Gasification of porous carbon particle by carbon dioxide |
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Authors: | V M Gremyachkin and E P Mazanchenko |
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Institution: | (1) School of Materials and Metallurgy, Northeastern University, Shenyang, 110819, People’s Republic of China;(2) School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, 114051, People’s Republic of China; |
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Abstract: | The diffusive-kinetic model of porous carbon particles gasification is developed. The model considers the processes of heat
and mass transfer both inside the porous particle and above it. Analysis of the model shows that heat and mass transfer have
an influence to the gasification process to a marked degree. Gasification of carbon particle by carbon dioxide is impossible
if particle temperature is lower about 850 K because concentration of carbon dioxide at the particle surface becomes lower
than its equilibrium concentration. The rate of the carbon particle gasification is determined as a function of the porous
particle internal surface area for different pressures and furnace temperatures. |
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Keywords: | |
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