Maldistribution susceptibility of monolith reactors: case study of glucose hydrogenation performance

Markus Schubert, Sebastian Kost, Rüdiger Lange, Tapio Salmi, Stefan Haase, Uwe Hampel

    Research output: Contribution to journalArticleScientificpeer-review

    12 Citations (Scopus)

    Abstract

    In this work an ultrafast electron beam X-ray modality was applied for the first time to characterize the gas–liquid Taylor flow inside each channel of an opaque honeycomb monolith structure ( ) for and . Significant spatial and temporal deviations in the phase holdup as well as in the gas bubble and liquid slug lengths were found. To evaluate the impact of Taylor flow maldistribution on the reactor performance, the data of more than unit cells were used to simulate the reactor productivity in the hydrogenation of glucose. The results verify that a monolith reactor solely designed by using superficial velocities and empirical correlations for gas bubble and liquid slug lengths fails significantly in achieving high product selectivity and the desired conversion. The developed methods are a solid base to design and select proper distributors ensuring the favorable flow configurations for specific chemical processes.
    Original languageUndefined/Unknown
    Pages (from-to)4346–4364
    JournalAIChE Journal
    Volume62
    Issue number12
    DOIs
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

    Keywords

    • engineering education

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