Mechanistic aspects of carbon dioxide reforming of methane to synthesis gas over Ni catalysts

被引：101

作者：

Zhang, ZL ^{[1
]}

Verykios, XE ^{[1
]}

机构：

[1] UNIV PATRAS,INST CHEM ENGN & HIGH TEMP PROC,GR-26500 PATRAS,GREECE

来源：

CATALYSIS LETTERS | 1996年 / 38卷 / 3-4期

关键词：

methane; reforming of; kinetics of methane reforming; carbon dioxide; reactions of; isotopic labeling; nickel; catalyst; lanthanum oxide; catalyst carrier; natural gas; utilization of;

D O I：

10.1007/BF00806565

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：

A study of the kinetic isotope effect (CH4/CO2 --> CD4/CO2) for carbon dioxide reforming of methane to synthesis gas shows that an isotope effect exists with k(CH4)/k(CD4) ratio of 1.05-1.97, depending on reaction temperature and catalyst applied. The attainment of stable performance over Ni/La2O3 catalyst is found to be related to the strong chemisorption of CO2, weak chemisorption of CH4 and slow rate of CHx formation, and fast rate for CHx removal by oxidation.

引用

页码：175 / 179

页数：5

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