瓦斯低温等离子体转化制甲醇的可行性分析

Feasibility analysis on selective conversion of mine gas to methanol by cold plasma

矿井瓦斯虽然是煤矿井下开采的灾害因素,但也是一种优质的化工原料,由于它难以加工利用,所以目前放空现象严重,因而亟须开发矿井瓦斯利用的新技术。笔者提出了低温等离子体转化瓦斯直接合成甲醇的研究思路。从低温等离子体转化瓦斯的反应机理入手,围绕矿井瓦斯部分氧化制甲醇的热力学、甲烷等离子体制甲醇的转化机理、实验系统、反应条件和反应能耗特点对矿井瓦斯低温等离子体转化制甲醇的可行性进行了探讨。结果表明,矿井瓦斯低温等离子转化制甲醇在理论上是可行的。该研究可为开发瓦斯利用的新技术提供理论参考。

Despite its occurrence as a hazard factor for underground mining coal, mine gas is a high- quality chemical raw material required to be utilized by developing state-of-the-art capable of preventing a large amount of mine gas from being vented into the atmosphere, which occurs as a result of the difficul- ties in processing and utilization of mine gas. This paper features an approach tailored for the selective conversion of mine gas to methanol by cold plasma. The paper starts with the introduction of the mecha- nism of mine gas selective conversion by plasma and proceeds with the discussion of the feasibility on con- version of mine gas to methanol by cold plasma, considering everything from thermodynamics of gas par- tial oxidation to methanol, research advance on methane selective conversion by cold plasma, experimen- tal system made by us, to reaction condition and energy consumption of cold plasma reaction, The result shows the theoretical feasibility of realizing the preparation of methanol by plasma conversion of mine gas. This study provides a theoretical reference for developing new technology of mine gas utilization.