摘要
采用等体积浸渍法,以水热改性氢氧化铝为载体,乙酸镍和七钼酸铵为活性组分,在120℃下干燥4 h,然后在马弗炉中于550℃下焙烧4 h,可制备预加氢硫醇醚化催化剂。在反应温度为100℃,反应压力为2.4 MPa,氢气/原料油(体积比)为7,液体体积空速为3.0 h-1的最佳条件下,以全馏分催化裂化(FCC)汽油为原料,对制备的预加氢硫醇醚化催化剂性能进行了评价。结果表明:FCC汽油的硫醇脱除率为97%,双烯脱除率为95%,研究法辛烷值提高了0.35个单位,烯烃减少体积分数为3.41%,预加氢前后汽油含总硫量基本不变。
The prehydrotreated mercaptan etherifi- cation catalyst was prepared by the volume impreg- nation method with hydrothermal modified aluminum hydroxide as carrier, nickel acetate and ammonium heptamolybdate as active components at 120℃ drying for 4 h,and then at 550℃ roasting for 4 h in a muffle furnace. The performance of prepared pre-hydrotreated mercaptan etherification catalyst was evaluated with full fraction catalytic cracking（FCC） gasoline as raw material at the optimum conditions of reaction temperature 100℃ , reaction pressure 2.4 MPa, hydrogen to oil （volume ratio） 7,liquid volume velocity 3 h^-1. The results showed that the removal rate of mercaptan in FCC gasoline was 97% ,dienes removal rate was 95% ,research octane number increased by 0.35 units,and the total sulfur content of FCC gasoline was essentially constant before and after prehydrotreatment.
作者
张永泽
向永生
杨博
李景锋
姚文君
刘蕾
谢元
高海波
ZHANG Yong - ze;XIANG Yong - sheng;YANG Bo;LI Jing - feng;YAO Wen - jun;LIU Lei;XIE Yuan;GAO Hai - bo(Lanzhou Petrochemical Research Center, PetroChina, Lanzhou 730060, Chin)
出处
《石化技术与应用》
CAS
2018年第3期171-173,共3页
Petrochemical Technology & Application
关键词
催化裂化汽油
预加氢硫醇醚化
硫醇脱除率
双烯脱除率
研究法辛烷值
catalytic cracking gasoline
prehydro-treated mercaptan etherification
mercaptan removalrate
dienes removal rate
research octane number
