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Catalytic hydrogenolysis of glycerol mediated by ruthenium catalysts

Abstract

Demand by alternative fuels has been increasing, so the amount of biodiesel produced in recent years increased considerably. As a by-product of the biodiesel manufacture, the market value of glycerol is decreasing. So some synthetic routes for its conversion into other products with higher added value have been proposed. It is very important to develop a ‘new glycerol chemistry’, where the hydrogenolysis of glycerol to propanols and propanediols, products whose interest is related to the petrochemical industry and fine chemicals. The aim of this work is to study the hydrogenolysis of glycerol, using Ru, Pt or Pd-based catalysts supported on pillared clays, activated carbons and conducting polymers. Kinetic parameters, with emphasis on selectivity, and the mechanistic aspects related to the reactions will be evaluated. The effect of the glycerol purity in the hydrogenolysis process, i.e. pure glycerol and the glycerol obtained from the biodiesel process will also be evaluated. Additionally, the glycerol will be dehydrated to acetol, distilled and then submitted to the same catalytic process previously used for the glycerol hydrogenolysis. (AU)

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Scientific publications (6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ZANIN, C. I. C. B.; JORDAO, E.; MANDELLI, D.; FIGUEIREDO, F. C. A.; CARVALHO, W. A.; OLIVEIRA, E. V. Hydrogenolysis of glycerol to alcohols catalyzed by transition metals supported on pillared clay. Reaction Kinetics Mechanisms and Catalysis, v. 115, n. 1, p. 293-310, JUN 2015. Web of Science Citations: 4.
GALHARDO, THALITA S.; SIMONE, NATHALIA; GONCALVES, MARAISA; FIGUEIREDO, FLAVIA C. A.; MANDELLI, DALMO; CARVALHO, WAGNER A. Preparation of Sulfonated Carbons from Rice Husk and Their Application in Catalytic Conversion of Glycerol. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v. 1, n. 11, p. 1381-1389, NOV 2013. Web of Science Citations: 40.
GONCALVES, MARAISA; SOUZA, VICTOR C.; GALHARDO, THALITA S.; MANTOVANI, MICHELLE; FIGUEIREDO, FLAVIA C. A.; MANDELLI, DALMO; CARVALHO, WAGNER A. Glycerol Conversion Catalyzed by Carbons Prepared from Agroindustrial Wastes. Industrial & Engineering Chemistry Research, v. 52, n. 8, p. 2832-2839, FEB 27 2013. Web of Science Citations: 24.
RODRIGUES, R.; ISODA, N.; GONCALVES, M.; FIGUEIREDO, F. C. A.; MANDELLI, D.; CARVALHO, W. A. Effect of niobia and alumina as support for Pt catalysts in the hydrogenolysis of glycerol. CHEMICAL ENGINEERING JOURNAL, v. 198, p. 457-467, AUG 1 2012. Web of Science Citations: 37.
FONTANA‚ J.; VIGNADO‚ C.; JORDAO‚ E.; FIGUEIREDO‚ FCA; CARVALHO‚ WA. Evaluation of some supports to RuSn catalysts applied to dimethyl adipate hydrogenation. CATALYSIS TODAY, v. 172, n. 1, p. 27-33, 2011.
FONTANA, J.; VIGNADO, C.; JORDAO, E.; CARVALHO, W. A. Support effect over bimetallic ruthenium-promoter catalysts in hydrogenation reactions. CHEMICAL ENGINEERING JOURNAL, v. 165, n. 1, p. 336-346, NOV 15 2010. Web of Science Citations: 14.

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