Synthesis of C₂-C₆ lower olefins from synthesis gas was investigated through Fischer-Tropsch synthesis (FTS) reaction over active carbon-supported iron catalyst with a small amount of Cu (Fe-Cu/AC) catalysts using a fixed bed reactor at 300 °C at 2.1 MPa. Mn promoted catalyst (Fe-Cu-Mn/AC) gave high yield and selectivity to the lower olefins. Added Mn species seemed likely to locate uniformly on the AC surface to form complex oxide with iron oxide. A high yield of ca. 40% is obtainable at high H₂/CO ratio of 4. The catalyst showed stable activity and selectivity for 100 h. CO₂ addition in the feed gas enhances the yield further by suppressing the water gas shift reaction.

使用固定床反应器，通过活性炭负载的铁催化剂与少量的Cu（Fe-Cu / AC）催化剂，通过费-托合成（FTS）反应，研究了由合成气合成C ₂ -C ₆低级烯烃的方法。 300摄氏度，2.1兆帕。锰促进的催化剂（Fe-Cu-Mn / AC）对低级烯烃具有高收率和选择性。所添加的锰物质似乎很可能均匀地分布在AC表面上，从而与氧化铁形成复合氧化物。大约高产。在4的高H ₂ / CO比下可获得40％的催化剂。催化剂在100小时内表现出稳定的活性和选择性。通过抑制水煤气变换反应，在原料气中添加CO ₂可以进一步提高收率。