化工进展 ›› 2019, Vol. 38 ›› Issue (07): 3163-3169.DOI: 10.16085/j.issn.1000-6613.2018-1833

• 工业催化 • 上一篇    下一篇

Ce浸渍方式对CoMo/CeAl2O3催化剂反应性能影响

王奇1,柯明1(),于沛2,刘洋1,张蕾1,夏成杰1,刘稳1   

  1. 1. 中国石油大学(北京)重质油国家重点实验室,北京 102249
    2. 黄淮学院,河南 驻马店463000
  • 收稿日期:2018-09-11 出版日期:2019-07-05 发布日期:2019-07-05
  • 通讯作者: 柯明
  • 作者简介:王奇(1992—),男,硕士研究生,研究方向为清洁油品的生产。
  • 基金资助:
    国家自然科学基金(21776303)

Effect of impregnation way of Ce on the performance of CoMo/CeAl2O3 catalysys in hydrodesulfurization

Qi WANG1,Ming KE1(),Pei YU2,Yang LIU1,Lei ZHANG1,Chengjie XIA1,Wen LIU1   

  1. 1. State Key Laboratory for Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
    2. Huanghuai University, Zhumadian 463000, Henan, China
  • Received:2018-09-11 Online:2019-07-05 Published:2019-07-05
  • Contact: Ming KE

摘要:

针对具有较高脱硫活性的CoMo/CeAl2O3催化剂,考察了Ce的不同浸渍方式对催化剂表面金属性质及催化活性的影响。结果表明,Ce采用不同浸渍方式(CoMo共浸渍)制备催化剂的加氢脱硫活性大小顺序为:先浸渍Ce后浸渍CoMo催化剂(CoMoCe/Al2O3)>先浸渍CoMo后浸渍Ce催化剂(CeCoMo/Al2O3)>Ce与载体混粘后浸渍CoMo催化剂(CoMo/CeAl2O3)。对于CoMoCe/Al2O3催化剂,先浸渍Ce减弱了二次浸渍CoMo时载体与Mo物种间的相互作用力,有利于Mo物种硫化,提高了硫化度,生成了较多的CoMoS活性相,增加了脱硫率;用实验室自组装固定床微型反应装置对CoMoCe/Al2O3催化剂进行了活性评价,以广西石化分公司(广西石化)重馏分油(≥65℃)为原料油时,产物硫含量可以降至8.6μg/g,RON损失1.3个单位。

关键词: 加氢脱硫, 铈, 浸渍方式, 载体, 活性

Abstract:

Series CoMo/CeAl2O3 catalysts were prepared by using different impregnation way of cerium and their performance in hydrodesulfurization was investigated. The results showed that the activity of the catalysts is in the following order CoMoCe/Al2O3>CeCoMo/Al2O3>CoMo/CeAl2O3. For the CoMoCe/Al2O3 catalyst, cerium was loaded on the Al2O3 at the first stage and thus can weaken the interaction between molybdenum and supporter, and are helpful for the sulfurization of molybdenum, which can promote the formation of CoMoS active phase and then enhance the catalytic performance of CoMoCe/Al2O3 in hydrodesulfurization. Heavy gas oil from Guangxi Petrochemical Company was processed with the CoMoCe/Al2O3 catalyst in a self-made fixed-bed micro reactor and the sulfur content of the product was reduced to 8.6μg/g, and the RON loss was 1.3.

Key words: hydrodesulfurization, cerium, impregnation way, supporter, reactivity

中图分类号: 

京ICP备12046843号-2;京公网安备 11010102001994号
版权所有 © 《化工进展》编辑部
地址:北京市东城区青年湖南街13号 邮编:100011
电子信箱:hgjz@cip.com.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn