Application of 8-tower VPSA process in low-concentration coalbed methane CH4 concentration and enrichment
In order to improve the utilization rate of low-concentration coalbed methane, promote coal mine safety production and gas control, based on the working principle of vacuum pressure swing adsorption (VPSA) process, a control process of methane concentration and enrichment for low concentration coalb...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Safety in Coal Mines
2025-02-01
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| Series: | Meikuang Anquan |
| Subjects: | |
| Online Access: | https://www.mkaqzz.com/cn/article/doi/10.13347/j.cnki.mkaq.20231088 |
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| Summary: | In order to improve the utilization rate of low-concentration coalbed methane, promote coal mine safety production and gas control, based on the working principle of vacuum pressure swing adsorption (VPSA) process, a control process of methane concentration and enrichment for low concentration coalbed methane with 8 towers, 1 suction and 5 pressure equalization (8-1-5) is proposed. Siemens S7-300 PLC is selected as the lower computer controller, Zijinqiao V6.5 is used as the system control configuration, and each adsorption tower works alternately with 24 steps as a cycle. The results show that the 8-tower process can increase the CH4 content in low-concentration coalbed methane from 28% to 51.53%, and the CH4 recovery rate reaches 96.4%. |
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| ISSN: | 1003-496X |