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Partial Oxidation of Propylene Over Hydrophobic Catalysts in a Slurry Reactor
Author(s) -
Liang W.,
Chuang K. T.,
Zhou B.
Publication year - 1998
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500060307
Subject(s) - catalysis , slurry , chemical engineering , yield (engineering) , chemistry , particle (ecology) , selectivity , particle size , materials science , organic chemistry , composite material , oceanography , engineering , geology
Propylene partial oxidation over hydrophobic catalysts was studied in a slurry reactor. Due to the hydrophobicity of the catalyst, a direct reaction mechanism between the gas phase reactants and the catalyst was proposed for the reaction. The experimental results and the predictions based on this model are consistent, indicating that the proposed mechanism is reasonable for propylene oxidation over the hydrophobic catalyst. Also, due to the hydrophobicity and the low density of the catalyst, it is observed that there is non‐uniform catalyst particle distribution in the reactor. The effect of the catalyst particle non‐uniformity on the reaction is discussed and predictions are made based on the model. The effect of different operating conditions for the slurry reactor on propylene conversion, selectivity to CO 2 , and acrylic acid yield have been studied. A comparison between results obtained using the hydrophobic and hydrophilic catalysts shows the advantage of using the hydrophobic rather than hydrophilic catalysts for propylene partial oxidation in the slurry reactor, which is attributable to the direct reaction mechanism over the hydrophobic catalysts.