Catalytic performance of Co-Mo-Ce-K/γ-Al_(2)O_(3) catalyst for the shift reaction of CO in coke oven gas

作     者：Yuqiong ZHAO Yongfa ZHANG 

作者机构：Key Laboratory of Coal Science and Technology of Shanxi Province and Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2010年第4卷第4期

页      面：457-460页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the National Basic Research Program of China(Grant No.2005CB221202) Shanxi Provincial Natural Science Foundation(20051020)for financial support of this study 

主　　题：coke oven gas water gas shift reaction sulfurtolerant catalyst cerium dioxide 

摘      要：The catalytic performance of Co-Mo-Ce-K/γAl_(2)O_(3) catalyst for the shift reaction of CO in coke oven gas is investigated using X-ray diffraction(XRD)and temperature-programmed reduction(TPR).The results indicate that Ce and K have a synergistic effect on promoting the catalytic activity,and the Co-Mo-Ce-K/γAl_(2)O_(3) catalyst with 3.0 wt-%CeO2 and 6.0 wt-%K_(2)O exhibits the highest ***2 favors Co dispersion and mainly produces an electronic *** characterization results indicate that the addition of CeO2-K_(2)O in the Co-Mo-Ce-K/γ-Al_(2)O_(3) catalyst decreases the reduction temperature of active components,and part of octahedrally coordinated Mo6+transforms into tetrahedrally coordinated Mo6+,which has a close relationship with the catalytic activity.