PDS法高硫煤气净化工艺的研究

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(200062)(200241)(130024),PDS,PDS,94%98%,,PDS,15%19%,25%,42188,,1996PDSStudyofPurificationProcessforHigh2SulfurCoalGasbyPDSProcessYangXianwen,WangYanfei,LiuHenian,LuHaiming,YangShuqingandChenBinAbstractAtestwasmadetoreplacetheG2VprocessfordesulfurizationbythePDScatalystintheG2VcommercialunitsoastotransitsmoothlytothePDSprocess,andthedesulfurizationefficiencyreached94%98%,realizingnon2toxicdesulfurizationandsolvingtheenvironmentalprotectionprob2lemoftheplant.WhencomparedwiththeG2Vprocess,thePDSprocessproduces15%19%moresulfur,reducessodaconsumptionbyabout25%andadds428800yuaninbenefitannually.Also,twosaltscanbeextractedasby2products,withthesodiumandsulfurinthesystembeingbasicallyinbal2ance.Thisprocessisappropriateforprimarydesulfurizationofhigh2sulfurcoalgasandwasappraisedundertheorganizationbytheShanghaiMunicipalCommissionforScienceandTechnologyin1996.KeywordsdesulfurizationPDSprocessG2Vprocess11.1,,,As2O3,,1.0t1993,02X,,244©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:3Na2CO3+As2O3=2Na3AsO3+3CO2Na3AsO3+3H2S=Na3AsS3+3H2O2Na3AsS3+O2=2Na3AsS3O:Na3AsS3O+H2S=Na3AsS4+H2O2Na3AsS4+O2=2Na3AsS3O+2S,,ADA,PDS::Á3500H25050,1201212,125,F=12550m2,32;:Á2600,H=36500,32;:12SH-9,Q=792m3,H=58m,12;:Á600,H=2400,5;:Á1000,H=2000,1;:Á8000,H=4500,22PDSPDS,,2.1PDS(1),12,H2S99%,HCN95%,,50%PDS,H2S(RSH,COS,CS2)CO2(2),,,,(),,(3),(),(4),PDSADAADAV2O5V2O550%,ADA2.2PDSPDS,:H2S()=H2S()H2S()+Na2CO3=NaHS+NaHCO3NaHS+(x-1)S+NaHCO3=Na2Sx+CO2+H2O:RSH+NaOH=RSNa+H2OCOS+2NaOH=NaCO2S+H2OCS2+2NaOH=Na2COS2+H2O:2NaHS+O2=2NaOH+2S2Na2Sx+O2+2H2O=4NaOH+2Sx4RSNa+O2+2H2O=2RSSR+4NaOH2Na2CO2S+O2=2Na2CO3+2SNa2COS2+O2=Na2CO3+2S12244©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=Na2S2O3+CO22HCN+Na2CO3=2NaCN+CO2+H2ONaCN+Na2Sx=NaCNS+Na2S(x-1)2NaCNS+4H2O+O2=Na2CO3+(NH4)2CO3+2SPDS,PDS,,PDS,PDS,,1977,4070,,,PDS,,,PDS33.1PDSAs2O3:,85%,H2S813g/m3,22.5g/m3,H2SAs2O3,80%100%,0.5g/L,AH(0.20.5g/L)2195%,H2S22.5g/m33.2PDS80%96%,22PDS(m3/h)30000450003000045000H2S(g/m3)813813H2S(g/m3)22.52.5(m3/h)600600()4648444644464244As2O3810g/LPDS1010-63010-61.261.30(Na2CO3,g/L)91115.921.2pH7.68.28.28.5(kg)1000700(g/L)400400,34000045000m3/h,96.77%,81.79%PDS,1995719963,,,,PDS,,,,85156%,6618%,19964,,,,85%97.74%2PDS11,As2O3PDS,,,96%,,,3.333,PDS,,,19965,,98.8%(),0.25%,22244©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(m3/h)H2S(g/m3)(%)(g/L)1995-011995-021995-031995-041995-051995-061995-073352.72746.93733.23775.23221.33603.63602.512.1252.20810.8140.56410.1620.52813.1580.53111.9681.10312.2680.82312.9810.41981.7994.7894.8095.9690.2893.5296.7778788979787978.51995-081995-091995-101995-111995-121996-011996-021996-03+PDS3804.83733.13474.312.8432.92112.1412.69411.9911.73277.2776.1085.56As2O3,PDS510-65.4g/L,PDS510-61510-63.4g/L,PDS2010-65010-63265.73599.23486.73361.63551.111.9472.12911.0243.24110.9182.97311.3713.79811.3733.63382.1870.6072.7766.8068.0610.125g/L,PDS2010-65010-61996-041996-051996-061996-071996-081996-091996-10PDS3663.53688.33127.711.6351.73012.9140.77012.8440.72485.1394.0494.580.05g/L,PDS1010-63010-62975.62904.32568.52661.713.1980.29812.0350.31310.8790.65110.1220.75297.7497.3994.0092.600.03g/L,PDS1010-62010-61As2O332244©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(t)(%)(t)(kg)()19941995-01-1995-071529.76866909990991494.16802.4297793092.56%PDS()1995-08-1995-12611.767585493.6780778.34%1996-01-1996-04625.147585407.836521996-05-1996-09758.388598.8471.3862295.55%4(t/)(%)(t/)(%)()19941995-04-1995-074517.496.295971596792.89092PDS()1995-09-1995-121996-01-1996-031996-04-1996-0927.88722818995969597111.827808386909290924.8%,44,(pHPDS),PDS,,3.45PDS()5:H2S294.8(t/m)38.27(t/m)(t/m)(%)H2S(t/m)(%)20801869590907.9819.74177.865.4013.357.26205.5826.01519968:39000m3/h,H2S11g/m3,0.5g/m3,90t:H2S69.74%,68%PDSH2S66PDSH2S(%)PDS717761003.899.6086.51100.0044.19PDS,PDS,,1994PDS77,PDS,42244©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:;3,;,7PDS(/t)PDS(t)()(t)()0.15124.5318.6894.314.15As2O30.43481.340.59PDS58.000.0452.61AH3.000.0900.2719.2717.032.2426.884.2As2O3,,,PDS,,,700tAs2O3810g/L,9,0.03g/L,,,,5(1),PDS94%98%,H2S013110g/m3,,,,,,,42188,(2)PDS,16%19%,25%30%,50%,(H2S10g/m3),,ADA,,14,,(3)AH,,,8PDS,(199537,PDS199659,9)8,018110kg/m3,PDS016019kg/m301240135kg/m382PDS(kg/m3)(kg/m3)(%)(kg/m3)(kg/m3)(%)15.450.7994.8014.750.8994.0415.731.0195.7617.950.8894.5817.390.7990.2819.500.8697.7417.420.8393.5219.980.7697.3918.650.8596.7721.870.6194.00(4)PDSH2S,2(9)H2S52244©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(200092),,2%,420mA,DevelopmentofanUltrasonicFlowmeterforCoalGasWangYinguan,SunQingde,YaoGuominandLiZhiliangAbstractTheultrasonicflowmeterforcoalgasisanothernewachievementinscientif