Catalytic pyrolysis of oil shale by CrCl3 and its molecular simulation mechanism

被引：1

作者：

Sun J. ^{[1
,2
]}

Hou Q. ^{[1
]}

Lü K. ^{[1
]}

Jin J. ^{[1
]}

Guo X. ^{[1
]}

Wang J.

Huang X. ^{[1
]}

Liao B. ^{[1
]}

机构：

[1] School of Petroleum Engineering in China University of Petroleum (East China), Qingdao

[2] CNPC Engineering Technology R & D Company Limited, Beijing

来源：

Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science) | 2023年 / 47卷 / 01期

关键词：

catalytic pyrolysis; CrCl[!sub]3[!/sub; in-situ conversion; molecular simulation; oil shale;

D O I：

10.3969/j.issn.1673-5005.2023.01.007

中图分类号：

学科分类号：

摘要：

In-situ conversion is a key technology to achieve large-scale development of deep oil shale. Its principle is to convert solid organic matter underground into oil and gas by artificial heating. In this study, the effects of transition metal salt catalyst CrCl3 on the catalytic performance of oil shale were systematically studied by thermogravimetric analysis and high temperature pyrolysis experiments. The pyrolysis products of shale oil were analyzed by GC-MS, and their adsorption behavior in the oil shale layer was studied by molecular simulation. The results show that, with the addition of CrCl3, the pyrolysis temperature of oil shale can be reduced by about 50 ℃, and its pyrolysis activation energy can be reduced by 44. 4% from 80. 18 kJ/ mol to 44. 58 kJ/ mol. CrCl3 can reduce the oil production temperature and increase the oil production rate by 6. 3%. CrCl3 has an excellent pyrolysis catalytic activity of oil shale, and can promote the cracking of long-chain aliphatic hydrocarbons into short-chain hydrocarbons, which can facilitate the pyrolysis of organic matters in oil shale for hydrocarbon generation and transformation. © 2023 University of Petroleum, China. All rights reserved.

引用

页码：74 / 80

页数：6

共 28 条

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