Method for producing methanol, dimethyl ether and light olefins from synthesis gas

摘要

A method for producing methanol, dimethyl ether and light olefins from synthesis gas is provided. In the process of the preparation, synthesis gas is in contact with a catalyst. The catalyst contains amorphous alloy which is composed of the first component Al and the second component. The second component is one or more elements selected from ⅠA, ⅢA, ⅣA, ⅤA, ⅠB, ⅡB, ⅣB, ⅤB, ⅥB, ⅦB, Ⅷ and lanthanide and their oxides, moreover, the second component is not Al. The characteristics of the preparation method are that the conversion ratio of CO is high, selectivity of objective product is high and the utilization ratio of carbon is high.