煤层气(CBM)是一种以甲烷为主要成分的非常规天然气能源，具有储量丰富、燃烧清洁的优点，受到了国内外的广泛关注，但其利用率一直普遍较低，主要原因是低浓度煤层气缺乏有效利用，其中所含的氧气是限制其安全利用的关键。本工作介绍了燃烧法脱氧的基本原理及特点，包括焦炭燃烧法、催化燃烧法、化学链燃烧法，重点从碳材料、催化剂、氧载体等方面分析了目前的研究现状，尤其系统介绍了化学链燃烧技术，可以看到焦炭燃烧法脱氧温度较高(650~1000℃) ，改善碳材料性能、有效控制反应温度是该技术的关键；催化燃烧法脱氧过程会消耗甲烷，催化剂易中毒失活，高效催化剂的研发是关键；而化学链燃烧脱氧法具有最大程度保留甲烷含量、反应温度较低、氧载体材料廉价易得等优势，综合比较指出化学链燃烧法有望成为低浓度煤层气脱氧最有效的方法。

Coal bed methane (CBM) is a kind of unconventional natural gas energy that is mostly made of methane and is held as an adsorbed substance in coal seams. It has received a lot of attention both domestically and internationally due to its benefits of plentiful reserves and clean combustion. China has the third largest CBM deposits in the world, and the exploitation of CBM is expanding due to the increased interest in CBM in recent years, although the utilization rate is consistently low. The fundamental cause is a lack of effective low-concentration CBM utilization, where oxygen is essential to limiting safe CBM utilization. Deoxygenation is a requirement for safe utilization since low-concentration coalbed methane poses an explosion danger due to the presence of oxygen. This work introduces the basic principle and characteristics of combustion deoxidation, including the coke combustion method, catalytic combustion method, and chemical looping combustion method, with emphasis on carbon material, catalyst, oxygen carrier analysis of the current research status. In particular, the new technology of chemical looping combustion is discussed and analyzed. The findings demonstrate that the coke combustion process has a better deoxidation effect but has the shortcoming of high deoxidation temperature (650~1000℃), the key of current research is to improve the performance of carbon material and effectively control the reaction temperature. Methane will be consumed during catalytic combustion deoxidation, and the catalyst is easily poisoned and rendered inactive, the key to this technique is to investigate and develop a powerful catalyst, and this technique is not suitable for treating low-concentration CBM deoxidation. For the chemical looping combustion deoxidation method, the oxygen carrier material is inexpensive and simple to get, the reaction temperature is low, and this method can retain the maximum amount of methane. The thorough comparison reveals that deoxygenating low-concentration coalbed methane is more effectively accomplished using the chemical looping combustion approach.