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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2677
Title: Synthesis of Propylene Carbonate from Propane-1,2-diol and Urea Using Hydrotalcite-Derived Catalysts
Authors: Yasir A.
Shukla K.
Srivastava V.C.
Published in: Energy and Fuels
Abstract: Propylene carbonate is an important organic carbonate having wide applications. In the present work, thermodynamic analysis of propylene carbonate synthesis routes was performed. Benson group contribution method and Rozicka-Domalski model were used to estimate the heat of formation and the heat capacities of some of the components, respectively. Urea alcoholysis was found to be a favorable method for producing propylene carbonate under mild conditions. This route was further studied experimentally using various MgAl and ZnAl hydrotalcite derived catalysts. The catalysts were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), N2 adsorption-desorption, and Fourier transform infrared spectroscopy (FTIR) techniques. Yield of PC was found to be strongly correlated to the basicity of catalysts. Addition of a third element, Ca or La, was found to reduce the surface area of the catalysts. Fluorinated MgAlO (MgAlO-F) was found to possess greater basicity than MgAlO and greater catalytic activity. The effect of reaction temperature and reaction time was also studied, and at the optimum conditions of 160 °C and 11 kPa, MgAlO-F gave 91% PC yield, 96% urea conversion with 95% selectivity in 3 h. © 2017 American Chemical Society.
Citation: Energy and Fuels (2017), 31(9): 9890-9897
URI: https://doi.org/10.1021/acs.energyfuels.7b01330
http://repository.iitr.ac.in/handle/123456789/2677
Issue Date: 2017
Publisher: American Chemical Society
ISSN: 8870624
Author Scopus IDs: 57195837069
57188985875
35565811700
Author Affiliations: Yasir, A., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Shukla, K., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Srivastava, V.C., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Corresponding Author: Srivastava, V.C.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: vimalcsr@yahoo.co.in
Appears in Collections:Journal Publications [CH]

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