Abstract
Gas phase hydrogenation of crotonaldehyde to crotyl alcohol, butyraldehyde, and butanol was studied in a differential microreactor at atmospheric pressure and 353 K over a supported Pt catalyst. The reaction rate was seen to be dependent on the catalyst pre-treatment mode. Rapid deactivation has been observed and the deactivation rate differed for differently treated samples. Kinetic modelling was based upon reaction a network, which apart from conventional dehydration steps included parallel hydrogenolysis to hydrocarbons. Deactivation phenomena were assumed to occur as a result of the formation of surface deposits, which block active catalyst sites. An adequate description of experimental data has been achieved via parameter estimation.
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