Journal
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
Volume 80, Issue 2, Pages 215-220Publisher
OXFORD UNIV PRESS
DOI: 10.1080/09168451.2015.1088372
Keywords
glycerol; hydrogenolysis; Cu-ZnO; 1; 2-propanediol
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Funding
- Specialized Research Fund for the Doctoral Program of Higher Education [SRFDP-2012009111001]
- Natural Science Foundation of Jiangsu Province [BK2010304]
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The catalytic properties of Cu-ZnO catalysts for glycerol hydrogenolysis to 1,2-propanediol (1,2-PDO) were tested in a fixed-bed reactor at 250 degrees C and 2.0MPa H-2. The relation between composition, surface properties, and catalytic performance of glycerol hydrogenation of Cu-ZnO catalysts was studied using nitrogen adsorption (BET methods), XRD, H-2 temperature-programmed reduction, and N2O chemisorptions. It was found that there was a close link between the surface CuO amount of Cu-ZnO catalyst and the reactivity for glycerol hydrogenation. The Cu-ZnO catalyst (Cu/Zn=1.86) which had the highest surface Cu amount showed the best catalytic activity for glycerol hydrogenolysis. Furthermore, Cu-ZnO catalyst presented good stability and remarkable catalytic activity for glycerol hydrogenolysis to 1,2-PDO using raw glycerol derived from the fat saponification as feedstock.
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