8塔VPSA工艺在低浓度煤层气CH_(4)浓缩富集中的应用  

Application of 8-tower VPSA process in low-concentration coalbed methane CH_(4)concentration and enrichment

作　　者：魏梓康 晏永飞[1] 李存磊[2] 陈槊 宁亿万 WEI Zikang;YAN Yongfei;LI Cunlei;CHEN Shuo;NING Yiwan(School of Mechanical Engineering,Liaoning Petrochemical University,Fushun 113001,China;School of Petroleum and Natural Gas Engineering,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学机械工程学院,辽宁抚顺113001 [2]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001

出　　处：《煤矿安全》2025年第2期33-39,共7页Safety in Coal Mines

基　　金：辽宁省科技厅应用基础研究计划资助项目(2023JH2/101300223)。

摘　　要：为了提高低浓度煤层气的利用率,促进煤矿安全生产与瓦斯治理,基于真空变压吸附(VPSA)工艺的工作原理,提出了8塔1吸5均压(8-1-5)的低浓度煤层气甲烷浓缩富集控制工艺。选用西门子S7-300型PLC作为下位机控制器,紫金桥V6.5作为系统控制组态,各吸附塔以24步序为1个循环周期交替工作。结果表明:8塔工艺可将低浓度煤层气中的CH_(4)含量由28%提升至51.53%,CH_(4)回收率达到了96.4%。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 CH_(4)content in low-concentration coalbed methane from 28%to 51.53%,and the CH_(4)recovery rate reaches 96.4%.

关 键 词：煤层气 VPSA工艺 瓦斯治理 PLC控制 CH_(4)浓缩 

分 类 号：TD845[矿业工程—煤矿开采]