Article(id=1281683215303807090, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1281683189131359212, articleNumber=null, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2025.05.1581, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1733760000000, receivedDateStr=2024-12-10, revisedDate=1739635200000, revisedDateStr=2025-02-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1783506691051, onlineDateStr=2026-07-08, pubDate=1748361600000, pubDateStr=2025-05-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1783506691051, onlineIssueDateStr=2026-07-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1783506691051, creator=13701087609, updateTime=1783506691051, updator=13701087609, issue=Issue{id=1281683189131359212, tenantId=1146029695717560320, journalId=1146031787341344770, year='2025', volume='35', issue='5', pageStart='1', pageEnd='268', issueExtLink='null', onlineDate='null', pubDate='1748361600000', pubDateStr='2025-05-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1783506684811, creator='13701087609', updateTime=1783589333681, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1282029843684504545, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1281683189131359212, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1282029843684504546, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1281683189131359212, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=91, endPage=98, ext={EN=ArticleExt(id=1281683215505133683, articleId=1281683215303807090, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Influence law of power plant flue gas injection pressure on desorption efficiency of adsorbed state gas in coal beds, columnId=1149733269173878863, journalTitle=China Safety Science Journal, columnName=Safety engineering technology, runingTitle=null, highlight=null, articleAbstract=

In order to explore the effect of gas injection pressure of power plant on the adsorption gas desorption efficiency of coal seam, NMR technology was used to quantitatively study the dynamic change process of CH4 competitive adsorption under different gas injection pressure of power plant. The influence law of gas injection pressure on methane desorption, desorption efficiency and unit time recovery efficiency was obtained. The experimental results show that when anthracite coal adsorbs CH4, the T2 spectrum shows a bimodal characteristic. As time increases, the peak of T2 spectrum of adsorbed CH4 increases, while the peak of T2 spectrum of free CH4 decreases. With the increase of time, the adsorption rate of CH4 by coal slows down. During the competitive adsorption process of power plant flue gas and CH4 from coal, the T2 spectrum exhibits three-peaks characteristics. As time progresses, the T2 spectrum peaks of adsorbed CH4 decreases, while the T2 spectrum peaks of free CH4 increases. The integrals of adsorbed and free T2 spectra show an exponential function with the adsorption time, and a linear function with the pressure of flue gas injection in the power plant. The power plant flue gas injection pressure shows a linear increase with CH4 desorption efficiency. The injection of 3.5 MPa power plant flue gas increases the total desorption of adsorbed CH4 from coal samples in the sample tank by 0.016 mol, enhances the recovery efficiency per unit time by 3.440%, and increases the total desorption efficiency by 20.631%, compared to 1.5 MPa.

, authors=Gang BAI1, 2, 3, Haijing ZHANG2, Jun SU1, Han LIANG2, Xiaowen ZHANG1, Zhengdong LIU4, authorsList=Gang BAI, Haijing ZHANG, Jun SU, Han LIANG, Xiaowen ZHANG, Zhengdong LIU, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1281683216050393206, articleId=1281683215303807090, tenantId=1146029695717560320, journalId=1146031787341344770, language=CN, title=电厂烟气注气压力对煤层吸附态瓦斯解吸效率的影响, columnId=1149733269727526997, journalTitle=中国安全科学学报, columnName=安全工程技术, runingTitle=null, highlight=null, articleAbstract=

为探究电厂烟气注气压力对煤层吸附态瓦斯解吸效率的影响特性,采用核磁共振(NMR)技术定量研究不同电厂烟气注气压力下煤层CH4竞争吸附的动态变化过程,得到烟气注气压力对甲烷解吸量、解吸效率和单位时间回收效率的影响特征。试验结果表明:无烟煤吸附CH4时,T2谱呈现双峰特征,随着时间增加,吸附态CH4T2谱峰值增加,游离态CH4T2谱峰值降低,随着时间增加,煤对CH4的吸附速率变缓;电厂烟气与煤中CH4竞争吸附过程中,T2谱呈现3峰特征,随着时间推移,吸附态CH4T2谱峰降低,游离态CH4T2谱峰增加,吸附态、游离态T2谱积分与吸附时间呈现指数函数变化,与电厂烟气注气压力呈现线性函数变化;电厂烟气注气压力与CH4解吸效率呈现线性增长,其中,注3.5 MPa电厂烟气较1.5 MPa对样品罐中煤样吸附CH4的总解吸量增加0.016 mol,单位时间回收效率提高3.440%,总解吸效率提升20.631%。

, authors=白刚教授1, 2, 3, 张海晶2, 苏俊1, 梁晗讲师2, 张潇文讲师1, 刘正东副教授4, authorsList=白刚教授, 张海晶, 苏俊, 梁晗讲师, 张潇文讲师, 刘正东副教授, authorCompany=null, correspAuthors=null, authorNote=

白刚(1991—),男,安徽灵璧人,博士,教授,博士生导师,主要从事矿井瓦斯与火灾防治等方面的研究。E-mail:

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2College of Mining, Liaoning Technical University, Fuxin Liaoning 123000, China
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3辽宁工程技术大学 鄂尔多斯研究院,内蒙古 鄂尔多斯 017004, bio={"content":"

白刚(1991—),男,安徽灵璧人,博士,教授,博士生导师,主要从事矿井瓦斯与火灾防治等方面的研究。E-mail:

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白刚(1991—),男,安徽灵璧人,博士,教授,博士生导师,主要从事矿井瓦斯与火灾防治等方面的研究。E-mail:

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电厂烟气注气压力对煤层吸附态瓦斯解吸效率的影响
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白刚教授 1, 2, 3 , 张海晶 2 , 苏俊 1 , 梁晗讲师 2 , 张潇文讲师 1 , 刘正东副教授 4
中国安全科学学报 | 安全工程技术 2025,35(5): 91-98
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中国安全科学学报 |安全工程技术 2025 , 35 (5) : 91 -98
电厂烟气注气压力对煤层吸附态瓦斯解吸效率的影响
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白刚(1991—),男,安徽灵璧人,博士,教授,博士生导师,主要从事矿井瓦斯与火灾防治等方面的研究。E-mail:

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白刚(1991—),男,安徽灵璧人,博士,教授,博士生导师,主要从事矿井瓦斯与火灾防治等方面的研究。E-mail:

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白刚教授1, 2, 3 , 张海晶2, 苏俊1, 梁晗讲师2, 张潇文讲师1, 刘正东副教授4
作者信息
  • 1辽宁工程技术大学 安全科学与工程学院,辽宁 葫芦岛 125105
  • 2辽宁工程技术大学 矿业学院,辽宁 阜新 123000
  • 3辽宁工程技术大学 鄂尔多斯研究院,内蒙古 鄂尔多斯 017004
  • 4东北大学 资源与土木工程学院,辽宁 沈阳 110819
作者简介:

白刚(1991—),男,安徽灵璧人,博士,教授,博士生导师,主要从事矿井瓦斯与火灾防治等方面的研究。E-mail:

Influence law of power plant flue gas injection pressure on desorption efficiency of adsorbed state gas in coal beds
Gang BAI1, 2, 3 , Haijing ZHANG2, Jun SU1, Han LIANG2, Xiaowen ZHANG1, Zhengdong LIU4
Affiliations
  • 1College of Safety Science & Engineering, Liaoning Technical University, Huludao Liaoning 125105, China
  • 2College of Mining, Liaoning Technical University, Fuxin Liaoning 123000, China
  • 3Ordos Research Institute, Liaoning Technical University, Ordos Inner Mongolia 017004, China
  • 4School of Resources and Civil Engineering, Northeastern University, Shenyang Liaoning 110819, China
出版时间: 2025-05-28 doi: 10.16265/j.cnki.issn1003-3033.2025.05.1581
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为探究电厂烟气注气压力对煤层吸附态瓦斯解吸效率的影响特性,采用核磁共振(NMR)技术定量研究不同电厂烟气注气压力下煤层CH4竞争吸附的动态变化过程,得到烟气注气压力对甲烷解吸量、解吸效率和单位时间回收效率的影响特征。试验结果表明:无烟煤吸附CH4时,T2谱呈现双峰特征,随着时间增加,吸附态CH4T2谱峰值增加,游离态CH4T2谱峰值降低,随着时间增加,煤对CH4的吸附速率变缓;电厂烟气与煤中CH4竞争吸附过程中,T2谱呈现3峰特征,随着时间推移,吸附态CH4T2谱峰降低,游离态CH4T2谱峰增加,吸附态、游离态T2谱积分与吸附时间呈现指数函数变化,与电厂烟气注气压力呈现线性函数变化;电厂烟气注气压力与CH4解吸效率呈现线性增长,其中,注3.5 MPa电厂烟气较1.5 MPa对样品罐中煤样吸附CH4的总解吸量增加0.016 mol,单位时间回收效率提高3.440%,总解吸效率提升20.631%。

电厂烟气  /  注气压力  /  吸附态瓦斯  /  解吸效率  /  核磁共振(NMR)  /  竞争吸附

In order to explore the effect of gas injection pressure of power plant on the adsorption gas desorption efficiency of coal seam, NMR technology was used to quantitatively study the dynamic change process of CH4 competitive adsorption under different gas injection pressure of power plant. The influence law of gas injection pressure on methane desorption, desorption efficiency and unit time recovery efficiency was obtained. The experimental results show that when anthracite coal adsorbs CH4, the T2 spectrum shows a bimodal characteristic. As time increases, the peak of T2 spectrum of adsorbed CH4 increases, while the peak of T2 spectrum of free CH4 decreases. With the increase of time, the adsorption rate of CH4 by coal slows down. During the competitive adsorption process of power plant flue gas and CH4 from coal, the T2 spectrum exhibits three-peaks characteristics. As time progresses, the T2 spectrum peaks of adsorbed CH4 decreases, while the T2 spectrum peaks of free CH4 increases. The integrals of adsorbed and free T2 spectra show an exponential function with the adsorption time, and a linear function with the pressure of flue gas injection in the power plant. The power plant flue gas injection pressure shows a linear increase with CH4 desorption efficiency. The injection of 3.5 MPa power plant flue gas increases the total desorption of adsorbed CH4 from coal samples in the sample tank by 0.016 mol, enhances the recovery efficiency per unit time by 3.440%, and increases the total desorption efficiency by 20.631%, compared to 1.5 MPa.

power plant flue gas  /  injection pressure  /  adsorbed gas  /  desorption efficiency  /  nuclear magnetic resonance(NMR)  /  competitive adsorption
白刚教授, 张海晶, 苏俊, 梁晗讲师, 张潇文讲师, 刘正东副教授. 电厂烟气注气压力对煤层吸附态瓦斯解吸效率的影响. 中国安全科学学报, 2025 , 35 (5) : 91 -98 . DOI: 10.16265/j.cnki.issn1003-3033.2025.05.1581
Gang BAI, Haijing ZHANG, Jun SU, Han LIANG, Xiaowen ZHANG, Zhengdong LIU. Influence law of power plant flue gas injection pressure on desorption efficiency of adsorbed state gas in coal beds[J]. China Safety Science Journal, 2025 , 35 (5) : 91 -98 . DOI: 10.16265/j.cnki.issn1003-3033.2025.05.1581
  • 国家自然科学基金资助(52274204)
  • 中国科协青年人才托举工程项目(2022QNRC001)
  • 辽宁省自然科学基金优秀青年基金资助(2024JH3/10200042)
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doi: 10.16265/j.cnki.issn1003-3033.2025.05.1581
  • 接收时间:2024-12-10
  • 首发时间:2026-07-08
  • 出版时间:2025-05-28
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  • 收稿日期:2024-12-10
  • 修回日期:2025-02-16
基金
国家自然科学基金资助(52274204)
中国科协青年人才托举工程项目(2022QNRC001)
辽宁省自然科学基金优秀青年基金资助(2024JH3/10200042)
作者信息
    1辽宁工程技术大学 安全科学与工程学院,辽宁 葫芦岛 125105
    2辽宁工程技术大学 矿业学院,辽宁 阜新 123000
    3辽宁工程技术大学 鄂尔多斯研究院,内蒙古 鄂尔多斯 017004
    4东北大学 资源与土木工程学院,辽宁 沈阳 110819
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