Effect of incorporation manner of Zr promoter on precipitated ironbased catalysts for Fischer-Tropsch synthesis  

作　　者：ZHANG Hao-jian MA Hong-fang ZHANG Hai-tao YING Wei-yong FANG Ding-ye 

机构地区：[1]Engineering Research Center of Large Scale Reactor Engineering and Technology,State Key Laboratory of Chemical Engineer-ing,East China University of Science and Technology,Shanghai 200237,China

出　　处：《Journal of Coal Science & Engineering(China)》2012年第2期182-187,共6页煤炭学报（英文版）

摘　　要：The promotional effects of Zr on the structure, reduction, carburization and catalytic behavior of precipitated iron-based Fischer-Tropsch synthesis （FTS） catalysts were investigated. The catalysts were characterized by N2 physisorption, temperature-programmed reduction （TPR）, and M6ssbauer effect spectroscopy （MES） techniques. As revealed by N2 physisorption, Zr decreased the BET surface area and pore volume of the catalyst. The results of TPR and MES show that Zr suppresses the reduction and carburization of Fe catalysts because of the interaction between Fe and Zr. The FTS reaction results indicate that Zr decreases the FTS activity of Fe catalysts but improves the catalysts＇ stability. In addition, Zr promoter restraines the formation of light hydrocarbons （methane and C2-C4） and shifts the production distribution to the heavy hydrocarbons.

关 键 词：Zr promoter precipitated iron-based catalyst Fischer-Tropsch synthesis 

分 类 号：TQ529.2[化学工程—煤化学工程] TQ426.81