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Catalysts 2016, 6(4), 51; doi:10.3390/catal6040051

Hydrogenolysis of Glycerol to 1,2-Propanediol and Ethylene Glycol over Ru-Co/ZrO2 Catalysts

1
College of Chemistry and Chemical Engineering, Chongqing University of Science & Technology, Chongqing 401331, China
2
Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
*
Author to whom correspondence should be addressed.
Academic Editor: Keith Hohn
Received: 2 February 2016 / Revised: 12 March 2016 / Accepted: 22 March 2016 / Published: 25 March 2016
View Full-Text   |   Download PDF [1944 KB, uploaded 25 March 2016]   |  

Abstract

A series of ZrO2 supported Ru-Co bimetallic catalysts were prepared and evaluated for the hydrogenolysis of glycerol. The Ru-Co/ZrO2 bimetallic catalyst combines the advantages of both Ru and Co, exhibiting high activity and good selectivity to 1,2-propanediol. The X-ray diffraction (XRD) and TEM results show that higher calcination temperature leads to lower reducibility of cobalt oxides and larger metal particle size, which is responsible for the decrease of glycerol conversion. Increasing the reduction temperature causes an inhibition effect on the catalytic activity, but it is beneficial to promote the 1,2-propanediol selectivity. The low temperature (<300 °C) reduction can prevent the growth of metal particles, resulting in higher activity. Co oxide is an important component for the good performance of Ru-Co/ZrO2. The reaction temperature, hydrogen pressure, and glycerol concentration have significant effects on the catalytic performance of the Ru-Co/ZrO2 catalyst. View Full-Text
Keywords: glycerol; hydrogenolysis; ruthenium; cobalt; 1,2-propanediol; ethylene glycol glycerol; hydrogenolysis; ruthenium; cobalt; 1,2-propanediol; ethylene glycol
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Feng, J.; Zhang, Y.; Xiong, W.; Ding, H.; He, B. Hydrogenolysis of Glycerol to 1,2-Propanediol and Ethylene Glycol over Ru-Co/ZrO2 Catalysts. Catalysts 2016, 6, 51.

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