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      저자 : T. Hirasaki (검색결과 1 건)
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        Kinetics of gasification of glass-like carbons heat-treated at various temperatures with CO2

        T. Meguro,T. Hirasaki,J. Tatami,T. Wakihara,K. Komeya 한양대학교 세라믹연구소 2007 Journal of Ceramic Processing Research Vol.8 No.1

        Reaction rates based on the Boudouard reaction using a Langmuir-Hinshelwood type equation were analyzed to investigate the effect of the heat treatment temperature on the reactivity of glass-like carbon made from furan resin with carbon dioxide. Glass-like carbons were prepared from furan resin at 1000oC, 1500 oC and 2000 oC. Oxidation was performed in the range from 925 oC to 1100 oC in a batch reactor. The binding energy of carbon-carbon in the glass-like carbon was found to increase with increasing heat treatment temperature. Contrarily, the binding energy between carbon and oxygen in a functional group was found to decrease with increasing heat treatment temperature. The oxidation resistance of glass-like carbons especially those heat-treated at high temperatures was concluded to be relatively excellent compared with other carbons such as graphite because the functional group containing oxygen was hard to form on glass-like carbon and the decomposition of the functional group into carbon monoxide was thought to be difficult. Reaction rates based on the Boudouard reaction using a Langmuir-Hinshelwood type equation were analyzed to investigate the effect of the heat treatment temperature on the reactivity of glass-like carbon made from furan resin with carbon dioxide. Glass-like carbons were prepared from furan resin at 1000oC, 1500 oC and 2000 oC. Oxidation was performed in the range from 925 oC to 1100 oC in a batch reactor. The binding energy of carbon-carbon in the glass-like carbon was found to increase with increasing heat treatment temperature. Contrarily, the binding energy between carbon and oxygen in a functional group was found to decrease with increasing heat treatment temperature. The oxidation resistance of glass-like carbons especially those heat-treated at high temperatures was concluded to be relatively excellent compared with other carbons such as graphite because the functional group containing oxygen was hard to form on glass-like carbon and the decomposition of the functional group into carbon monoxide was thought to be difficult.

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