Partial oxidation of methane over Ni/SiO2

被引：0
|
作者：
Roh, HS
Dong, WS
Jun, KW
Liu, ZW
Park, SE
Oh, YS
机构：
[1] Korea Res Inst Chem Technol, Catalysis Ctr Mol Engn, Taejon 305600, South Korea
[2] Korea Gas Corp, LNG Technol Res Ctr, Inchon 406130, South Korea
来源：
BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2002年 / 23卷 / 05期
关键词：
methane; Ni/SiO2; POM; pulse reaction; reforming;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ni catalyst (Ni: 15 wt%) supported on precalcined SiO2 has been investigated in reforming reactions of methane to synthesis gas. The catalyst exhibited fairly good activity and stability in partial oxidation of methane (POM), whereas it deactivated in steam reforming of methane (SRM). Pulse reaction results of CH4, O-2, and CH4/O-2 revealed that Ni/SiO2 has high capability to dissociate methane. The results also revealed that both CH4 and O-2 are activated on the surface of metallic Ni, and then surface carbon species react with adsorbed oxygen to produce CO and CO2 depending on the bond strength of the oxygen species on the catalyst surface.
引用
收藏
页码：669 / 673
页数：5
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