Kinetics and Mechanism of Ethanol Dehydration on γ-Al2O3: The Critical Role of Dimer Inhibition

JF DeWilde, H Chiang, DA Hickman, CR Ho…

文献索引：DeWilde, Joseph F.; Chiang, Hsu; Hickman, Daniel A.; Ho, Christopher R.; Bhan, Aditya ACS Catalysis, 2013 , vol. 3, # 4 p. 798 - 807

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被引用次数: 44

摘要

Steady state, isotopic, and chemical transient studies of ethanol dehydration on γ-alumina show unimolecular and bimolecular dehydration reactions of ethanol are reversibly inhibited by the formation of ethanol–water dimers at 488 K. Measured rates of ethylene synthesis are independent of ethanol pressure (1.9–7.0 kPa) but decrease with increasing water pressure (0.4–2.2 kPa), reflecting the competitive adsorption of ethanol–water dimers with ethanol ...