Partial oxidation and dry reforming of methane over Ca/Ni/K(Na) catalysts

被引：22

作者：

Shamsi, Abolghasem ^{[1
]}

机构：

[1] US DOE, Natl Energy Technol Lab, Morgantown, WV 26505 USA

来源：

CATALYSIS LETTERS | 2006年 / 109卷 / 3-4期

关键词：

synthesis gas; dry reforming; catalysis; carbon formation;

D O I：

10.1007/s10562-006-0076-0

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 [物理化学]; 081704 [应用化学];

摘要：

Partial oxidation and dry reforming of methane to synthesis gas over Ca/Ni/K(Na) catalysts have been studied. Effects of temperature, pressure, and oxygen/methane ratios on catalytic activity, selectivity, and carbon formation have been determined. Also reforming of (CH4)-C-13 in the presence of CO2 and Temperature-Programmed Oxidation (TPO) of deposited carbon after the reaction indicated that both methane and CO2 contribute to carbon formation. The TPO of deposited carbon on Ca/Ni/K catalyst showed that the catalyst consumed a significant amount of oxygen, only a fraction of which was consumed by carbon species on the surface, indicating that the surface oxygen plays a significant role in oxidizing and removing carbon species from the catalyst surfaces.

引用

页码：189 / 193

页数：5

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