A detailed mechanism of thermal CO2 reforming of CH4

被引：29

作者：

Wang, SG

Li, YW

Lu, JX

He, MY

Jiao, HJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China

[2] E China Normal Univ, Dept Chem, Shanghai 200062, Peoples R China

[3] Univ Rostock, Leibniz Inst Organ Katalyse, D-18055 Rostock, Germany

来源：

JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM | 2004年 / 673卷 / 1-3期

关键词：

CH4; CO2; thermal reforming; mechanism;

D O I：

10.1016/j.theochem.2003.12.013

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：

The mechanism of thermal CO2 reforming of CH4 was investigated using the B3LYP density functional method and the CCSD(T) ab initio approach. It is found that the C-H bond dissociation of CH4 initiates the thermal chain reactions at 1200 K. CO2 does not dissociate at 1200 K, but reacts with CH3 to produce the most likely CH3O intermediate. Further degradation of the CH3O intermediate leads to the principal products of reforming, H-2 and CO. The CHxO reaction path is more favored than the CH, alternatives. (C) 2004 Published by Elsevier B.V.

引用

页码：181 / 189

页数：9

共 38 条

[21] Carbon dioxide reforming of methane over 5 wt% nickel calcium aluminate catalysts - effect of preparation method [J].