煤矿安全2025，Vol.56Issue(2)：33-39,7.DOI:10.13347/j.cnki.mkaq.20231088
8塔VPSA工艺在低浓度煤层气CH4浓缩富集中的应用
Application of 8-tower VPSA process in low-concentration coalbed methane CH4 concentration and enrichment
摘要
Abstract
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 con-centration and enrichment for low concentration coalbed methane with 8 towers,1 suction and 5 pressure equalization(8-1-5)is pro-posed.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% .关键词
煤层气/VPSA工艺/瓦斯治理/PLC控制/CH4浓缩Key words
coalbed methane/VPSA process/gas control/PLC control/CH4 concentration分类
矿山工程引用本文复制引用
魏梓康,晏永飞,李存磊,陈槊,宁亿万..8塔VPSA工艺在低浓度煤层气CH4浓缩富集中的应用[J].煤矿安全,2025,56(2):33-39,7.基金项目
辽宁省科技厅应用基础研究计划资助项目(2023JH2/101300223) （2023JH2/101300223）
