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Kinetics of the Ruthenium‐Catalyzed Hydrogenation of Acetic Acid to Ethanol
Author(s) -
Shih YenShiang,
Lee ChangKeng
Publication year - 1985
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198500006
Subject(s) - chemistry , acetic acid , catalysis , ruthenium , ethanol , hydrogen , kinetics , activation energy , limiting , aldehyde , organic chemistry , catalytic hydrogenation , inorganic chemistry , nuclear chemistry , mechanical engineering , physics , quantum mechanics , engineering
The ruthanium‐catalyzed hydrogenation of acetic acid to ethanol was conducted at 140–230° under hydrogen pressure of 40.8–81.6 atm with a catalyst loading of 4 g/L. The best rate expression to fit the experimental results is Kinetic data at 230° were obtained with an average error of 7%. It is concluded that the rate limiting step is the first addition of hydrogen to acetic acid to produce aldehyde and water as the intermediates. The activation energy is 12.7 kcal/mole.