近几年来 ,我国甲醇装置开工率一直很低。主要原因 :①近年来 ,国外一些规模大的装置相继投产 ,甲醇生产成本下降 ,致使我国甲醇进口量逐年上升。②目前国内甲醇总年产能力虽已达 30 0多万吨 ,但大多数均为 1万吨级左右的装置 ,这些装置主要建在合成氨厂 ,而合成工艺多采用中、 In recent years, China’s methanol plant operating rate has been low. Main reasons: ① In recent years, some large-scale installations in foreign countries have been put into operation one after another, and the cost of methanol production has dropped. As a result, the volume of methanol imports in our country has increased year by year. ② At present, although the total annual methanol production capacity in China has reached over 30 million tons, most of them are 10,000-ton-class ones. These devices are mainly built at ammonia plants and the synthesis processes are mostly used.