煤层气焦炭燃烧除氧实验研究  

EXPERIMENTAL STUDY ON THE DEOXIDIZATION OF COALBED METHANE BY USING COKE COMBUSTION METHOD

作　　者：董卫果[1] 徐春霞[1] 王鹏[1] 杨宗仁[1] 李小亮[1] 张科达[1] 邓一英[1] 

机构地区：[1]煤炭科学研究总院北京煤化工研究分院,北京硕士工程师100013

出　　处：《煤炭转化》2009年第4期74-77,共4页Coal Conversion

基　　金：煤炭科学研究总院青年创新基金资助项目(2008QN33)

摘　　要：低浓度煤层气热值和浓度达不到工业利用的要求,工业利用时需要对其中的甲烷进行浓缩.由于煤层气含有氧,给浓缩工艺的安全性造成危害,因此在浓缩之前必须将氧除去.阐述了现行正在研究的几种除氧方法的特点,并采用管式炉实验装置对低浓度煤层气除氧进行了实验研究.结果发现,除氧温度小于700℃时,甲烷损失率小于10%,甲烷的裂解是造成甲烷损失的主要原因.通过焦炭燃烧法除氧,氧气浓度能够降至1%以下.The heat value and concentration of low concentration coalbed methane can＇t meet the requirement of industry utilization. When it is industrially used, the methane in the gas needs to be concentrated. However, there is danger in the concentrating process because of the oxygen existing in the gas. So it is necessary to remove oxygen from the gas before being concentrated. The charac- teristics of several deoxidization methods, which are researching currently, are briefly represen- ted~ experimental study on the deoxidization of low concentration coalbed methane in a tubular furnace is also carried on in this paper. The results show that the percentage loss of methane is less than 10%, while the deoxidization temperature is less than 700℃, the pyrolysis of methane is the main reason of the loss of methane. The concentration of oxygen can be reduced to less than 1%after deoxidization by using coke combustion method.

关 键 词：煤层气 焦炭燃烧 除氧 损失率 

分 类 号：TQ520[化学工程—煤化学工程] TD712.67[矿业工程—矿井通风与安全]