Gas‐Phase Hydrogenolysis of Glycerol Catalyzed by Cu/MOx Catalysts. Issue 1 (12th December 2012)

• Record Type: Journal Article
• Authors: Feng, Y.; Yin, H.; Shen, L.; Wang, A.; Shen, Y.; Jiang, T.
• Is Part Of: Chemical engineering & technology. Volume 36:Issue 1(2013:Jan.)
• Page Start: 73
• Page End: 82
• Publication Date: 2012-12-12
• Subjects: Chemical engineering -- Periodicals; Chemical processes -- Periodicals; 660.05
• DOI: 10.1002/ceat.201200263
• Languages: English
• ISSNs: 0930-7516

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The catalytic activities of Cu/MO_x (MO_x = Al₂O₃, TiO₂, and ZnO) catalysts in the gas‐phase hydrogenolysis of glycerol were studied at 180–300 °C under 0.1 MPa of H₂. Cu/MO_x (MO_x = Al₂O₃, TiO₂, and ZnO) catalysts were prepared by the incipient wetness impregnation method. After reduction, CuO species were converted to metallic copper (Cu⁰). Cu/Al₂O₃ catalysts with high acidity, high specific surface areas and small metallic copper size favored the formation of 1, 2‐propanediol with a maximum selectivity of 87.9 % at complete conversion of glycerol and a low reaction temperature of 180 °C, and favored the formation of ethylene glycol and monohydric alcohols at high reaction temperature of 300 °C. Cu/TiO₂ and Cu/ZnO catalysts exhibited high catalytic activity toward the formation of hydroxyacetone with a selectivity of approx. 90 % in a wide range of reaction temperature.</p> </abstract>