文献类型：期刊文献

中文题名：催化裂化汽油中乙腈萃取脱硫的研究

英文题名：Desulfurization of Fluid Catalytic Cracking Gasoline by Extraction with Acetonitrile

作者：王磊[1];沈本贤[1]

机构：[1]华东理工大学化工学院

年份：2008

卷号：34

期号：1

起止页码：36

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：20081311171208);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：乙腈;萃取;脱硫;萃取平衡线;动力学

外文关键词：acetonitrile; extraction; desulfurization; extraction balance line; dynamics

摘要：以乙腈为萃取剂，在正辛烷中加入少量噻吩构成汽油模拟体系，考察了稀释剂含量、剂油比、温度对脱硫率和分配系数的影响。实验结果表明：采用溶剂乙腈脱除催化裂化（FCC）汽油中的硫化物是可行的，乙腈是一种较好的萃取剂。建立了在模拟体系中噻吩的萃取动力学方程：r表观=56．1×e^（-16.1/T）CA以及不同温度和不同稀释剂含量下的萃取平衡线。模拟体系萃取脱硫适宜的条件为稀释剂体积含量1％～3％，剂油质量比0．8～1．2，萃取温度为常温。在该条件下对催化裂化汽油进行萃取精制，精制汽油硫含量达到欧Ⅳ标准。
A model system of fluid catalytic cracking（FCC） gasoline was established by adding thio- phen to octane. Influences of solvent/oil ratio, dilluent content and temperature on desulfurization and distribution coefficient were investigated. The results show that acetonitrile is a good exaction in the model system of FCC gasoline; the diluent content, solvent/oil ratio and temperature are the major factors which affect the desulfurization and the distribution coefficient; the extraction balance lines and exaction-desulfurization dynamics are also investigated and the equation rapparent ：56. 1 e^（-16.1/T） cA is obtained. A diluent content of 1%~3%0, solvent/oil ratio 0.8-1.2 and room temperature are approved to be the optimum conditions for the model. Finally, the effect of solvent/oil ratio on desulfurization is investigated. The results indicate the sulfide concentration in refinning oil meet Europe Ⅳ standards.