Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2385
Title: Conversion of glycerol into value-added products over Cu-Ni catalyst supported on ?-Al2O3 and activated carbon
Authors: Pudi S.M.
Mondal T.
Biswas, Prakash
Biswas S.
Sinha, Shishir N.
Published in: International Journal of Chemical Reactor Engineering
Abstract: A series of Cu, Ni monometallic and bimetallic catalysts supported on ?-Al2O3 and activated carbon were synthesized by incipient wetness impregnation method and examined for hydrogenolysis and esterification of glycerol. Hydrogenolysis reaction was carried out in a 250 ml Teflon-coated stainless steel batch reactor at 250°C and 10 bar H2 pressure, whereas esterification of glycerol with acetic acid was carried out at 120°C at atmospheric pressure. The physiochemical properties of the catalysts were investigated by various techniques such as surface area, X-ray diffraction (XRD), NH3erature-programmed desorption (TPD). Characterization results dictated that the reduction behavior, acidic nature and the metal support interactions were varied with the support as well as Cu/Ni weight ratio. The XRD results confirmed the formation of mixed oxide Cu0.75Ni0.25 Al2O4 phase in Cu-Ni (3:1)/?-Al2O3 catalyst. Among the catalysts tested, Cu-Ni bimetallic catalysts showed superior performance as compared to monometallic catalysts in both the reactions. The glycerol hydrogenolysis activity of ?-Al2O3 supported Cu-Ni catalysts was higher than the activated carbon-supported catalysts. 1,2-PDO was obtained as the main hydrogenolysis product independent of the support as well as Cu/Ni weight ratio and its selectivity was in the range of 92.8-98.5%. The acidic nature of ?-Al2O3 and the mixed oxide (Cu0.75Ni0.25Al2O4) phase played an important role for hydrogenolysis activity. Cu-Ni (3:1)/?-Al2O3 catalyst showed the maximum 1,2-PDO selectivity to 97% with 27% glycerol conversion after a reaction time of 5 h. On the other hand, Cu-Ni(1:3)/C catalyst showed the highest glycerol conversion of 97.4% for esterification and obtained selectivity to monoacetin, diacetin and triacetin were 26.1%, 67.2% and 6.5%, respectively. © 2014 by De Gruyter 2014.
Citation: International Journal of Chemical Reactor Engineering (2014), 12(1): -
URI: https://doi.org/10.1515/ijcre-2013-0102
http://repository.iitr.ac.in/handle/123456789/2385
Issue Date: 2014
Publisher: Walter de Gruyter GmbH
Keywords: Cu-Ni catalyst
esterification
glycerol
hydrogenation
ISSN: 15426580
Author Scopus IDs: 56378811100
56377750400
56220905200
57192318466
7403739121
Author Affiliations: Pudi, S.M., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Mondal, T., 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
Biswas, S., Center for Transportation System, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Sinha, S., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Corresponding Author: Biswas, P.; 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.