The present invention relates to a process for producing light olefins from a synthesis gas with significantly improved conversion and selectivity for C
2
-C
4
light olefins in general and propylene in particular, as compared to a conventional process, through a sequential two-step process comprising preparing olefin compounds from a synthesis gas in the presence of an iron catalyst by the Fischer-Tropsch reaction followed by cracking the olefin compounds in the presence of a zeolite catalyst.
                            本发明涉及一种从合成气中生产轻烯烃的工艺,相对于传统工艺,通过一个顺序的两步过程,在
铁催化剂存在下通过费舍尔-
特普斯反应制备烯烃化合物,然后在
沸石催化剂存在下裂解烯烃化合物,从而显著提高了C2-C4轻烯烃的转化率和选择性,特别是
丙烯的选择性。