石蜡基柴油馏分的加氢异构化反应研究  

HYDROISOMERIZATION OF PARAFFINIC BASED DIESEL FRACTION

作　　者：许孝玲 张景伟 魏军 王华[2] Xu Xiaoling;Zhang Jingwei;Wei Jun;Wang Hua(China University of Petroleum Beijing at Karamay ,Karamay,Xinjiang;PetroChina Karamay Petrochemical Company)

机构地区：[1]中国石油大学(北京)克拉玛依校区,新疆克拉玛依834000 [2]中国石油克拉玛依石化公司

出　　处：《石油炼制与化工》2018年第6期33-36,共4页Petroleum Processing and Petrochemicals

基　　金：中国石油大学(北京)克拉玛依校区校级科研项目(RCYJ2016B-02-003)

摘　　要：以石蜡基柴油馏分为原料,采用固定床加氢中试装置考察了加氢异构催化剂在不同工艺条件下的反应性能。结果表明:在一定范围内随着反应温度的提高,异构化反应和裂化反应程度持续增加;提高反应压力或空速,均不利于异构化和裂化反应的进行;反应压力提高,柴油的异构化反应活性降低,但可通过提高反应温度达到同样的降凝效果并且保持柴油馏分的收率变化不大。与催化脱蜡技术相比,在柴油馏分凝点接近时异构脱蜡所得柴油馏分的收率和十六烷指数明显较高。Hydroisomerization of paraffinic base diesel fraction over a hydroisomerization catalyst was conducted in a fixed-bed reactor of pilot plant under different conditions.Results indicated that within a certain temperature range the hydroisomerization reaction and hydrocracking reaction are increased with increasing reaction temperature.While the hydroisomerization reaction and hydrocracking reaction is suppressed as the reaction pressure or space velocity increases.Although the hydroisomerization activity decreases with increasing reaction pressure,the same solidification point reduction can be reached by raising reaction temperature.While the yield of diesel fraction changes a little.Compared with catalytic dewaxing,the yields and cetane index of diesel are significantly higher in the case of hydrodewaxing when the solidification point of diesel fraction is close.

关 键 词：石蜡基 柴油 异构脱蜡 催化脱蜡 凝点 

分 类 号：TE624[石油与天然气工程—油气加工工程]