발간논문

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Vol.29, No.11, 1147 ~ 1153, 1991
Title
A Study on the Rate Phenomena in Particulate Flash Reaction of Chalcopyrite (2) ( A Mathematical Model on the Rate Phenomena in Particulate Flash Reaction )
김영환 Young Hwan Kim
Abstract
A mathematical model which describes the rate phenomena in particulate flash reaction system has been developed and examined with experimental results. The developed model faithfully reproduces the kinetic data and fluid profiles. The temperature history of reacting particles which can be hardly measured by experiment is also calculated and analyzed. From this study it is found that the heating of particle is mainly due to the convective heat transfer between particle and surrounding gas, after particle reaches about 700K, strong exothermicity of reaction leads the sharp increase of particle temperature. Fragmentation of particle seems to lead acceleration of desulfurization which causes the discrepancy of model prediction for large particles.
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