渣油加氫反應(yīng)前后瀝青質(zhì)分子結(jié)構(gòu)模擬

1、中國石油大學（華東）碩士學位論文渣油加氫反應(yīng)前后瀝青質(zhì)分子結(jié)構(gòu)模擬姓名：谷志杰申請學位級別：碩士專業(yè)：化學工程與技術(shù)指導(dǎo)教師：孫昱東201205Asphaltenemolecularsimulationpre—andpostresiduehydrotreatingGuZhijie(ChemicalEngineering&Technology)DirectedbyAssociateProfessorSunYudongAbstractFix

2、edbedresiduehydrotreatingisatypicalprocessoftheheavyoilupgradingwhosereaction夠pebelongstothecatalyticreactioncontrolledbydiffusionAndyettheaveragerelativemolecularweightofasphaltenesintheresidueishuge，theratioofhydrogent

3、ocarbonislowandheteroatomcontentisnumberousThenitsliabletoleadtothecokeformationandpoisoningofthehydrogenationcatalystandhinderthelongtermoperationofthehydrogenationplantRecentlytheresearchforasphaltenesinresiduehydrotre

4、atingmainlyfocusesontheinfluenceoftheasphaltenescontentonresiduehydrotreatingreactionsystemThepapersimulatedthereactionprocessoffixedbedresidehydrotreatingwithintheautoclaveandinspectedtheeffectsofreactionrequirementsOil

5、thedistributionofresidualoilproductaswellasitseachcomponentandthestructuralparameterschangeWehaveexploredXRD，IRand1HNMR，thephysicaltestinginstruments，tocharacterizeasphaltenesindetailbeforeandafterhydrogenation，combinedt

6、heelementalanalysisandtherelativemolecularweightdataandmadeuseofthecomputationalchemistrysoftwareChemWindowtoimitatethestructuralmodelofasphaltenesThedistributionresultsoftheresiduehydrotreatingreactionproductunderdiffer

7、entcircumstanceshowthathydrogenationisacatalyticreactionprocessinordercontrolledbydiffusionandalotofheataccompanieditreleaseThehydrogenationcatalystCansignificantlybetterthedistributionofhydrocrackingandthenatureofthecra

8、ckingreactionproducts，lowerthecrackinggasesaswell嬲inhibitthecondensationofthecokereactionoccurringFurthermore，thegreatertheporediameterandporediameterofcatalyst，thehighertheactiveingredientcontentandthecatalyticactivityI