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The effect of water vapor and inert gases on the carbon-oxygen reaction

✍ Scribed by S. Ahmed; M.H. Back

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
695 KB
Volume
25
Category
Article
ISSN
0008-6223

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✦ Synopsis

The interpretation of the effect of small quantities of water vapor on the kinetics of the gasification of carbon by oxygen is re-examined in the light of recent studies describing conditions under which an explosive reaction may occur in this mixture of reactant and products: oxygen, carbon monoxide, carbon dioxide and water vapor. The generation of water from residual hydrogen in the carbon is a key factor in the development of explosive conditions through a radical chain reaction in the gas phase. Some effects of inert gases on the rate of gasification are also explained by their influence on gas-phase reactions through stabilization of radicals and inhibition of diffusion of atoms to the walls. It is concluded that the possibility of gas-phase radical reactions in mixtures of carbon monoxide and oxygen, which depends critically on the presence of water vapor, should be considered in the interpretation of the kinetics of carbon gasification by oxygen. Key Words-Gasification, oxygen, effect of water vapor, gas phase reactions, inert gases, carbonoxygen reaction.

THE EFFZCT OF WATER VAPOR ON THE

CARBON-OXYGEN REACTION

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