Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2383
Title: Liquid phase conversion of Glycerol to Propanediol over highly active Copper/Magnesia catalysts
Authors: Pudi S.M.
Zoeb A.
Biswas, Prakash
Kumar S.
Published in: Journal of Chemical Sciences
Abstract: Abstract In this work, a series of Cu/MgO catalysts with different copper metal loading were prepared by the precipitation-deposition method. Their catalytic behaviour was investigated for glycerol hydrogenolysis to 1,2-propanediol (1,2-PDO). The physico-chemical properties of the catalysts were characterized by various techniques such as BET surface area, X-ray diffraction (XRD), temperature programmed reduction (TPR), NH<inf>3</inf>-temperature programmed desorption (NH<inf>3</inf>-TPD) and scanning electron microscopy (SEM) methods. The characterization results showed that the copper metal was well-dispersed over MgO support and a new phase Cu-MgO was also identified from XRD results after calcination. The 25Cu/MgO (Cu:25 wt%) catalyst exhibited the highest glycerol conversion of 88.7% and 1,2-PDO selectivity of 91.7% at 210°C, 4.5 MPa of hydrogen pressure after 12 h. The high glycerol conversion was mainly due to the Cu dispersion on MgO support and high acidic strength. Further, the effects of temperature, hydrogen pressure, catalyst loading and glycerol concentration were studied over 25Cu/MgO catalyst for optimization of reaction parameters. Kinetic study over highly active 25Cu/MgO catalyst showed that the reaction followed the pseudo second order rate with respect to glycerol and the apparent activation energy was found to be 28.7 ± 0.8 kcal/mol. © 2015 Indian Academy of Sciences.
Citation: Journal of Chemical Sciences (2015), 127(5): 833-842
URI: https://doi.org/10.1007/s12039-015-0838-6
http://repository.iitr.ac.in/handle/123456789/2383
Issue Date: 2015
Publisher: Springer India
Keywords: 1,2-propanediol
Cu/MgO catalysts
Glycerol hydrogenolysis
kinetic study
ISSN: 9743626
Author Scopus IDs: 56378811100
56741261700
56220905200
57209548014
Author Affiliations: Pudi, S.M., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Zoeb, A., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Biswas, P., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Kumar, S., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Corresponding Author: Pudi, S.M.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia
Appears in Collections:Journal Publications [CH]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.