石油炼制与化工 ›› 2016, Vol. 47 ›› Issue (5): 51-56.

• 催化剂 • 上一篇    下一篇

油溶性催化剂在渣油悬浮床加氢反应中的加氢抑焦作用

杨涛1,黄传峰1,邓文安2   

  1. 1. 陕西延长石油(集团)有限责任公司碳氢高效利用技术研究中心
    2. 中国石油大学(华东)重质油国家重点实验室
  • 收稿日期:2015-09-21 修回日期:2015-10-24 出版日期:2016-05-12 发布日期:2016-04-25
  • 通讯作者: 邓文安 E-mail:dengwenan@upc.edu.cn

HYDROGENATION ACTIVITY AND COKE RESTRAINING ABILITY OF OIL-SOLUBLE CATALYSTS FOR RESIDUE SLURRY-BED HYDROCRACKING

  • Received:2015-09-21 Revised:2015-10-24 Online:2016-05-12 Published:2016-04-25

摘要:

合成了油溶性Mo、Ni催化剂,并将两种单金属催化剂进行复配形成Mo/Ni复配催化剂,采用FT-IR、AAS分析方法对合成催化剂进行表征,在考察Mo、Ni及Mo/Ni复配催化剂油溶性的基础上,对不同催化剂在KLAR悬浮床加氢反应中的加氢效果进行考察,并与临氢热烈化反应结果进行对比。结果表明:Mo、Ni催化剂中的活性组分Mo、Ni质量分数分别为5.60%、5.86%;Mo、Mo/Ni、Ni催化剂的I值(单位生焦轻油收率)逐渐降低,说明它们的加氢抑焦效果依次减弱;而且Mo/Ni复配催化剂表现出了一定的协同效应,其在KLAR悬浮床加氢反应中可以成为生焦载体,延缓焦粒的富集、长大。

关键词: 油溶性催化剂, 悬浮床加氢, 加氢活性, 抑焦作用

Abstract:

Oil-soluble Mo and Ni catalysts applied in residue slurry-bed hydrocracking have been successfully synthesized and Mo/Ni catalyst has been obtained from the mixtures of these two kinds of monometallic catalysts. FT-IR and ASS analysis were used to characterize the properties of synthesized catalysts. Compared with thermal cracking in presence of hydrogen, KLAR slurry-bed hydrocracking was carried out, after the solubility study of Mo, Ni and Mo/Ni catalysts, to evaluate the hydrogenation activity of all catalysts. The results indicated Mo content was 5.60% in Mo catalyst and Ni content was 5.86% in Ni catalyst, respectively. The order of I (light oil yield per coke) was Mo>Mo/Ni>Ni, which meant the order of hydrogenation activity and coke restraining ability was Mo>Mo/Ni>Ni. Furthermore, Mo/Ni catalysts not only played a synergistic effect in hydrogenation activity but also could act as coke carrier and prevented the coke from gathering and growing.

Key words: oil soluble catalysts, slurry-bed hydrocracking, hydrogenation activity, coke restraining ability