Selective Hydrogenolysis of Glycerol to 1, 2 Propanediol Over Cu–ZnO Catalysts

A series of Cu–ZnO catalysts with varying Cu to Zn weight ratio are prepared by co-precipitation method. The catalysts were characterized by surface area, XRD, TPR and N 2 O chemisorption to measure Cu metal area. These catalysts were evaluated for hydrogenolysis of glycerol. The catalyst with Cu to...

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Bibliographic Details
Published inCatalysis letters Vol. 126; no. 1-2; pp. 119 - 124
Main Authors Balaraju, M., Rekha, V., Sai Prasad, P. S., Prasad, R. B. N., Lingaiah, N.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.11.2008
Springer
Springer Nature B.V
Subjects
Catalysis
Catalysts
Chemisorption
Chemistry
Chemistry and Materials Science
Conversion
Copper
Exact sciences and technology
General and physical chemistry
Glycerol
Hydrogenolysis
Industrial Chemistry/Chemical Engineering
Metal surfaces
Order parameters
Organic chemistry
Organometallic Chemistry
Physical Chemistry
Selectivity
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Zinc oxide
Glycerol
Zinc oxide
1,2 Propanediol
Copper oxide
Hydrogenolysis
Nitrogen oxide
Chemisorption
Binary compound
Particle size
Bifunctional catalyst
Acidic site
Transition element compounds
Selectivity
Conversion
X ray diffraction
Heterogeneous catalysis
Precipitation
Low pressure
Hydrogenolysis 1,2
Surface area
Propanediol
Nitrogen protoxide
Catalyst
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Summary:A series of Cu–ZnO catalysts with varying Cu to Zn weight ratio are prepared by co-precipitation method. The catalysts were characterized by surface area, XRD, TPR and N 2 O chemisorption to measure Cu metal area. These catalysts were evaluated for hydrogenolysis of glycerol. The catalyst with Cu to Zn ratio of 50:50 is highly active under relatively low H 2 pressure. The catalysts are highly selective towards 1,2 propanediol (>93%). The glycerol conversion depends upon the bifunctional nature of catalyst where it requires both acidic sites and metal surface. The presence of sufficient amount with small particle size of ZnO and Cu are required for high conversion of glycerol and selectivity to 1,2 propanediol. Different reaction parameters are studied in order to optimize the reaction conditions.
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-008-9590-6