Effect of high temperature on the performance of Fe-Cu-K-Si catalyst for Fischer-Tropsch synthesis in slurry phase
Du Bing
Wang Tao
Liu Xiao
Hu Yunjian
Bu Yifeng
Men Zhuowu
Abstract：A Fe-Cu-K-Si catalyst for Fischer-Tropsch synthesis was prepared,and the effect of high temperature on the catalyst performance in slurry phase was investigated.Compared with the effect at 265 ℃,the results indicate that the slurry phase level decreases by 22％ but keeps stable at 320 ℃.CO conversion rate is increased by 20％,but the selection of CO2 is lower by 2％.In the meantime,CH4 and C2 -C4 hydrocarbon selection are improved respectively by 4.7％ and 11.72％,C2-C4 olefin-alkyl ratio is 1.99 higher,likewise,the C3 and C2 hydrocarbon olefin-alkyl ratio are 3.37 and 0.87 higher respectively.The experimental data indicates that when the reaction temperature is raised to 320 ℃,the selectivity of C5+ hydrocarbons is decreased apparently,even though CO conversion rate,C1-C4 hydrocarbon selection and olefin-alkyl ratio are increased obviously.Therefore,the reaction temperature should be controlled depending on the actual needs of hydrocarbon products distribution in industrial production.
Keywords：slurry phaseFischer-Tropsch synthesishigh temperaturecatalyst
Publication Date：2017-01-01