Gas desorption law of coal particles and calculation method of gas loss during fixed‐point closed sampling-Reference-Cited by-同舟云学术

Gas desorption law of coal particles and calculation method of gas loss during fixed‐point closed sampling

Published:2024-02-28 Issue:3 Volume:12 Page:1110-1123
ISSN:2050-0505
Container-title:Energy Science & Engineering
language:en
Short-container-title:Energy Science & Engineering

Author:

Wen Zhihui¹²³⁴^ORCID,Wu Xinliang³,Wei Jianping¹²³,Wang Yanping³,Ren Jiangang⁵,Jia Ran³

Affiliation:

1. State Key Laboratory Cultivation Base for Gas Geology and Gas Control Henan Polytechnic University Jiaozuo China

2. State Collaborative Innovation Center of Coal Work Safety and Clean‐efficiency Utilization Jiaozuo China

3. College of Safety Science and Engineering Henan Polytechnic University Jiaozuo China

4. Zhengzhou Coal Industry (Group) Company Limited Zhengzhou China

5. College of Environment and Bioengineering University of Engineering Zhengzhou Henan China

Abstract

AbstractWith the application of new technologies for coal mine gas control, it has been increasingly urgent to apply the fixed‐point closed sampling (FPCS) technology for accurate measurement of coal seam gas content. In this study, gas desorption during FPCS was analyzed. In addition, gas desorption experiments and COMSOL simulations were conducted on coal particles. Furthermore, the gas desorption law during FPCS was compared with that under atmospheric pressure. The results show that Sun's formula can effectively characterize the gas desorption law during FPCS, and the i value remains unchanged when the gas desorption curve is fitted with Sun's formula. On this basis, a specific method for calculating gas loss during FPCS by using Sun's formula was proposed. The research findings are expected to provide a theoretical basis for accurate measurement of coal seam gas content by means of FPCS.

Funder

China Postdoctoral Science Foundation

National Natural Science Foundation of China

Henan Polytechnic University

Publisher

Wiley

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/ese3.1701

Reference29 articles.

1. Construction mode and key technology of mining shaft engineering for deep mineral resources;Liu Z;J China Coal Soc,2021

2. Research progress and prospect on theory and technology for coal and gas outburst control and protection in China;Wang E;J China Coal Society,2022

3. Analysis and prospect of precise prevention and control technical system ahead of large areas and time for gas disasters in China;Liu C;Coal Geol Explor,2022

4. Structure feature and evolution mechanism of pores in different metamorphism and deformation coals

5. Current status and development direction of intelligent mining technology for deep coal resources;Li W;Coal Sci Technol,2021