Comparison of temperature-programmed char combustion in CO2-O2 and Ar-O2 mixtures at elevated pressure

被引：0

作者：

Várhegyi, Gábor ^{[1
]}

Till, Ferenc ^{[1
]}

机构：

[1] Res. Lab. of Mat. and Environ. Chem., Chemical Research Center, Hungarian Academy of Sciences, P.O. Box 17, Budapest 1525, Hungary

来源：

Energy and Fuels | / 13卷 / 02期

关键词：

Bituminous coal - Carbon dioxide - Oxidation - Partial pressure - Pressure effects - Pyrolysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effect of CO2 partial pressure of 0.57 MPa at P = 0.6 MPa total pressure on the overall reaction of a temperature-programmed combustion was studied. The kinetics of the char+O2 reaction was not influenced by a high amount of CO2. This is explained by several factors: 1) the char+CO2 reaction has a much lower rate than the oxidation; 2) the CO2 does not participate in the elementary reactions of the oxidation; 3) changes in ambient CO2 concentrations do not materially affect the concentration of evolved CO2 at the molecular level.

引用

页码：539 / 540

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