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.

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
Duration: Oct 30 2005Nov 4 2005

Other

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

Profile

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

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, 10/30/05.
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. pp. 12047-12054
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