天然气是非常丰富的石化燃料资源,对其优化利用而受到世界各国的高度重视.现有的已工业化的天然气加工利用方法主要为间接法,即由CH_4经水蒸汽重整制合成气,然后由费托反应等再进一步转化为汽油、柴油、甲醇、乙二醇等各种液体燃料和有机化工原料;此外,还有氯化氧化制氯化甲烷、高温裂解制乙炔等.但缺点是:设备复杂,投资大,高温高压,腐蚀性大等.目前处于开发阶段的几种主要甲烷催化转化方法:(1)甲烷氧化偶联制取乙烯、乙烷, Natural gas is a very rich resource of petrochemical fuels, which is highly valued by all countries in the world for its optimized utilization. The existing methods of industrialized natural gas processing and utilization are mainly indirect methods, that is, steam reforming from CH4 to syngas and then by Fischer-Tropsch reaction and then further into gasoline, diesel, methanol, ethylene glycol and other liquid fuels and organic chemical raw materials; In addition, there are chlorination of methane chloride, pyrolysis pyrolysis of acetylene, etc. But the drawback is: equipment Complex, large investment, high temperature and pressure, high corrosiveness, etc. There are several major methane catalytic conversion methods currently under development: (1) Methane oxidative coupling to ethylene, ethane,