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A Refined Assessment Model of Methane Emission from Underground Coal Mining Based on Mining Methods and Measured Gas Contents.

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Title: A Refined Assessment Model of Methane Emission from Underground Coal Mining Based on Mining Methods and Measured Gas Contents.
Authors: Li, Chaojie1 (AUTHOR), Li, Shisong2 (AUTHOR), Peng, Siran1 (AUTHOR), Pei, Peng2 (AUTHOR) ppei@gzu.edu.cn
Source: Energies (19961073). Jun2026, Vol. 19 Issue 12, p2778. 19p.
Subject Terms: *Methane, *Mining methodology, *Coalbed methane, *Mines & mineral resources, *Greenhouse gases, *Emission control
Abstract: To address the limitations in the accuracy of existing methods for calculating greenhouse gas emission intensity from underground coal mining, this study develops a more precise model for estimating methane emissions. The model is grounded in the methane release mechanism of coal, and incorporates field-measured original gas content, residual gas content after extraction, and retained gas content following ventilation. The model defines the computational scope based on different mining methods (with and without coal pillars) and incorporates potential direct emission reduction measures applicable at various stages of the mining process. Case studies of both a high-gas mine and a low-gas mine reveal that, while the pillarless mining method increases total methane emissions, emission intensity is reduced. Furthermore, the study demonstrates that preventing the direct release of low-concentration methane from ventilation systems is critical for further emission reductions. Compared to existing methods, the proposed framework adopts a computational approach that reduces operational complexity while maintaining accuracy through the use of readily available field-measured data. These findings offer a scientific basis for formulating tailored emission reduction strategies in the coal mining sector. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 194909227
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: A Refined Assessment Model of Methane Emission from Underground Coal Mining Based on Mining Methods and Measured Gas Contents.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Chaojie%22">Li, Chaojie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Shisong%22">Li, Shisong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Peng%2C+Siran%22">Peng, Siran</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pei%2C+Peng%22">Pei, Peng</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> ppei@gzu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Jun2026, Vol. 19 Issue 12, p2778. 19p.
– Name: Subject
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  Data: *<searchLink fieldCode="DE" term="%22Methane%22">Methane</searchLink><br />*<searchLink fieldCode="DE" term="%22Mining+methodology%22">Mining methodology</searchLink><br />*<searchLink fieldCode="DE" term="%22Coalbed+methane%22">Coalbed methane</searchLink><br />*<searchLink fieldCode="DE" term="%22Mines+%26+mineral+resources%22">Mines & mineral resources</searchLink><br />*<searchLink fieldCode="DE" term="%22Greenhouse+gases%22">Greenhouse gases</searchLink><br />*<searchLink fieldCode="DE" term="%22Emission+control%22">Emission control</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: To address the limitations in the accuracy of existing methods for calculating greenhouse gas emission intensity from underground coal mining, this study develops a more precise model for estimating methane emissions. The model is grounded in the methane release mechanism of coal, and incorporates field-measured original gas content, residual gas content after extraction, and retained gas content following ventilation. The model defines the computational scope based on different mining methods (with and without coal pillars) and incorporates potential direct emission reduction measures applicable at various stages of the mining process. Case studies of both a high-gas mine and a low-gas mine reveal that, while the pillarless mining method increases total methane emissions, emission intensity is reduced. Furthermore, the study demonstrates that preventing the direct release of low-concentration methane from ventilation systems is critical for further emission reductions. Compared to existing methods, the proposed framework adopts a computational approach that reduces operational complexity while maintaining accuracy through the use of readily available field-measured data. These findings offer a scientific basis for formulating tailored emission reduction strategies in the coal mining sector. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=194909227
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/en19122778
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      – Code: eng
        Text: English
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        PageCount: 19
        StartPage: 2778
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      – SubjectFull: Methane
        Type: general
      – SubjectFull: Mining methodology
        Type: general
      – SubjectFull: Coalbed methane
        Type: general
      – SubjectFull: Mines & mineral resources
        Type: general
      – SubjectFull: Greenhouse gases
        Type: general
      – SubjectFull: Emission control
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      – TitleFull: A Refined Assessment Model of Methane Emission from Underground Coal Mining Based on Mining Methods and Measured Gas Contents.
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            – D: 15
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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