Research progress on comprehensive utilization and cascade upgrading of full-concentration coalbed methane

LI Xiaomin; ZHOU Yang; LI Shishuai; YANG Jiangfeng; LI Jinping

doi:10.11949/0438-1157.20260573

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Research progress on comprehensive utilization and cascade upgrading of full-concentration coalbed methane

更新时间：2026-07-13

- Research progress on comprehensive utilization and cascade upgrading of full-concentration coalbed methane
- CIESC Journal (2026)
- 作者机构：
  
  1.太原理工大学化学与化工学院，山西太原 030024
  2.怀柔实验室山西研究院，山西太原 030024
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20260573
  CLC： TE 09;TQ 028
- Received：22 April 2026，
  
  Revised：2026-07-10，
  
  Accepted：13 July 2026，
- 稿件说明：
移动端阅览
LI Xiaomin, ZHOU Yang, LI Shishuai, et al. Research progress on comprehensive utilization and cascade upgrading of full-concentration coalbed methane[J/OL]. CIESC Journal, 2026.
DOI：

LI Xiaomin, ZHOU Yang, LI Shishuai, et al. Research progress on comprehensive utilization and cascade upgrading of full-concentration coalbed methane[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260573.

摘要

煤层气是重要的非常规天然气资源，实现其高效利用对于优化能源结构、保障煤矿生产安全、进行温室气体减排有着重要意义。文章系统综述了全浓度煤层气综合利用及梯级提质（富集与提纯）技术的研究进展。依据不同浓度煤层气的组成特点，通过高值化学品转化、燃烧及燃爆发电、氧化供热等不同途径，分析了其在各应用场景中的适用性与发展现状。围绕中低浓度煤层气的梯级提质，介绍了主流工艺的基本原理、研究进展和工业化应用现状。着重论述了变压吸附分离技术的最新成果，包括高性能吸附材料的开发和变压吸附工艺的优化。最后表明，全域煤层气综合利用技术虽然已初步形成，但是还需要进一步提高系统集成与规模化，以此推动煤层气资源的高效利用。

Abstract

Coalbed methane (CBM)

a significant unconventional natural gas resource

holds strategic importance f

or optimizing energy structure

ensuring the safety of coal mining operations and reducing greenhouse gas emissions through effective utilization. This review systematically examines the comprehensive utilization and cascade upgrading

including enrichment and purification

of CBM across the full concentration range. For comprehensive utilization

differentiated approaches are adopted for CBM with different CH

concentrations

encompassing chemical conversion

combustion and knock combustion power generation

and oxidation for heat supply. The applicability and technical bottlenecks of these methods in different application scenarios are analyzed. In addition

more promising high-value conversion pathways and direct energy conversion via solid oxide fuel cells offer new development directions for enhancing the economic viability and utilization efficiency of CBM. For enrichment and purification

with a focus on improving the quality and efficiency of low-to-medium concentration CBM

this review introduces the basic principles

research progress

and industrial application status of mainstream processes. The recent advances in pressure swing adsorption (PSA) separation technology are highlighted

including the design and development of high-performance adsorbents

continuous optimization of PSA processes

exploratory applications of machine learning

and recent progress in novel PSA techniques. Although a comprehensive utilization technology system for CBM across the full concentration range has begun to take shape

numerous challenges remain in safe and efficient utilization

system integration

and large-scale operation across different concentration ranges

particularly for ventilation air methane (VAM). Future research should further strengthen technological research and development to promote the efficient

clean

and large-scale utilization of CBM resources.

关键词

Keywords

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