Combustion and CO2 gasification of coals in a wide temperature range

Takashi Kyotani, Kazuhide Kubota, Jianqin Cao, Hiromi Yamashita, Akira Tomita

    Research output: Contribution to journalArticlepeer-review

    46 Citations (Scopus)

    Abstract

    The combustion and gasification of five coals in air and CO2, respectively, have been carried out in a wide temperature range between 500 and 1500°C to examine the effects of coal rank and catalysis by mineral matter. It was found that the catalytic effect of mineral matter determined the reactivity of coal in the region where the rate was controlled by chemical reaction. At high temperature where external mass diffusion is dominant, the order of reactivity among five coals decreased with increasing coal rank. Obviously, the chemistry is still important to some extent in the latter high temperature region; the reactivity depends on the type of coal, and there is some catalytic effect by mineral species.

    Original languageEnglish
    Pages (from-to)209-217
    Number of pages9
    JournalFuel Processing Technology
    Volume36
    Issue number1-3
    DOIs
    Publication statusPublished - 1993 Jan 1

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Fuel Technology
    • Energy Engineering and Power Technology

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