Research on adsorption characteristics and adsorption model of CH4 and CO2 in Leping Formation coal seam of Fengcheng Mining Area
The gas adsorption characteristic of coal body determines the geological storage capacity of coal seam. Isothermal adsorption experiments were conducted in the main B4 coal seam in the mining area under different temperature conditions to study the gas adsorption characteristics of the coal seam. Ni...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Safety in Coal Mines
2025-01-01
|
| Series: | Meikuang Anquan |
| Subjects: | |
| Online Access: | https://www.mkaqzz.com/cn/article/doi/10.13347/j.cnki.mkaq.20230958 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841527911530627072 |
|---|---|
| author | Fuqiang XIAO Yongjun ZOU Shuanglong ZHANG Xing QI Weidong XIAO |
| author_facet | Fuqiang XIAO Yongjun ZOU Shuanglong ZHANG Xing QI Weidong XIAO |
| author_sort | Fuqiang XIAO |
| collection | DOAJ |
| description | The gas adsorption characteristic of coal body determines the geological storage capacity of coal seam. Isothermal adsorption experiments were conducted in the main B4 coal seam in the mining area under different temperature conditions to study the gas adsorption characteristics of the coal seam. Nine different adsorption mathematical models were used to fit and analyze the CO2 adsorption experimental data, and the fitting effects of different models were tested. The results indicate that: the overall experimental pattern of CH4 and CO2 isothermal adsorption in B4 coal seam of Fengcheng Mining Area shows that the pressure is a positive effect and the temperature is a negative effect; the adsorption capacity of coal seams for CO2 is significantly stronger than that for CH4, and the ratio of the maximum adsorption capacity of the two is about 2.0; the L model, T model, LF model, and EL model have the best fitting effect and are most suitable for characterizing the adsorption characteristics of CO2 in coal seams. |
| format | Article |
| id | doaj-art-8f1c3ea6cd394b3a97e60a4f5d69b16b |
| institution | Kabale University |
| issn | 1003-496X |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Safety in Coal Mines |
| record_format | Article |
| series | Meikuang Anquan |
| spelling | doaj-art-8f1c3ea6cd394b3a97e60a4f5d69b16b2025-01-15T04:32:08ZzhoEditorial Office of Safety in Coal MinesMeikuang Anquan1003-496X2025-01-01561435110.13347/j.cnki.mkaq.20230958lyMKAQ20230958Research on adsorption characteristics and adsorption model of CH4 and CO2 in Leping Formation coal seam of Fengcheng Mining AreaFuqiang XIAO0Yongjun ZOU1Shuanglong ZHANG2Xing QI3Weidong XIAO4Jiangxi Province Key Laboratory of Exploration and Development of Critical Mineral Resources, Nanchang 330001, ChinaJiangxi Province Key Laboratory of Exploration and Development of Critical Mineral Resources, Nanchang 330001, ChinaJiangxi Province Key Laboratory of Exploration and Development of Critical Mineral Resources, Nanchang 330001, ChinaJiangxi Provincial Coal Geological Exploration and Research Institute, Nanchang 330001, ChinaJiangxi Provincial Coal Geological Exploration and Research Institute, Nanchang 330001, ChinaThe gas adsorption characteristic of coal body determines the geological storage capacity of coal seam. Isothermal adsorption experiments were conducted in the main B4 coal seam in the mining area under different temperature conditions to study the gas adsorption characteristics of the coal seam. Nine different adsorption mathematical models were used to fit and analyze the CO2 adsorption experimental data, and the fitting effects of different models were tested. The results indicate that: the overall experimental pattern of CH4 and CO2 isothermal adsorption in B4 coal seam of Fengcheng Mining Area shows that the pressure is a positive effect and the temperature is a negative effect; the adsorption capacity of coal seams for CO2 is significantly stronger than that for CH4, and the ratio of the maximum adsorption capacity of the two is about 2.0; the L model, T model, LF model, and EL model have the best fitting effect and are most suitable for characterizing the adsorption characteristics of CO2 in coal seams.https://www.mkaqzz.com/cn/article/doi/10.13347/j.cnki.mkaq.20230958geological storage of co2coal-bed methaneisothermal adsorptionadsorption modelcarbon neutralityfengcheng mining area |
| spellingShingle | Fuqiang XIAO Yongjun ZOU Shuanglong ZHANG Xing QI Weidong XIAO Research on adsorption characteristics and adsorption model of CH4 and CO2 in Leping Formation coal seam of Fengcheng Mining Area Meikuang Anquan geological storage of co2 coal-bed methane isothermal adsorption adsorption model carbon neutrality fengcheng mining area |
| title | Research on adsorption characteristics and adsorption model of CH4 and CO2 in Leping Formation coal seam of Fengcheng Mining Area |
| title_full | Research on adsorption characteristics and adsorption model of CH4 and CO2 in Leping Formation coal seam of Fengcheng Mining Area |
| title_fullStr | Research on adsorption characteristics and adsorption model of CH4 and CO2 in Leping Formation coal seam of Fengcheng Mining Area |
| title_full_unstemmed | Research on adsorption characteristics and adsorption model of CH4 and CO2 in Leping Formation coal seam of Fengcheng Mining Area |
| title_short | Research on adsorption characteristics and adsorption model of CH4 and CO2 in Leping Formation coal seam of Fengcheng Mining Area |
| title_sort | research on adsorption characteristics and adsorption model of ch4 and co2 in leping formation coal seam of fengcheng mining area |
| topic | geological storage of co2 coal-bed methane isothermal adsorption adsorption model carbon neutrality fengcheng mining area |
| url | https://www.mkaqzz.com/cn/article/doi/10.13347/j.cnki.mkaq.20230958 |
| work_keys_str_mv | AT fuqiangxiao researchonadsorptioncharacteristicsandadsorptionmodelofch4andco2inlepingformationcoalseamoffengchengminingarea AT yongjunzou researchonadsorptioncharacteristicsandadsorptionmodelofch4andco2inlepingformationcoalseamoffengchengminingarea AT shuanglongzhang researchonadsorptioncharacteristicsandadsorptionmodelofch4andco2inlepingformationcoalseamoffengchengminingarea AT xingqi researchonadsorptioncharacteristicsandadsorptionmodelofch4andco2inlepingformationcoalseamoffengchengminingarea AT weidongxiao researchonadsorptioncharacteristicsandadsorptionmodelofch4andco2inlepingformationcoalseamoffengchengminingarea |