碳五原料脫硫技術(shù)研究

1、天津大學碩士學位論文碳五原料脫硫技術(shù)研究姓名：趙英武申請學位級別：碩士專業(yè)：化學工程指導教師：陳吉祥王福善20081201Abstractc5fractionisthebyproductinthepyrolysisofpetroleumhydrocarbonforproducingethyleneItcomprisesmorethantwentycomponentsinwhichisoprene(IP)，cyclopentadiene(

2、CPD)andpiperylene(PIP)arethemostimportantcomponentsInordertousethepetroleumefficientlyanddecreasetheproductioncostofethene，theutilizationofcrackingC5fractionisanimportantwayWiththecomplexityofcrudeoilcompositions，thecont

3、entofsulfurcompoundsinpetroleumhydrocarbonsincreasesThesulfurcompoundspoisonseverelycatalysts(forexamplenoblemetals)usedinthehydrogenationofC5fractionTherefore，itisofsignificantfordevelopingdesulfurizationprocessInthispa

4、per，therecentprogressindesulfurizationtechnologieshasbeenreviewed，particularlyintheremovalofsulfurfromliquidhydrocarbonsAlthoughhydrodesulfurization(HDS)caneffectivelyremovethemajorityofsulfurcontainingcompoundsitisdiffi

5、culttoachievetheultra—deepdesulfurizationAlternativetechnologies，suchasadsorption，oxidationandbioprocess，arebeingexploredforthedeepdesulfurizationThesulfidescanbeselectivelyremovedfromC5olefinhydrocarbonsusingtheadsorpti

6、onmethodThecompositionofthetherawmaterialcrackedCsfractioninLanzhouhasbeenanalysedThecontentsofisoprene，piperylenelandCPD／DCPDale10％20％，0％17％and15％17％，respectivelyThesesthreealkeneshavetheamountof4055％incrackedC5fraction

7、TheorganicsulfurcompoundsinC5olefinhydrocarbonswereanalyzedandidentifiedbygaschromatographyplusflamephotometricdetection(GCPFPD)TherelativestandarddeviationsanalyzedbyGCPFPDarelessthanthosebymicrocoulometricdetector，indi

8、catingthatGCPFPDmethodcanmeettherepeatabilityandbeusedforthedeterminationsulfurcompoundsinC5qualitativelyandquantitativelyAnalyzedbyGC_PFPD，themajortypeofsulfurcontainingcompoundsinC5isthiophene，followedbyalkylsulfideand

9、mercaptanTheMainreasonforthecatalystdeactivationwasalsoinvestigatedIthasbeenfoundthattheoligomersformedbyoligomerizationofdienesandalkinesintherawmaterialscovertheactivesitesofthecatalyst，whichcanaccountforthecatalystdea