费-托合成催化剂CNFT-1的工业试验

费-托合成催化剂CNFT-1的工业试验在4 Mt/a煤制油装置的两个系列费-托合成反应器中分两个阶段进行，第一阶段为逐步替换原有催化剂的工业试验，最终置换率超过了95%，结果表明：催化剂CNFT-1性能满足工业生产要求。第二阶段基于工业替换试验数据，采用浆态床费-托合成反应器模拟软件，对采用100%催化剂CNFT-1运行的工艺条件进行优化，指导工业试验。在最优条件，即新鲜气负荷102.34%、催化剂藏量69.3 t、有效新鲜气空速5112 m³/(h.t)、温度273 ℃、压力2.81 MPa、循环比2.4、脱碳比0.156、新鲜气H₂/CO体积比1.66下，CO总转化率为97.4%，CO₂选择性为18.8%，CH₄选择性为2.0%，有效气耗为5630 m³/t。

COMMERCIAL TEST OF FISCHER-TROPSCH SYNTHESIS CATALYST CNFT-1

The commercial test of Fischer-Tropsch(F-T)synthesis catalyst CNFT-1 was carried out in two reactors of a 4 Mt a coal-to-liquids(CTL)commercial plant.The test was divided into two stages:Firstly,the original catalyst in reactor was gradually replaced by CNFT-1 up to 95%.The results showed that the performance of CNFT-1 could meet the production requirement.Secondly,based on the data of the first stage test,the process conditions with CNFT-1 catalyst 100%loading were simulated and optimized by the F-T slurry reactor simulation software to guide the new test.The optimal conditions were as follows:the fresh syngas load of 102.34%,the catalyst inventory of 69.3 t,the effective fresh syngas space velocity of 5112 m 3(h·t),the reaction temperature of 273℃,the pressure of 2.81 MPa,the recycle ratio of 2.4,the decarbonization ratio(φ)of 0.156 and the H₂CO volume ratio of 1.66.Under these conditions,the total CO conversion reached 97.4%with CO₂selectivity of 18.8%,the CH₄selectivity of 2.0%,and the effective gas consumption of 5630 m³per ton of oil.