Effects of liquefaction conditions on CO2 hydrate formation in porous media

被引：0

作者：

Zhang X. ^{[1
,2
]}

He G. ^{[1
,2
]}

Wang J. ^{[1
,2
]}

Li J. ^{[1
,2
]}

Wang Y. ^{[1
,2
]}

Wu Q. ^{[1
,3
]}

机构：

[1] School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou

[2] Key Lab of Complementary Energy System of Biomass and Solar Energy Gansu Province, Lanzhou

[3] Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou

来源：

Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2023年 / 37卷 / 04期

关键词：

CO[!sub]2[!/sub] hydrate; enhancement effect; formation rate; liquefaction condition; porous media;

D O I：

10.3969/j.issn.1003-9015.2023.04.011

中图分类号：

学科分类号：

摘要：

In order to study affecting mechanism of liquefaction conditions on CO2 hydrate formation, this process was investigated in porous media (particle size is about 700 μm) with initial pressures of 3.9, 4.2, 4.5, 4.8 and 5.1 MPa and temperatures of 273.5, 274.5 and 275.5 K, respectively. The results show that the formation rate of CO2 hydrate gradually increases with the increase of initial pressure under the same temperature. When the pressure was lower than the liquefaction pressure, the formation rate gradually increased with the increase of initial pressure, and the trend was more obvious under higher temperatures. When the pressure reached CO2 liquefaction pressure, the formation rate increased obviously with the increase of initial pressure. The maximum formation rate obtained was 9.297×103 mol's1 in porous media. Moreover, liquefaction can effectively strengthen the formation process of CO2 hydrate in porous media and increase the formation rate. © 2023 Zhejiang University. All rights reserved.

引用

页码：599 / 607

页数：8

共 33 条

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