Autothermal reforming of methane with integrated CO2 capture in a novel fluidized bed membrane reactor. Part 2: comparison of reactor configurations

F. Gallucci, M. van Sint Annaland, J.A.M. Kuipers

    Research output: Contribution to journalArticleAcademicpeer-review

    31 Citations (Scopus)
    88 Downloads (Pure)

    Abstract

    The reactor performance of two novel fluidized bed membrane reactor configurations for hydrogen production with integrated CO2 capture by autothermal reforming of methane (experimentally investigated in Part 1) have been compared using a phenomenological reactor model over a wide range of operating conditions (temperature, pressure, H2O/CH4 ratio and membrane area). It was found that the methane combustion configuration (where part of the CH4 is combusted in situ with pure O2) largely outperforms the hydrogen combustion concept (oxidative sweeping combusting part of the permeated H2) at low H2O/CH4 ratios (<2) due to in situ steam production, but gives a slightly lower hydrogen production rate at higher H2O/CH4 ratios due to dilution with combustion products. The CO selectivity was always much lower with the methane combustion configuration. Whether the methane combustion or hydrogen combustion configuration is preferred depends strongly on the economics associated with the H2O/CH4 ratio.
    Original languageUndefined
    Pages (from-to)146-157
    Number of pages11
    JournalTopics in catalysis
    Volume51
    Issue number1-4
    DOIs
    Publication statusPublished - 2008

    Keywords

    • METIS-254264
    • IR-67402

    Cite this