Role of n-containing surface species on NO reduction by carbon

Ph Chambrion, Takashi Kyotani, A. Tomita

    Research output: Contribution to journalArticlepeer-review

    98 Citations (Scopus)

    Abstract

    In order to understand the mechanism of C - NO reaction, the detailed material balance was established by analyzing all the gas species produced during the reaction with mass spectroscopy and gas chromatography. The amount of nitrogen-containing surface species was estimated in the temperature range between 600 and 950 °C and with NO concentration of, mainly, 540 ppm. Then the effect of surface species on the reaction rate was examined. The step response experiments were carried out by switching the feed gas from 14N16O to 15N18O. The results reveal not only the reaction mechanism but also the depletion rate of surface nitrogen species during the experiment. N2 formation rate was correlated with NO concentration and the amount of surface nitrogen species. It is concluded that N2 is mainly formed by the first-order reaction between C(N) and NO.

    Original languageEnglish
    Pages (from-to)416-421
    Number of pages6
    JournalEnergy and Fuels
    Volume12
    Issue number2
    DOIs
    Publication statusPublished - 1998 Jan 1

    ASJC Scopus subject areas

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

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