A kinetic and mass transfer model for glycerol hydrogenation in a trickle bed reactor

Yaoyan Xi, Johnathan E. Holladay, John G. Frye, Aaron A. Oberg, James E. Jackson, Dennis J. Miller

    Research output: ResearchConference contribution

    • 1 Citations

    Abstract

    Glycerol hydrogenolysis to propylene glycol was carried out in a trickle bed reactor over a broad range of reaction conditions. Outlet glycerol conversion, selectivity to PG, and temperature profiles along the trickle bed were collected experimentally to characterize the system. A detailed model of glycerol hydrogenolysis has been developed that includes a mechanistically based kinetic rate expression, energy transport, mass transport through the liquid phase, and partial wetting of the trickle bed. Optimal kinetic parameters based on all collected data from the trickle bed system were determined via regression analysis. Model predictions agree with experimental data and accurately predict trends in reactor performance with liquid flow rate, temperature, hydrogen pressure, and base promoter concentration. The kinetic rate expression represents truly intrinsic kinetics and is compared with batch reactor data to unify reactions in both environments. The model is thus a useful tool for predicting laboratory reactor performance and for preliminary design of commercial-scale trickle bed systems.

    LanguageEnglish (US)
    Title of host publicationAIChE Annual Meeting, Conference Proceedings
    StatePublished - 2007
    Event2007 AIChE Annual Meeting - Salt Lake City, UT, United States
    Duration: Nov 4 2007Nov 9 2007

    Other

    Other2007 AIChE Annual Meeting
    CountryUnited States
    CitySalt Lake City, UT
    Period11/4/0711/9/07

    Profile

    Glycerol
    Hydrogenation
    Mass transfer
    Kinetics
    Hydrogenolysis
    Liquids
    Temperature
    Batch reactors
    Glycols
    Kinetic parameters
    Regression analysis
    Propylene
    Wetting
    Flow rate
    Hydrogen
    Propylene Glycol

    Keywords

    • Glycerol
    • Hydrogenolysis
    • Modeling
    • Propylene glycol
    • Trickle bed reactor

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)

    Cite this

    Xi, Y., Holladay, J. E., Frye, J. G., Oberg, A. A., Jackson, J. E., & Miller, D. J. (2007). A kinetic and mass transfer model for glycerol hydrogenation in a trickle bed reactor. In AIChE Annual Meeting, Conference Proceedings

    A kinetic and mass transfer model for glycerol hydrogenation in a trickle bed reactor. / Xi, Yaoyan; Holladay, Johnathan E.; Frye, John G.; Oberg, Aaron A.; Jackson, James E.; Miller, Dennis J.

    AIChE Annual Meeting, Conference Proceedings. 2007.

    Research output: ResearchConference contribution

    Xi, Y, Holladay, JE, Frye, JG, Oberg, AA, Jackson, JE & Miller, DJ 2007, A kinetic and mass transfer model for glycerol hydrogenation in a trickle bed reactor. in AIChE Annual Meeting, Conference Proceedings. 2007 AIChE Annual Meeting, Salt Lake City, UT, United States, 11/4/07.
    Xi Y, Holladay JE, Frye JG, Oberg AA, Jackson JE, Miller DJ. A kinetic and mass transfer model for glycerol hydrogenation in a trickle bed reactor. In AIChE Annual Meeting, Conference Proceedings. 2007.
    Xi, Yaoyan ; Holladay, Johnathan E. ; Frye, John G. ; Oberg, Aaron A. ; Jackson, James E. ; Miller, Dennis J./ A kinetic and mass transfer model for glycerol hydrogenation in a trickle bed reactor. AIChE Annual Meeting, Conference Proceedings. 2007.
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    AU - Jackson,James E.

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