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Kinetics of the catalytic dehydration of primary alcohols
Author(s) -
Miller Donald N.,
Kirk Robert S.
Publication year - 1962
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690080211
Subject(s) - dehydration , catalysis , chemistry , pellets , kinetics , mass transfer , atmospheric temperature range , butanol , reaction rate , chemical engineering , inorganic chemistry , ethanol , thermodynamics , organic chemistry , chromatography , materials science , composite material , biochemistry , physics , quantum mechanics , engineering
The catalytic dehydrations of n ‐butanol, n ‐propanol, and ethanol to produce water and the respective olefins were studied for the temperature range 400° to 700°F. and over the pressure range 1 atm. to 100 lb./sq. in. gauge. Silica‐alumina catalyst in bead form was used. Dehydration rates were found to be consistent with a single‐site surface reaction‐controlled mechanism in which was superimposed a mass transfer effect internal to the catalyst pellets. Rate constants for the three reactions are presented. The significances of their relative values and their temperature and pressure dependencies are discussed.