Reforming of CH4 with CO2 and O2 to produce syngas over CaO modified Ni/SiO2 catalysts in a fluidized bed reactor

被引：8
|
作者：
Jing, QS
Lou, H
Mo, LY
Fei, JH
Zheng, XM
机构：
[1] Zhejiang Univ, Inst Catalysis, Hangzhou 310028, Peoples R China
[2] Xinyang Normal Univ, Dept Chem, Xinyang 464000, Peoples R China
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 2004年 / 83卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
CO2 reforming methane; syngas; Ni/CaO-SiO2; catalyst; fluidized-bed reactor;
D O I：
10.1023/B:REAC.0000046089.46624.1b
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Methane reforming by carbon dioxide and oxygen was investigated over 5 wt.%Ni/CaO-SiO2 catalyst in a fluidized-bed reactor. The catalyst exhibited high activity and good stability at stoichiometric methane, carbon oxide and oxygen feed. Effects of calcium loading, space velocities, reaction temperatures and the feed gas compositions for this combined reaction were investigated. These results indicated that Ni/CaO-SiO2 is more effective and stable. The catalyst performance, stability, structure, dispersion of nickel and carbon deposition of the modified and unmodified catalysts were investigated by a series of characterization techniques. Results showed that catalysts modified with CaO improved their stability better than the pure nickel-based catalysts.
引用
收藏
页码：291 / 298
页数：8
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