浸渍法制备催化剂中不同载体对FT合成产物的影响  

The Influence of Different Kinds of Supports on FT Synthesis Product in Preparation of Catalyst by Impregnation

作　　者：胡利强[1] 张广瑞[1] 

机构地区：[1]郑州大学化工学院,河南郑州450001

出　　处：《河南化工》2008年第8期15-18,共4页Henan Chemical Industry

摘　　要：用浸渍法制备了三种不同载体的铁基催化剂,分别是白炭黑、L沸石以及硅胶负载的铁催化剂。对这三种催化剂分别用比表面积测定和XRD进行表征,并分别在FT合成条件为0.5 MPa、270℃,合成气H2/CO=2∶1,合成气流量为40 mL/min的条件下,在连续搅拌釜式反应器中反应6 h,收集液相产物,比较了不同载体铁基催化剂液相产物的碳数分布。初步论证了不同载体结构对FT合成产物的选择性有重要的作用,为工业生产中提高某种产物的选择性提供一些参考和帮助。Three kinds of iron- based catalysts are prepared by impregnation, they are iron loaded powdered silicon dioxide catalyst, iron loaded L zeolite catalyst and iron loaded silica gel catalyst. Three cata lysts are characterized by XRD and BET. The condition of FT synthesis are 0. 5 MPa, 2 7 0 ℃ , H2 / CO = 2 ： 1, air current 40 mL/min, FT synthesis is done for 6 h in a continuous stirred bed reactor, then the liquid product is collected. The carbon distribution of the liquid product of the three iron - based catalysts with different supports is compared. The results show that the support structure play an important role in the selectivity of FT synthesis liquid product. It provides some references for improving the selectively of some products.

关 键 词：FT合成 白炭黑 L沸石 硅胶 负载铁 

分 类 号：TQ426[化学工程]