石油炼制与化工 ›› 2012, Vol. 43 ›› Issue (4): 41-45.

• 基础研究 • 上一篇    下一篇

操作条件对催化裂化汽油催化精馏选择性加氢脱二烯过程的影响

张艳云1,张学军2,梁迁1,侯凯湖1   

  1. 1. 河北工业大学化工学院
    2. 中国石油石油化工研究院
  • 收稿日期:2011-08-02 修回日期:2011-10-08 出版日期:2012-04-12 发布日期:2012-03-29
  • 通讯作者: 侯凯湖 E-mail:khou@hebut.edu.cn

INFLUENCES OF OPERATING CONDITIONS ON THE SELECTIVE HYDROGENATION OF FCC GASOLINE FOR DIOLEFINS REMOVAL BY CATALYTIC DISTILLATION

  • Received:2011-08-02 Revised:2011-10-08 Online:2012-04-12 Published:2012-03-29

摘要: 采用选择性加氢/硫醚化NiMo/Al2O3催化剂,在催化精馏实验装置上考察了氢油体积比、体积空速、反应压力和回流比对催化裂化汽油催化精馏选择性加氢脱二烯过程塔顶轻馏分性质的影响。实验结果表明:较为适宜的操作条件为压力0.70 MPa左右、反应段温度140 ℃左右、回流比2、体积空速3 h-1、氢油体积比10;在此条件下,塔顶轻馏分的总硫质量分数小于20 μg/g、硫醇硫质量分数小于2 μg/g,二烯脱除率大于60%。

关键词: 操作条件 , 催化精馏, FCC汽油, 选择性加氢 , 脱二烯

Abstract: Experiments for the selective hydrogenation of FCC gasoline were carried out in a lab catalytic distillation unit using a NiMo/Al2O3 catalyst for selective hydrogenation and diene thioetherfication. The effects of H2/oil volume ratio, LHSV, reaction pressure and reflux ratio on the properties of light fraction obtained from the tower top were investigated. Under the optimum conditions of a reaction pressure of 0.70 MPa, a reaction temperature of about 140 ℃, a reflux ratio of 2, LHSV of 3 h-1 and H2/oil volume ratio of 10, the obtained light fraction had a total sulfur content of less than 20 μg/g, a mercaptan sulfur content of less than 2 μg/g and the removal rate of diolefins was more than 60%.

Key words: operation condition , catalytic distillation, FCC gasoline, selective hydrogenation, diolefins removal

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