Mo-Ni/Al_2O_3催化剂对FCC汽油硫醚化反应的催化性能  

Catalytic Performance of Mo-Ni/Al_2O_3 for Thioetherification of FCC Gasoline

作　　者：申志兵[1,2] 柯明[2] 张君涛[1] 张智平[1] 梁生荣[1] 

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]中国石油大学重质油国家重点实验室,北京102249

出　　处：《石油学报（石油加工）》2015年第6期1269-1274,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(21276276)资助

摘　　要：针对当前FCC汽油选择性加氢脱硫技术中的硫醚化反应催化剂的研究,利用FCC汽油评价了Mo-Ni/Al_2O_3催化剂的硫醚化反应催化性能,并进行了工艺条件优化和催化剂寿命评价。结果表明,Mo-Ni/Al_2O_3催化FCC汽油硫醚化反应的优化条件为反应压力2.5 MPa、空速4h^(-1)、H_2/油体积比3、反应温度130℃,在该条件下Mo-Ni/Al_2O_3催化FCC汽油硫醚化反应运转600h,硫醇转化率维持在95%以上,二烯选择性加氢率在100%,烯烃未发生加氢现象,辛烷值保持恒定。The thioetherification reaction is considered as the pretreatment step for the selective hydrogenation technology of FCC gasoline. The catalytic performance of Mo-Ni/A12O3 catalyst in thioetherification reaction was evaluated with FCC gasoline as feedstocks in a fixed bed reactor to find the optimal reaction conditions, and then, a long time test was carried on to study its stability. The results showed that the optimized reaction conditions for thioetherification were pressure of 2.5 MPa, space velocity of 4 h-1 , H2/oil volume ratio of 3 and temperature of 130℃, under which Mo-Ni/A12O3 catalyst could run 600 h with the mercaptans conversion keeping above 95 % and diene selective hydrogenation ratio of 100%, and no hydrogenation of olefins happening and the octane number of gasoline remaining.

关 键 词：硫醇醚化反应 二烯烃选择性加氢 辛烷值 Mo-Ni/Al2O3催化剂 

分 类 号：TE624[石油与天然气工程—油气加工工程]