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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2379
Title: Vapor phase hydrogenolysis of glycerol to 1,2-propanediol over ?-Al2O3 supported copper or nickel monometallic and copper-nickel bimetallic catalysts
Authors: Pandhare N.N.
Pudi S.M.
Biswas, Prakash
Sinha, Shishir N.
Published in: Journal of the Taiwan Institute of Chemical Engineers
Abstract: Vapor phase hydrogenolysis of glycerol was investigated over ?-Al2O3 supported copper or nickel monometallic and copper-nickel bimetallic catalysts prepared by incipient wetness impregnation method. Catalytic results demonstrated that bimetallic catalysts were more selective to 1,2-propanediol (1,2-PDO) as compare to monometallic catalysts. Bimetallic copper-nickel phase promoted the selective hydrogenolysis of C-O bond and limited the cleavage of C-C bond which significantly reduced the formation of undesirable products. Very high 1,2-PDO yield of 88% at 98.5% glycerol conversion was achieved over 20 wt% Cu-Ni (1:1)/?-Al2O3 catalyst at very low hydrogen to glycerol mole ratio of 54.6 and at 220 °C and 0.75 MPa pressure. Superior performance of 20 wt% Cu-Ni (1:1)/?-Al2O3 catalyst was attributed to strong synergetic interaction due to the formation of copper-nickel bimetallic phase as confirmed by the XRD result. Times-on-stream study and the characterization results of the spent catalyst confirmed the structural stability of the copper-nickel bimetallic phase of 20 wt% Cu-Ni (1:1)/?-Al2O3 catalyst and negligible carbon deposition (0.03 mmol carbon gcat-1 h-1) on the catalyst after prolonged contact under hydrogen environment. © 2016 Taiwan Institute of Chemical Engineers.
Citation: Journal of the Taiwan Institute of Chemical Engineers (2016), 61(): 90-96
URI: https://doi.org/10.1016/j.jtice.2015.12.028
http://repository.iitr.ac.in/handle/123456789/2379
Issue Date: 2016
Publisher: Taiwan Institute of Chemical Engineers
Keywords: 1,2-propanediol
Catalyst stability
Copper-nickel bimetallic catalyst
Glycerol hydrogenolysis
Vapor phase
ISSN: 18761070
Author Scopus IDs: 57092692100
56378811100
56220905200
7403739121
Author Affiliations: Pandhare, N.N., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand, 247667, India
Pudi, S.M., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand, 247667, India
Biswas, P., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand, 247667, India
Sinha, S., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand, 247667, India
Corresponding Author: Biswas, P.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: prakbfch@iitr.ac.in
Appears in Collections:Journal Publications [CH]

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