二步法合成甲醇 ,其第一步是甲醇羰基化合成甲酸甲酯 ;第二步是甲酸甲酯氢解合成甲醇。二步反应的优点是使反应温度和压力降低、选择性提高、产物甲醇不含水 ,使提纯容易。从而低能耗、高产率地合成甲醇 The two-step synthesis of methanol, the first step is methanol carbonylation of methyl formate; the second step is methyl formate hydrogenolysis of methanol. The advantages of the two-step reaction is to reduce the reaction temperature and pressure, selectivity, methanol-free product, making purification easy. Thus low-power, high yield synthesis of methanol