Methane hydrate formation and dissociation behaviors in montmorillonite

Kefeng Yan; Xiaosen Li; Zhaoyang Chen; Yu Zhang; Chungang Xu; Zhiming Xia

doi:10.1016/j.cjche.2018.11.025

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Methane hydrate formation and dissociation behaviors in montmorillonite

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Methane hydrate formation and dissociation behaviors in montmorillonite
- Methane hydrate formation and dissociation behaviors in montmorillonite
- 中国化学工程学报（英文版） 2019年27卷第5期页码：1212-1218
- Affiliations：
  
  1. Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences,Guangzhou,China,510640
  2. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou,China,510640
  3. University of Chinese Academy of Sciences,Beijing,China,100049
  4. Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences,Guangzhou,China,510640
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.11.025
  中图分类号：
- 纸质出版：2019
- Accepted：
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Kefeng Yan, Xiaosen Li, Zhaoyang Chen, 等. Methane hydrate formation and dissociation behaviors in montmorillonite[J]. 中国化学工程学报（英文版）, 2019,27(5):1212-1218.

Kefeng Yan, Xiaosen Li, Zhaoyang Chen, Yu Zhang, Chungang Xu, Zhiming Xia. Methane hydrate formation and dissociation behaviors in montmorillonite[J]. Chinese Journal of Chemical Engineering, 2019, 27(5): 1212-1218.
Kefeng Yan, Xiaosen Li, Zhaoyang Chen, 等. Methane hydrate formation and dissociation behaviors in montmorillonite[J]. 中国化学工程学报（英文版）, 2019,27(5):1212-1218. DOI： 10.1016/j.cjche.2018.11.025.

Kefeng Yan, Xiaosen Li, Zhaoyang Chen, Yu Zhang, Chungang Xu, Zhiming Xia. Methane hydrate formation and dissociation behaviors in montmorillonite[J]. Chinese Journal of Chemical Engineering, 2019, 27(5): 1212-1218. DOI： 10.1016/j.cjche.2018.11.025.

摘要

Abstract

The methane hydrate formation and the methane hydrate dissociation behaviors in montmorillonite are experimentally studied. Through the analyses of the microstructure characteristic

the study obtains the porous characteristic of montmorillonite. It is indicated that methane hydrate in montmorillonite forms the structure I (sI) crystal. Meanwhile

molecular dynamics simulation is carried out to study the processes of the methane hydrate formation and the methane hydrate dissociation in montmorillonite. The microstructure and microscopic properties are analyzed. The methane hydrate formation and methane hydrate dissociation mechanisms in the montmorillonite nanopore and on the montmorillonite surface are expounded. Combining the experimental and simulating analyses

the results indicate the methane hydrate formation and methane hydrate dissociation processes have little influence upon the crystal structure of porous media from either micro-or macro-analysis. It is beneficial to the fundamental researches on the exploitation and security control technologies of natural gas hydrate in deep-sea sediments.

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