Aqueous-phase catalytic hydrogenation of organic acids and their mixtures

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The Ru/C-catalyzed hydrogenation reactions of lactic acid and propionic acid in aqueous solution were performed in a laboratory-scale stirred batch reactor. Kinetic data were collected over the ranges of temperature (343-423 K), hydrogen pressure (3.4-10.3 MPa) and acid feed concentration (0.05-5 M). The adsorption and reduction of individual acids, acid mixtures, and combinations of acids with their alcohol products on fully reduced catalyst were investigated. The acid conversion rates were not limited by mass-transport resistances over the reaction conditions studied. A Langmuir-Hinshelwood kinetic model was proposed to fit the acid conversion kinetics; rate constants and competitive adsorption coefficients for the reaction species were determined.

    Original languageEnglish (US)
    Title of host publicationAIChE Annual Meeting, Conference Proceedings
    Pages12047-12054
    Number of pages8
    StatePublished - 2005
    Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States

    Other

    Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
    CountryUnited States
    CityCincinnati, OH
    Period10/30/0511/4/05

    Profile

    Acids
    Kinetics
    Hydrogenation
    Adsorption
    Propionic acid
    Organic acids
    Batch reactors
    Lactic acid
    Rate constants
    Alcohols
    Mass transfer
    Hydrogen
    Catalysts
    Temperature

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Chen, Y., Miller, D. J., & Jackson, J. E. (2005). Aqueous-phase catalytic hydrogenation of organic acids and their mixtures. In AIChE Annual Meeting, Conference Proceedings (pp. 12047-12054)

    Aqueous-phase catalytic hydrogenation of organic acids and their mixtures. / Chen, Yuqing; Miller, Dennis J.; Jackson, James E.

    AIChE Annual Meeting, Conference Proceedings. 2005. p. 12047-12054.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Chen, Y, Miller, DJ & Jackson, JE 2005, Aqueous-phase catalytic hydrogenation of organic acids and their mixtures. in AIChE Annual Meeting, Conference Proceedings. pp. 12047-12054, 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States, 30-4 November.
    Chen Y, Miller DJ, Jackson JE. Aqueous-phase catalytic hydrogenation of organic acids and their mixtures. In AIChE Annual Meeting, Conference Proceedings. 2005. p. 12047-12054.

    Chen, Yuqing; Miller, Dennis J.; Jackson, James E. / Aqueous-phase catalytic hydrogenation of organic acids and their mixtures.

    AIChE Annual Meeting, Conference Proceedings. 2005. p. 12047-12054.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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