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Kinetics of aqueous phase hydrogenation of maleic acid to succinic acid over an Ru/Al 2 O 3 catalyst
Author(s) -
Vaidya Prakash D,
Mahajani Vijaykumar V
Publication year - 2003
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.816
Subject(s) - maleic acid , catalysis , partial pressure , hydrogen , succinic acid , aqueous solution , chemistry , kinetics , inorganic chemistry , reaction rate , slurry , chemical kinetics , langmuir , rate equation , organic chemistry , materials science , polymer , oxygen , physics , copolymer , composite material , quantum mechanics
The kinetics of aqueous phase catalytic hydrogenation of maleic acid to succinic acid were studied in a slurry reactor between 323 and 353 K using a hydrogen partial pressure range of 1.03–2.06 MPa, with a 5% Ru/Al 2 O 3 catalyst. The initial rate data were analyzed using a power law model. Above 1.72 MPa hydrogen partial pressure, the reaction was zero order with respect to hydrogen. Based on this hydrogen pressure effect, a Langmuir–Hinshelwood rate model was proposed to which the rate data could be fitted well. Copyright © 2003 Society of Chemical Industry