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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2714
Title: Glycerol Carbonate Synthesis by Hierarchically Structured Catalysts: Catalytic Activity and Characterization
Authors: Kumar P.
With P.
Srivastava, Vimal Chandra
Gläser R.
Mishra I.M.
Published in: Industrial and Engineering Chemistry Research
Abstract: The surge in biodiesel production in recent years has resulted in enhanced research interest in the conversion of glycerol to other valuable chemicals such as glycerol carbonate (GLC). In the present study, the catalytic transesterification of glycerol with dimethyl carbonate (DMC) for the production of GLC was studied with calcium-lanthanum mixed-oxide catalysts at different Ca/La molar ratios. These catalysts were synthesized using an exo- and endotemplating method. The physicochemical characteristics of the catalysts were determined using powder X-ray diffraction (XRD), N2 sorption, scanning electron microscopy (SEM), and temperature-programmed desorption (TPD) of CO2 and NH3. The transesterification of glycerol was found to be highly dependent on the basicity of the catalysts. The catalyst with a Ca/La molar ratio of 3 (3CaLa) showed the highest glycerol conversion and GLC yield. Optimization of the reaction parameters and reusability of the catalyst were studied with the 3CaLa catalyst in terms of glycerol conversion, GLC yield, and turnover frequency (TOF). At the optimum operating conditions, namely, a reaction time of 90 min, a DMC/glycerol molar ratio of 5, a catalyst mass of 0.217 g, and a temperature of 90 °C, the glycerol conversion and GLC yield were found to be 94% and 74%, respectively, with a reaction rate of ?0.14 mol L-1 h-1 (with respect to glycerol). © 2015 American Chemical Society.
Citation: Industrial and Engineering Chemistry Research (2015), 54(50): 12543-12552
URI: https://doi.org/10.1021/acs.iecr.5b03644
http://repository.iitr.ac.in/handle/123456789/2714
Issue Date: 2015
Publisher: American Chemical Society
ISSN: 8885885
Author Scopus IDs: 57164203600
36159965000
35565811700
7202586559
23668474600
Author Affiliations: Kumar, P., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India, Institute of Chemical Technology, Universität Leipzig, Linnéstraße 3, Leipzig, 04103, Germany
With, P., Institute of Chemical Technology, Universität Leipzig, Linnéstraße 3, Leipzig, 04103, Germany
Srivastava, V.C., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Gläser, R., Institute of Chemical Technology, Universität Leipzig, Linnéstraße 3, Leipzig, 04103, Germany
Mishra, I.M., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India, Department of Chemical Engineering, Indian School of Mines, Dhanbad, Jharkand 826004, India
Funding Details: P.K. is thankful to Deutscher Akademischer Austausch Dienst (DAAD), Germany, for providing financial support to carry out this work under a Sandwich Model Scholarship.
Corresponding Author: Kumar, P.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: praveen.zon@gmail.com
Appears in Collections:Journal Publications [CH]

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