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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2381
Title: Esterification of glycerol with acetic acid over highly active and stable alumina-based catalysts: A reaction kinetics study
Authors: Rane S.A.
Pudi S.M.
Biswas, Prakash
Published in: Chemical and Biochemical Engineering Quarterly
Abstract: The catalytic activity of Cu- or Ni monometallic and Cu-Ni bimetallic (Cu/Ni ratio = 3, 1, 0.33) catalysts supported on ?-Al2O3 and SO42-/?-Al2O3 catalysts were evaluated for esterification of glycerol. The reactions were performed in a batch reactor under reflux at standard reaction conditions: temperature 110 °C, atmospheric pressure, glycerol to acetic acid molar ratio 1:9, and catalyst loading 0.25 g. The best catalytic activity was observed over 2 M SO42-/?-Al2O3 catalyst, which showed the glycerol conversion of 97 % within 2 hours of reaction. At this condition, the selectivity to glyceryl monoacetate (MAG), glyceryl diacetate (DAG), and glyceryl triacetate (TAG) were 27.0 %, 49.9 % and 23.1 %, respectively, after 5 h of reaction. After three consecutive runs, the 2 M SO42-/?-Al2O3 catalysts showed superior performance and no loss in activity was observed. The reaction kinetics results over 2 M SO42-/?-Al2O3 catalyst showed that the dependence on the reaction rate to glycerol concentration was of pseudo-second order, while the activation energy was found to be 106 kJ mol-1.
Citation: Chemical and Biochemical Engineering Quarterly (2016), 30(1): 33-45
URI: https://doi.org/10.15255/CABEQ.2014.2093
http://repository.iitr.ac.in/handle/123456789/2381
Issue Date: 2016
Publisher: Assoc. of Chemists and Chemical Engineers of Croatia
Keywords: Cu-Ni bimetallic catalysts
DAG and TAG selectivity
Glycerol esterification
SO42-/?-Al2O3 catalyst
Stability
ISSN: 3529568
Author Scopus IDs: 36182582700
56378811100
56220905200
Author Affiliations: Rane, S.A., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
Pudi, S.M., 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
Corresponding Author: Biswas, P.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: prakbfch@iitr.ernet.in
Appears in Collections:Journal Publications [CH]

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