甲醇是重要的化工产品,也是重要的化工原料,其消费量仅次于乙烯、丙烯、苯,居第四位。现新建项目规模多为年产百万吨以上,选择一个好的技术不仅可以降低投资、节约能耗,还可以使装置运行稳定、易于操作和维护。本文从转化率、能耗、投资等方面对Lurgi和Davy的大甲醇合成技术进行对比,指出Lurgi工艺的优势。 Methanol is an important chemical product and an important chemical raw material. Its consumption is second only to ethylene, propylene and benzene, ranking the fourth place. New projects are mostly more than the annual output of 1 million tons, choose a good technology can not only reduce investment, save energy consumption, but also make the device stable operation, easy to operate and maintain. This article compares Lurgi with Davy’s methanol synthesis technology in terms of conversion rate, energy consumption and investment, pointing out the advantages of the Lurgi process.