Adsorption behavior of thiophene on Co-Mo/γ-Al2O3 catalyst by in-situ IR

被引：0
|
作者：
Chen J. [1 ]
Zhao J. [1 ]
Jiang H. [1 ]
Chen W. [2 ]
Qin K. [2 ]
Shen B. [1 ]
机构：
[1] International Joint Research Center for Green Energy Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai
[2] Research Institute of Petroleum Processing, SINOPEC, Beijing
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2020年 / 39卷 / S2期
关键词：
adsorption; catalyst; Co-Mo/γ-Al[!sub]2[!/sub]O[!sub]3[!/sub; HDS; in-situ IR; sulfurization; thiophene;
D O I：
10.16085/j.issn.1000-6613.2020-0413
中图分类号：
学科分类号：
摘要：
Against the background of declining heavy oil quality and rising diesel sulfur standards, in order to improve hydrodesulfurization catalysts and production processes, the in-situ IR was used to study the sulfurization behavior of Co-Mo/γ-Al2O3 catalyst whose industrial direct desulfurization activity is higher and adsorption behavior of thiophene. Co-Mo/γ-Al2O3 catalyst surface was sulfided at 320℃, and during thiophene-temperature programmed desorption on sulfided catalyst, the thiophene adsorption characteristic peaks at 1558cm-1 (C C vibration) and 1413cm-1 (C H vibration) disappeared at 250℃(π complex adsorption); peaks at 1679, 1575cm-1 (C C vibration) and 1396cm-1 (C H vibration) disappeared at 350℃(M-S adsorption), but peaks at 1537cm-1, 1513cm-1 (C C vibration) and 1338cm-1 (C H vibration) strengthened (π complex adsorption). This clarifies the relationship between adsorption mode and desorption temperature of thiophene, which provides experimental data support for the design and development of higher activity catalysts. © 2020, Chemical Industry Press Co., Ltd.. All rights reserved.
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页码：221 / 226
页数：5
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