Linear α-alcohols production from supercritical ethanol over Cu/Al2O3 catalyst. (1st January 2019)

• Record Type: Journal Article
• Authors: Chistyakov, A.V.; Nikolaev, S.A.; Zharova, P.A.; Tsodikov, M.V.; Manenti, F.
• Is Part Of: Energy. Volume 166(2019)
• Page Start: 569
• Page End: 576
• Publication Date: 2019-01-01
• Subjects: Ethanol -- 1-Butanol -- Supercritical conditions -- Heterogeneous catalysis; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Energy consumption -- Periodicals; 333.7905
• DOI: 10.1016/j.energy.2018.10.071
• Languages: English
• ISSNs: 0360-5442

Abstract

Abstract: In this paper, Cu/Al2 O3 catalysts with different metal loadings was applied for the direct ethanol conversion into linear α-alcohols in the supercritical regime. 5% Cu/Al2 O3 catalyst was found to provide ethanol conversion into 1-butanol, 1-hexanol and 1-octanol with 80.2% selectivity of 1-butanol or total selectivity of linear α-alcohols of 95.5 at 33.5% conversion of ethanol. The supercritical conditions allow to increase catalysts productivity in comparison with subcritical regime. Kinetic features of the reaction and the effect of water content in the feed mixture were investigated. Highlights: The selectivity of the formation of linear α-alcohols from ethanol was 98.4%. Ethanol conversion and 1-butanol selectivity increased in supercritical regime. Ethanol conversion decreases proportionately to water content in feeding mixture. Kinetic parameters of the ethanol self condensation were determined.