浅析川西北MCRC硫磺回收装置的腐蚀与防护措施

MCRC1121(1.2.),,DOI:10.3969/j.issn.1007-3426.2009.01.0121988,MCRC19904,(H2SSO2CO2CS2COS)[1],,,1MCRC[2]MCRC,,H2S64CHEMICALENGINEERINGOFOIL&GAS2009SO2,MCRC,12MCRC19904,20084#,2.1,,,,399H2SSO2428538,FeS,[1],2,SO2SO3,SO3H2SO4,SO2,SO2H2SO3,[1],,34,20061624,4,2.03.0mm2.2MCRC,/(HT-1603)2008,A,60%105;10%,;30%,9;/,,45%,,,;,,;1#2#310,;,,,,,2.374381MCRCH2SCO2,,,,H2SSO2CO2,,,,3[1][4][5]3.1,,,,,,H2S,250300,H2S,FeS,H2S,H+HS-S2-H2S,,,FeS,FeS,,,:Fe-2eFe2+2H++2eHad+HabH2Hab-:Had;HabFe2+H2S():xFe2++yS2-FexSy(FexSy),FexSyFeSFeS2Fe3S4Fe9S8,pHH2SFexSy,,;FeSFeS2,(),CO2SO2H2S,CO2SO2,CO2,CO2,SO2,160,,,,SO2,3.2310,[1],1000,:Fe+H2SH2+FeSFe+SFeS,,,,,//,,,FeO-Fe3O4-Fe2O3,,,12,O2,CO2H2OSO2,,3.3H2SSO2CO2SO3,84CHEMICALENGINEERINGOFOIL&GAS20093%,120150;10%,140240::SO2+O2SO3+Q:SO3+H2OH2SO4+QSO2+H2OH2SO3+Q2Fe+3H2SO4Fe2(SO4)3+3H22Fe+3H2SO3Fe2(SO3)3+3H2,SO3,400,SO3,(),,,1040,1602503.4,,(),,H2SS,FeS;,FeSO2H2OH2SxO5(x345,H2S4O5,):4FeS+5O2+H2O2Fe2O3+H2S4O54[1][5-7],,,,,4.11#2#,2006321(1Cr18Ni9Ti),2008,(),,200810%,4.2,MCRC,:(1),,,;(2)942H2S/SO2,942H2S/SO2,SO2,1%,,,(3)310,;550600(4),,Cl-10mg/L,10s/cm,4.3,,,,(,80),,94381MCRC600650HB200(HRC22),[3],4.4,,(),,,,SO2H2S,(),4.5,,,,,;,5,,,,1.(1).:,1996,3:2292402.MCRC(),3,,.(1),:,2004,12:2773044,.(1).:,1991,12:1451705.()(1).:,1984,10:4355666,,..[J],2006,35(2):110-1137,..[J],2006,35(6):453-4548,..[J],2007,27(12):136-138:1973,1997,,E-mail:[e-mail]:2008-08-07;:2008-09-22;:(30)MDEA/DEA,5%[8],H2SCO2(23)1..:,20052,,.CO2.,2006,35(2):1171183,..,2006,35(5):3643674PoseyMandRochelleGT.ANonrandomtwo-liquidmodelforal2kanolaminesystems,PresentedattheAIChEspringnationalmeeting,NewOrleans,February,1996:25295PatrickJGet.al.Acomparisonofdifferentmodelsforthepredictionofacidgassolubilityinalkanolaminesolution,Theproceedingsoflaur2ancereidgasconditioningconference,2006:2376J.Schwarzentruberetal.Developmentofanewequationofstateforphaseequilibriumcalculation.FluidPhaseEquilibrium,1989,52:1277ChenCCetal.Thermodynamicrepresentationofphaseequilibriaofmixed-solvent8RinkerEB,AshourSSetal.Acidgasabsorptioninaqueoussolutionsofmixedamines,Proceedingsofthe75thGPAAnnualConvention,Tulsa,Oklahoma,1996:1029MacGregorRJetal.EquilibriumsolubilityofH2SandCO2andtheirmixturesinamixedsolvent,TheCanadianJ.ofChem.Eng.,1991,69(12):135710.H2SCO2.,1992,21(10):67711..:,199712,,..[J],2007,27(10):120-122:2008-12-30;:05CHEMICALENGINEERINGOFOIL&GAS2009ENGINEERINGOFOIL&GAS,VOL.38,NO.1,pp3133,2008(ISSN1007-3426,INCHINESE)Abstract:Inthispaper,thedieseldesulfuriza2tionsimulationsystemconsistsofceriumsulfateandhydrochlorideasoxidant,DMFasextractionsolvent,andthepetroleumetherwithacertainamountofdibenzothiophene.Theoptimaldesulfurizationcondi2tionshavebeenobtainedbyorthogonalexperiment:pHis1,theamountofceriumsulfateis0.008g/mLdiesel,thereactivetemperatureis30,thetimeis50min,thevolumeratioofhydrochlorideanddieselis45.Bythevaluationofmodelparametersandcurvefitting,thereactionorderisobtainedas1.3,andreac2tiondynamicsequationsunderoptimalconditionsareobtainedaswell.Ce4+asoxidationmediumcouldbeusedagainthroughelectrochemicalrecyclingmethods,whichhasoptimaleconomicbenefitsandcanmeetthedevelopmenttrendofgreenchemistry.Keywords:DMF,petroleumether,dibenzothio2phene,curvefittingTheImpactoftheOxidationCatalyticSystemontheCompositionandViscosityofHeavyOilZhengYancheng,ChenQi,WangRenfang,etal(YangtzeUniversity,Jingzhou430423).CHEMICALENGINEERINGOFOIL&GAS,VOL.38,NO.1,pp3438,2008(ISSN1007-3426,INCHINESE)Abstract:OxidativedegradationreactionoftheNanyangwaterheavycrudeoilisstudiedbytransitionmetalfattysaltascatalyst,tert-butyletherperoxideandprotondonorbeingaddedintothereaction.Thea2cidityandbasicityofthecatalystsolution’sandreactiontemperature,timeandcatalystcontentimpactontheheavyoilviscosityandcompositionafterreactionisstudied.Theheavyoilafterreactionisneutralizedbyalkali,thealkali’simpactontheheavyoilisdiscussedaswell.ThetestofTLC-FIDfractioncompositionshowsthatthecolloidintheheavyoildecreasesby20%inlowertemperature,thecontentofaromatichy2drocarbonandsaturatedhydrocarbonincreasesby38%and13%respectively,andtheasphalteneincreasesby2.5%,theheavyoilviscositydecreasesfrom58Pasto27Pas,andtheacidvalueincreasesfrom2.2mgKOHg-1to13.5mgKOHg-1.Underthecondi2tionof120,16h,theviscositydeceasesto800mPasandtheviscosityreductionratioisabove99%,whenadding0.5%-1.2%NaOHintotheheavyoilafterthecatalyticreaction,andthelowestviscosityoftheheavyoilbyaddedalkalibeforereactionis5000mPas.So,itisofgreatimportancefortheheavyoilexploitationtoreducereactiontemperaturegreatlybyoxidationcatalysisappropriatlyandchangethefluidityoftheheavyoil.Keywords:heavyoil,viscosityreduction,cata2lyzedoxidativedegradation,fractioncompositionTheTechnicalSurveyandDiscussiononCO2Re2coveryfromClausPlantTailGasinJinbianNatu2ralGasFieldZhaoYujun1,CaoQinliang2,JiangXiaojiang3,etal(1.ChangqingOilFieldFirstGasRecoveryFactory;2.TheChangqingOilFieldPacifiesBorderRegionstheGasPowerPlant;3.Xi’anPetroleumUniversity).CHEMICALENGINEERINGOFOIL&GAS,VOL.38,NO.1,pp3942,2008(ISSN1007-3426,INCHI2NESE)Abstract:Thispaperdiscusse