Hydrogen production from sucrose via aqueous-phase reforming

Lidia Godina, Hans Heeres, Sonia Garcia, Steve Bennett, Stephen Poulston, Dmitry Murzin

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    Commercial sucrose was used to produce hydrogen in a combined approach of hydrogenation and aqueous phase reforming (APR). First a mixture of technical sorbitol/mannitol was produced by hydrogenating an aqueous solution of sucrose in a trickle bed reactor over 5 wt % Ru/C. The produced polyols were treated in a continuous reactor at 498 K and elevated pressure deploying a 2.5 wt % Pt/C catalyst to yield hydrogen. The highest hydrogen selectivity was 62%. No large differences were found when comparing a commercial available sorbitol to the technical sorbitol/mannitol mixture in terms of conversion levels and selectivity to the gas-phase products. This was accompanied by a similar distribution of products retained in the liquid phase. The efficiency of APR when utilizing Pt/C was found to be still insufficient for industrial implementation in terms of hydrogen production. Thus, additional efforts should be made to increase the obtained amounts of hydrogen per mole of converted sugar alcohols.

    Original languageUndefined/Unknown
    Pages (from-to)14605–14623
    JournalInternational Journal of Hydrogen Energy
    Issue number29
    Publication statusPublished - 2019
    MoE publication typeA1 Journal article-refereed

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