变压吸附法分离富集乏风瓦斯的实验研究  

Experimental Study on Separation and Enrichment of Ventilation Air Methane by Vacuum Pressure Swing Adsorption

作　　者：竹涛[1] 陈锐[1] 和娴娴[1] 夏妮[1] 李笑阳[1] 赵文娟[1] 吴世琪 李奕杰 

机构地区：[1]中国矿业大学环境与化学工程学院,北京100083 [2]环境保护部环境保护对外合作中心气候变化与CDM工作组,北京100035

出　　处：《煤矿安全》2015年第9期1-4,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51108453);新世纪优秀人才支持计划资助项目(NCET120967);北京市优秀人才培养资助项目(2012ZG81);中央高校基本科研业务专项基金资助项目(2009QH03)

摘　　要：利用变压吸附分离技术,富集分离煤矿采煤矿井的巷道内部乏风瓦斯,目的在于保证煤炭生产安全,同时实现低浓度甲烷资源再利用。实验采用自行设计的双塔式变压吸附设备和改性活性炭吸附剂,整个流程由常压吸附联合真空解吸2个部分构成。实验比较了2种不同的活性炭吸附剂对瓦斯的吸附性能,通过调整切换时间、改变反吹流量等参数考察了吸附分离前后甲烷浓度的变化规律,进一步优化了工况参数。结果表明,变压吸附法能够有效实现乏风瓦斯的分离与富集。We present enrichment and separation of coal mine methane in the coal mine roadway by vacuum pressure swing adsorption（ VPSA）. And the purpose is to ensure the safety of coal production,and to achieve resources reusing for low concentration methane.In the experiment,self- designed double tower VPSA equipment and modified activated carbon adsorbent were used. The whole process of VPSA includes atmospheric pressure adsorption and vacuum desorption. Under the precondition of double units,the adsorption quantity of two types adsorbent was compared and identified. To further optimize duty parameters,the flux of after- adsorption and desorbed gas,the concentration of methane in after- adsorption and desorbed gas was studied by adjusting the parameters such as switching time,the purge gas quantity,and the change law of the methane concentration before and after adsorption separation,and so on. The results show that VPSA can effectively realize the separation and enrichment of low concentration methane in coal mine.

关 键 词：乏风瓦斯 变压吸附 富集 分离 活性炭 切换时间 

分 类 号：TD713[矿业工程—矿井通风与安全]