Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.8
3.3
Journals
Sustainability
Special Issues
Enhanced Methane Extraction and Emission Reduction Technologies for the Full...
sustainability-logo
Submit to Special Issue Submit Abstract to Special Issue Review for Sustainability Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Enhanced Methane Extraction and Emission Reduction Technologies for the Full Cycle of Coal Production

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Engineering and Science".

Deadline for manuscript submissions: 30 March 2025 | Viewed by 1715

Special Issue Editors

Dr. Tong Liu

E-Mail Website
Guest Editor
Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221116, China
Interests: coal mine gas drainage; coal mine gas dynamic disaster prevention; methane recovery from microporous organic rocks; CO2 geological utilization and storage; unconventional natural gas development and coal-based carbon emission reduction
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Shiqi Liu

E-Mail Website
Guest Editor
Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
Interests: coal-based greenhouse gas emission reduction and resource utilization; carbon neutrality geotechnology
Prof. Dr. Chunshan Zheng

E-Mail Website
Guest Editor
School of Safety Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
Interests: gas drainage in mines; coalbed methane extraction
Dr. Zheng Wang

E-Mail Website
Guest Editor
School of Resource, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Interests: mine safety and emergency treatment; CBM exploration and development; mine gas prevention and utilization

Special Issue Information

Dear Colleagues,

Methane is the most important non-carbon dioxide greenhouse gas, and has received more and more attention in recent years. Currently, anthropogenic methane emissions mainly come from energy activities, industrial/agricultural production, land (wetlands), and waste disposal. Coal methane emissions are the main type, accounting for 12% of the total global anthropogenic methane emissions. Enhanced coal methane extraction, emission reduction, and the efficient utilisation of coal methane lead to greenhouse gas emission reduction, energy gas development and utilisation, and gas disaster prevention, which are of great significance for the sustainable development of society.

In the whole cycle of coal development, the efficient exploration and development of coalbed methane, the efficient extraction of coal mine gas, the extraction of gas from closed/abandoned mines, and the efficient utilisation of methane are the main ways to reduce coal methane emissions, and have consequently become hot spots of concern. This Special Issue aims at attracting more attention to, and promoting the discussion of, enhanced methane extraction and emission reduction in the whole cycle of coal production.

The aim of this Special Issue is to provide an opportunity for researchers to engage in a broader scientific and technical discussion on enhanced methane extraction, coal methane emission reduction, and efficient methane utilisation.

This Special Issue welcomes original research articles and reviews. Research areas may include (but are not limited to) the following:

  • Coalbed methane exploration and development;
  • Efficient coal mine methane extraction;
  • Evaluation of methane resources in abandoned mines;
  • Precision methane extraction from abandoned mines;
  • Low concentration gas utilisation;
  • Sustainable intelligent extraction;
  • New theory and methods of enhanced methane extraction;
  • Evaluation of coal methane emission reduction potential;
  • Monitoring and control of methane emissions;

Original research and review articles are both welcome.

We look forward to your submissions.

Dr. Tong Liu
Prof. Dr. Shiqi Liu
Prof. Dr. Chunshan Zheng
Dr. Zheng Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • coalbed methane (CBM)
  • methane extraction efficiency
  • new permeability enhancement methods
  • abandoned mine gas
  • low concentration methane utilization
  • methane emission reduction
  • emission monitoring technologies
  • sustainable resource assessment

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

18 pages, 8503 KiB  
Article
Characterization of Gas Seepage in the Mining Goaf Area for Sustainable Development: A Numerical Simulation Study
by Bing Li, Hao Li, Yuchen Tian, Helong Zhang, Qingfa Liao, Shiheng Chen, Yinghai Liu, Yanzhi Liu, Shiqi Liu, Shuxun Sang and Sijian Zheng
Sustainability 2024, 16(20), 8978; https://doi.org/10.3390/su16208978 - 17 Oct 2024
Viewed by 544
Abstract
An in-depth understanding of gas (oxygen and methane) seepage characteristics in coal mine goafs is essential for the safe production of mines and for advancing sustainable development practices within the mining industry. However, the gas distribution and its flow processes still remain ambiguous. [...] Read more.
An in-depth understanding of gas (oxygen and methane) seepage characteristics in coal mine goafs is essential for the safe production of mines and for advancing sustainable development practices within the mining industry. However, the gas distribution and its flow processes still remain ambiguous. In this article, we developed a three-dimensional porous media mining goaf mathematical model (considering the heterogeneity) to analyze the methane and oxygen flow features. Firstly, based on the variation laws of the “three zones”—the free caving zone, fracture zone, and subsidence zone—porosity changes in the vertical direction were set. A three-dimensional physical model of a fully mechanized caving mining area with a “U”-shaped ventilation system was established as the basis, and a COMSOL Multiphysics multi-field coupled model was built. Secondly, based on the established model, the characteristics of porosity distribution, mixed gas pressure changes, and the volume fraction of oxygen in the goaf were analyzed. The results show that as the distance from the working face increases, the compaction intensity in the mined-out area gradually rises, resulting in a decreasing porosity trend. The porosity distribution characteristics significantly impact the mechanical behavior and gas flow. The gas pressure inside the mined-out area is much higher than the surroundings, decreasing with depth. The upper and middle parts have the highest-pressure concentrations, requiring focused assessment and targeted monitoring measures based on the pressure characteristics of different regions. The oxygen concentration gradually decreases with depth due to poor ventilation, leading to potential explosive gas mixtures, necessitating ventilation system optimization, enhanced monitoring, and emergency preparedness. The gas exhibits vertical stratification, with higher concentrations in the upper and deep regions. Targeted drainage and ventilation methods can effectively control the gas concentration and ensure production safety. Full article
(This article belongs to the Special Issue Enhanced Methane Extraction and Emission Reduction Technologies for the Full Cycle of Coal Production)
►▼ Show Figures

Figure 1

22 pages, 11198 KiB  
Article
Numerical Simulation Study on Vibration Characteristics and Influencing Factors of Coal Containing Geological Structure
by Gang Xu, Suxin Li and Hongwei Jin
Sustainability 2024, 16(17), 7390; https://doi.org/10.3390/su16177390 - 27 Aug 2024
Viewed by 590
Abstract
Accurately determining the natural frequency of coal-containing geological structures is crucial for preventing mine dynamic disasters and utilizing vibration waves to break coal and enhance its permeability. Based on the modal theory of rock, vibration models of coal-containing geological structures, including layering and [...] Read more.
Accurately determining the natural frequency of coal-containing geological structures is crucial for preventing mine dynamic disasters and utilizing vibration waves to break coal and enhance its permeability. Based on the modal theory of rock, vibration models of coal-containing geological structures, including layering and fractures are established. By analysis, the undamped vibration equation and its characteristic equation for both the layered coal system and the fractured coal system are derived. Subsequently, the Lanczos method is employed to solve the system’s vibration modes using ABAQUS. The effects of the layering position, layering thickness, layering physical properties, crack width, and crack length on the natural frequency and vibration response of coal-containing geological structures are investigated. The results indicate that when a single influencing factor is altered, the displacement response distribution of the coal body vibration system with geological structures remains essentially the same, and these single influencing factors have a minimal impact on the vibration displacement of the coal-containing geological structure. The natural frequency of the system decreases exponentially as the distance between the layering and the geometric center of the coal system with geological structures increases. The presence of layering in the coal system with geological structures significantly reduces the system’s natural frequency. The natural frequency of the coal system with geological structures increases in a power function manner as the layering elastic modulus increases. Conversely, the natural frequency decreases with an increase in crack length. When the change ranges of crack width and bedding thickness are the same, the natural frequency of the fractured coal body system exhibits more significant changes. The natural frequency of the coal system with geological structures initially decreases and then increases as bedding thickness and crack width increase. The trend in the natural frequency changes and the position of the extreme point are related to the ratio of the elastic modulus and density of the geological structure. Full article
(This article belongs to the Special Issue Enhanced Methane Extraction and Emission Reduction Technologies for the Full Cycle of Coal Production)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop