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

被引：0

作者：

Chen, Junlin ^{[1
]}

Zhao, Jigang ^{[1
]}

Jiang, Hongbo ^{[1
]}

Chen, Wenbin ^{[2
]}

Qin, Kang ^{[2
]}

Shen, Benxian ^{[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,200237, China

[2] Research Institute of Petroleum Processing, SINOPEC, Beijing,100083, China

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2020年 / 39卷 / S2期

关键词：

C (programming language) - Catalyst activity - Crude oil - Heavy oil production - Temperature programmed desorption - 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.

引用

页码：221 / 226

共 50 条

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