Simultaneous desulfurization and denitrogen of liquid fuels using two functionalized group ionic liquids  

作　　者：NIE Yi GONG Xue GAO Hong Shuai ZHANG Xiang Ping ZHANG Suo Jiang 

机构地区：[1]Beijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences [2]College of Chemistry and Chemical Engineering, Qufu Normal University

出　　处：《Science China Chemistry》2014年第12期1766-1773,共8页中国科学（化学英文版）

基　　金：supported by the Special Funds of the National Natural Science Foundation of China(21127011);the National Natural Science Foundation of China(21076113,21206169);National Basic Research Program of China(2013CB733506)

摘　　要：Deep desulfurization of liquid fuels is an important and challenging issue in worldwide petroleum refining industry.Extraction and catalytic oxidative desulfurization(ECODS)of liquid fuels using a series of ionic liquids(ILs)with two functionalized groups,such as[(CH2)2COOHmim]Cl/n Fe Cl3,[(CH2)2COOHmim]Cl/n Zn Cl2,and[Amim]Cl/n Fe Cl3,was studied.In the ECODS,the ILs were used as both extractant and catalyst and 30 wt%hydrogen peroxide(H2O2)solution as oxidant.The effects of molar ratios of[(CH2)2COOHmim]Cl(or[Amim]Cl)to Fe Cl3(or Zn Cl2)in ILs,H2O2/sulfur(O/S)molar ratio,reaction temperature,and the nature of sulfur compounds on sulfur removal were investigated.The natures of the functional groups(–COOH,–CH2–CH=CH2)in cations and the acid strength of anions play important roles in the ECODS and affect the reaction time,temperature,and desulfurization efficiency of different substrates.Also,nitrogen-containing compounds(pyridine,pyrrole,and quinoline)could be removed simultaneously in the ECODS and had different effects on dibenzothiophene removal.Deep desulfurization of liquid fuels is an important and challenging issue in worldwide petroleum refining industry.Extraction and catalytic oxidative desulfurization（ECODS）of liquid fuels using a series of ionic liquids（ILs）with two functionalized groups,such as[（CH2）2COOHmim]Cl/n Fe Cl3,[（CH2）2COOHmim]Cl/n Zn Cl2,and[Amim]Cl/n Fe Cl3,was studied.In the ECODS,the ILs were used as both extractant and catalyst and 30 wt%hydrogen peroxide（H2O2）solution as oxidant.The effects of molar ratios of[（CH2）2COOHmim]Cl（or[Amim]Cl）to Fe Cl3（or Zn Cl2）in ILs,H2O2/sulfur（O/S）molar ratio,reaction temperature,and the nature of sulfur compounds on sulfur removal were investigated.The natures of the functional groups（–COOH,–CH2–CH=CH2）in cations and the acid strength of anions play important roles in the ECODS and affect the reaction time,temperature,and desulfurization efficiency of different substrates.Also,nitrogen-containing compounds（pyridine,pyrrole,and quinoline）could be removed simultaneously in the ECODS and had different effects on dibenzothiophene removal.

关 键 词：ionic liquids DESULFURIZATION denitrogen FUEL 

分 类 号：TE626.2[石油与天然气工程—油气加工工程]