.[12],.[J].,1993,13(1):100105.[13].[J].,1996,16(3):7985.34天然气与石油2006年