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Experimental investigation of effects of CO2 injection on enhanced methane recovery in coal seam reservoirs

Abstract:
Abstract Enhanced coalbed methane (ECBM) recovery performed by injecting CO2 into coal reservoirs has been found to be a viable option for methane recovery, while CO2 injection into coal seams, especially unmineable ones, has great potential to sequestrate large volumes of CO2 to mitigate greenhouse gas accumulation in the atmosphere. This study was therefore initiated to investigate the effect of CO2 flooding on ECBM recovery and CO2 storage in coal. A series of CO2 core flooding tests was carried out on a high rank bituminous coal core with CO2 injection pressures from 6 to 10\u2009MPa. CO2 injection rate, methane and CO2 production rates, methane displacement efficiency and the volumetric strains of the core were calculated and recorded to enable interpretation of the results. It was observed that, compared with natural methane production in which only around 51.73% of methane is recovered, CO2 injection provides excellent methane displacement efficiency (over 90%), especially for high injection pressures (greater than 8\u2009MPa), which drive methane completely out of the coal sample. Although higher CO2 flooding pressure favours greater CO2 injection rates and methane production rates for any coal types, high rank coal shows faster and greater methane production and CO2 storage capacity. The observed rapid breakthrough of CO2 in the gas produced by elevated CO2 injection, especially for high injection pressures, may complicate the gas separation process. Adsorption-induced volumetric strain is approximately proportional to the CO2 storage capacity in coal which increases with CO2 pressure, and the strain reduces coal permeability and therefore CO2 injectivity and methane production.
Author Listing: Xiaogang Zhang;Pathegama Gamage Ranjith
Volume: 33
Pages: 394-404
DOI: 10.1016/J.JCOU.2019.06.019
Language: English
Journal: Journal of CO 2 Utilization

Journal of CO2 Utilization

J CO2 UTIL

影响因子:8.4
是否综述期刊:否
是否OA:否
是否预警:不在预警名单内
发行时间:-
ISSN:2212-9820
发刊频率:-
收录数据库:SCIE/Scopus收录
出版国家/地区:NETHERLANDS
出版社:Elsevier BV

期刊介绍

The Journal of CO2 Utilization offers a single, multi-disciplinary, scholarly platform for the exchange of novel research in the field of CO2 re-use for scientists and engineers in chemicals, fuels and materials.The emphasis is on the dissemination of leading-edge research from basic science to the development of new processes, technologies and applications. This includes CO2 as a feedstock in the chemical, energy and materials sectors, and utilization in general to help minimize environmental impact.The Journal of CO2 Utilization publishes original peer-reviewed research papers, reviews, and short communications, including experimental and theoretical work, and analytical models and simulations.The coverage includes, but is not limited to:Materials for CO2 activation and adsorptionHeterogeneous and homogeneous catalytic reactions involving CO2CO2 conversion to generate synthetic fuels, polymers, organic carbonates, and intermediate products.Supercritical CO2 utilization in natural product extraction, catalysis and separationUse of CO2 as an oxidantElectrochemical conversion of CO2Photo-electrochemical, photo-catalytic and photochemical conversion of CO2Biological conversion of CO2Integrated processes for CO2 conversion and reduction

《CO2利用杂志》为化学品、燃料和材料领域的科学家和工程师提供了一个单一、多学科的学术平台,交流CO2再利用领域的新研究。重点是传播从基础科学到新工艺、技术和应用开发的前沿研究。这包括CO2作为原料在化学,能源和材料部门,并利用一般帮助最小化环境影响。CO2利用杂志发表原始同行评审的研究论文,评论,和简短的通讯,包括实验和理论工作,分析模型和模拟。覆盖范围包括,但不限于:材料的CO2活化和吸附涉及CO2的多相和均相催化反应CO2转化产生合成燃料,聚合物,有机碳酸酯,和中间产品。超临界CO2利用天然产物提取,催化和分离。使用CO2作为氧化剂。CO2的电化学转化。光电化学,光催化和光化学转化。CO2的生物转化。CO2转化和还原的集成过程

年发文量 299
国人发稿量 95
国人发文占比 31.86%
自引率 4.8%
平均录取率 -
平均审稿周期 -
版面费 US$3460
偏重研究方向 CHEMISTRY, MULTIDISCIPLINARY-ENGINEERING, CHEMICAL
期刊官网 http://www.journals.elsevier.com/journal-of-co2-utilization/
投稿链接 https://www.editorialmanager.com/JCOU

质量指标占比

研究类文章占比 OA被引用占比 撤稿占比 出版后修正文章占比
90.30% 68.02% 0.00% 0.31%

相关指数

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影响因子
年发文量
自引率
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预警情况

时间 预警情况
2025年03月发布的2025版 不在预警名单中
2024年02月发布的2024版 不在预警名单中
2023年01月发布的2023版 不在预警名单中
2021年12月发布的2021版 不在预警名单中
2020年12月发布的2020版 不在预警名单中

JCR分区 WOS分区等级:Q1区

版本 按学科 分区
WOS期刊SCI分区
(2021-2022年最新版)

中科院分区

版本 大类学科 小类学科 Top期刊 综述期刊
工程技术
2区
ENGINEERING, CHEMICAL
工程:化工
2区
CHEMISTRY, MULTIDISCIPLINARY
化学:综合
2区
2021年12月
基础版
工程技术
2区
ENGINEERING, CHEMICAL
工程:化工
2区
CHEMISTRY, MULTIDISCIPLINARY
化学综合
3区
2021年12月
升级版
工程技术
2区
ENGINEERING, CHEMICAL
工程:化工
2区
CHEMISTRY, MULTIDISCIPLINARY
化学综合
2区
2020年12月
旧的升级版
工程技术
2区
ENGINEERING, CHEMICAL
工程:化工
2区
CHEMISTRY, MULTIDISCIPLINARY
化学综合
2区
2022年12月
最新升级版
工程技术
2区
ENGINEERING, CHEMICAL
工程:化工
2区
CHEMISTRY, MULTIDISCIPLINARY
化学:综合
2区