como系claus尾氣加氫脫硫催化劑的研究

1、武漢理工大學(xué)碩士學(xué)位論文CoMo系Claus尾氣加氫脫硫催化劑的研究姓名：趙萱申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：應(yīng)用化學(xué)指導(dǎo)教師：雷家珩王國(guó)興20060501ABSTRACTT1leindustrialmethodforsulfurrecoveryisClausprocesskindsofsulfidespeciesarecontainedintheC1austailgas，whichcannotmeetthenationalemissionst

2、andarduntilitistreatedSohydrodesulfurizationfortheClaustailgasisallimportanttopicinpetroleumthemicalindustrySCOTprocessisempleyedtotreatthegasforconvertingsulfurdioxideintohydrogensulfideinmostofChinesesulfurrecoveryfact

3、orieshlsuchprocessthereportedoperatingtemperatureforthehydrogenationcatalystis250300℃，thoughactualtemperature括3∞℃。墨囊etemperatureofthetailgasfromsulfurrecoverydeviceisusually120130℃SotheC1austailgashastobeheatedtoreachthe

4、catalyticreactiontemperaturebefofehydrogenationreactionWhenthecatalyticreactioniscompletedthetailgasshouldbecooledbelOW42℃beforeintakingtheabsorptionuniteThereforeitiSofrealisticimportanceteducetheoperatingtemperatureofs

5、uchhydrodesulfurizationcatalyst。CoMo／A1203catalystisCOmmoninsulfurdioxidehydrodesulfurizationreactionoInpresentworkwedesignedandbuiltacatalystevaluationsystemandstudiedtheinfluenceofthemainactivecomponents，theirbestamoun

6、t，supports，preparingskilloncatalyticactivityWbobtainedthecatalystwithoperatingtemperaturebelow300℃@羽罅experimentshowsthatMoS2isthemainactivecomponent。CoSUlfidespeciesalsohavesomeactivitybutaremainlyresponsibleforbetterdis

7、persionofM0speciesonthealuminasurface，髂aresult，moreactivecenterscanbeformed。國(guó)ThepriorformationofMoS2canenhancethecatalyticactivitywiththesameCoOandMe03amountTheoptimumcatalystinourworkContains1015％M003and15％CoO，whichc程co

8、nvert100％S02intoH2Sin280℃固A1203、麓02andSi02ascatalystsupportsarealsoinvestgatedTheresultshowsthatCoMo／Ti02catalysthasalowercatalyticacfivitythanCoMo／A1203，andthenCoMo／Si02catalysthasa10WS02conversionbutaexcellent玨2Sselect

9、ivityatlowtemperatureAspreparedcatalystswascharacterizedbyXRDtechnique。TheresultshowsthatM003candispersewellwhenitsloadingcapacityisbelow135％。buttheaggregationofM003causeobviousreductionofcatalyticactivityoncebeyond135％。