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- W2327720704 abstract "To develop a simulation-model of the Hokkaishi-coal gasification pilot plant, a kinetic analysis of coal-char gasification was investigated. Experiments were conducted on the elementary reaction of C-CO2 and C-H2O.Taiheiyo char pre-treated at 600°C same as fed-char into the pilot plant was used as the test samples. Samples were gasified in a 28 mmφ small batch type fluidized bed reactor made of quartz.Reaction rate of the carbon was determined from the observed data of the produced gas.Both reaction processes of C-H2O and C-CO2 were predicted considerably well by a modified mathematical model of unreacted core, namely the rate constant of intraparticle diffusion was corrected dividing by square of unreacted carbon conversion.The activation energy of the C-H2O reaction was 31.2 kcal/mole and 38.5 kcal/mole for the intraparticle diffusion and interfacial reaction respectively. And also, the activa-tion energy of the C-CO2 reaction were 94.5 kcal/mole, and 44.1 kcal/mole respectively.From the results of measured values dx/dt, it was confirmed that the C-H2O reaction processed superiorly as compared with the C-CO2 reaction." @default.
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- W2327720704 date "1980-01-01" @default.
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- W2327720704 title "Reactivity of Coal Char with Steam and Carbon Dioxide" @default.
- W2327720704 doi "https://doi.org/10.3775/jie.59.64" @default.
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