催化裂化轻汽油碳五烯烃叠合工艺分析  

Process analysis on oligomerization of C olefins in FCC light gasoline

作　　者：余华 YU Hua(Lanzhou Sanye Industry Co.,Ltd.,Lanzhou 730060,China)

机构地区：[1]兰州三叶实业有限公司,甘肃兰州730060

出　　处：《现代化工》2021年第5期222-225,共4页Modern Chemical Industry

摘　　要：为满足国家推广使用乙醇汽油的要求,降低催化裂化轻汽油中烯烃含量,以强酸型阳离子树脂为催化剂,采用烯烃叠合工艺生产异构化烯烃,异构化烯烃的加氢产物作为汽油组分,生产出高辛烷值的叠合汽油。运行分析结果表明,叠合反应放热剧烈,控制反应温度是关键点,进而提高叠合的选择性;催化剂具有高的活性和稳定性;经叠合反应后,轻汽油的密度增加,饱和蒸汽压降低118 kPa,轻汽油的RON辛烷值提高约1.09个单位,终馏点可控制在195℃以内,生产出合格的叠合油满足车用汽油的需要。In order to meet China’s requirements of popularizing the use of ethanol gasoline and to reduce the olefins content in FCC light gasoline,isomerized olefins are produced by olefins oligomerization process with strong acid cation resin as catalyst.The hydrogenation products of the isomerized olefins are used as gasoline components to produce high octane number gasoline.Analysis on operation results shows that the oligomerization reaction releases heat severely,therefore controlling the reaction temperature is the key point to improve the selectivity of the oligomerization.The catalyst shows a high activity and a good stability.After the oligomerization reaction,the density of light gasoline increases,the saturated vapor pressure decreases by 118 kPa,and RON octane number increases by about 1.09 units.Final boiling point can be controlled within 195℃.In a sum,qualified oligomerization oil can be produced to meet the needs of vehicle gasoline.

关 键 词：轻汽油 碳五烯烃 叠合 工艺分析 

分 类 号：TE624[石油与天然气工程—油气加工工程]