| abstract |
The present invention relates to a 2-stage F-T reactor system for increasing the conversion rate of synthesis gas, and comprises: one or more first reactors (10) using a Fe catalyst to increase the conversion rate, being supplied with first synthesis gas extracted from coal, biomass, or natural gas and reacting therewith the Fe catalyst to obtain synthesis fuel; and a second reactor (20) using a FeCo catalyst or a Co catalyst, being supplied with second synthesis gas discharged after the reaction from the first reactor (10) and reacting therewith the FeCo catalyst or the Co catalyst to obtain synthesis fuel, wherein the first reactor (10) is configured to be supplied with a composition ratio of H2/CO included in the first synthesis gas, in the range of 0.6-1.2, and to adjust the inside temperature and the pressure, and the flow velocity of the first synthesis gas, so that when reacted, the CO conversion rate is in the range of 50-80%, and the second reactor (20) is configured to be supplied with a composition ratio of the H2/CO of the second synthesis gas discharged after the reaction in the first reactor (10), in the range of 1.8-2.0, and to adjust the inside temperature and the pressure, and the flow velocity of the second synthesis gas, so that when reacted, the CO conversion rate is in the range of 90-95%. |