低温法浓缩煤层气中的甲烷  

Separation of Methane From Coal Seam Gas by Cryogenic Distillation

作　　者：陶鹏万[1] 王晓东[1] 黄建彬[1] 

机构地区：[1]西南化工研究设计院,成都610225

出　　处：《天然气化工—C1化学与化工》2005年第4期43-46,共4页Natural Gas Chemical Industry

摘　　要：叙述了采用低温法分离煤层气(CMM)的工艺流程,并讨论了工艺条件对分离过程的影响.对于含甲烷45%以上的煤层气,可将甲烷浓度提高到95%～99%,低温装置的甲烷回收率可达95%～99%.The process flows designed for the separation of coal seam gas （coal mine methane, CMM） by cryogenic distillation are described and the influences of various technological conditions on the separation process are also discussed. For CMM containing methane above 45 %, the cryogenic distillation plant may concentrate methane to 95%-99% with methane recovery of 95%-99%.

关 键 词：低温 分离 煤层气 甲烷 浓缩 

分 类 号：TQ2[化学工程—有机化工]