This paper introduced several advanced synthesis processes of methanol around the world and compared the different features between them. The structure of core equipment-synthesis tower was explained and the characteristics of methanol synthesis process were discussed. Liquid-phase synthesis technology of methanol was introduced and the developing trend of methanol process was also predicted.%主要介绍了目前世界上几种先进的大型甲醇合成工艺,对工艺中的核心设备——合成塔的结构做了说明,对大型甲醇合成工艺的特点进行了论述,并对几种工艺特点做了详细比较,同时介绍了液相甲醇合成技术,并预测了未来甲醇工艺的发展趋势.
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