Partial Oxidation of Methane over Ni/SiO2

Bulletin of the Korean chemical society

Hyun-Seog Roh¹  Zhong-Wen Liu¹  Wen-Sheng Dong¹  Ki-Won Jun¹  Sang-Eon Park¹  Young-Sam Oh¹ 

关键词: Methane;    Ni/SiO2;    POM;    Pulse reaction;    Reforming.;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 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, O2, and CH4/O2 revealed that Ni/SiO2 has high capability to dissociate methane. The results also revealed that both CH4 and O2 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.

【 授权许可】

Unknown