R. A. Bagdatov, G. I. Konstantinov, I. S. Levin, O. V. Arapova, A. V. Chistyakov
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The Effects of Water on Self-Condensation of Ethanol over Copper-Based Catalysts
The study investigates the effects of byproduct water from ethanol self-condensation on the performance of a 2%Cu/γ-Al2O3 catalyst. It was found that water accumulation in the reaction mixture inhibits the self-condensation of ethanol into linear primary alcohols (1-butanol, 1-hexanol, and 1-octanol). XRD and NH3-TPD characterization revealed that 12 h of operation reduced the overall catalyst acidity and caused partial phase transition from γ-Al2O3 to boehmite, both effects likely caused by contact with water produced during the reaction. SEM and IR spectroscopy demonstrated structural changes in the catalyst surface. The yield of linear primary alcohols increased through the use of dehydrated ethanol or the addition of potassium carbonate to bind the water produced.
期刊介绍：
Petroleum Chemistry (Neftekhimiya), founded in 1961, offers original papers on and reviews of theoretical and experimental studies concerned with current problems of petroleum chemistry and processing such as chemical composition of crude oils and natural gas liquids; petroleum refining (cracking, hydrocracking, and catalytic reforming); catalysts for petrochemical processes (hydrogenation, isomerization, oxidation, hydroformylation, etc.); activation and catalytic transformation of hydrocarbons and other components of petroleum, natural gas, and other complex organic mixtures; new petrochemicals including lubricants and additives; environmental problems; and information on scientific meetings relevant to these areas.
Petroleum Chemistry publishes articles on these topics from members of the scientific community of the former Soviet Union.
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