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Received December 20, 2017
Accepted May 16, 2018
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Experimental and Kinetic Studies of Esterification of Glycerol Using Combustion Synthesized SO4-2./CeO2-Al2O3
Department Of Chemical Engineering, M.S.Ramaiah Institute Of Technology, MSR Nagar, Bangalore,, Karnataka, 560054, India 1Department Of Chemical Engineering, Jawaharlal Nehru Technological University Anantapur, Ananthapuramu, Andhra Pradesh, 515002, India
sravanthi.v@msrit.edu
Korean Chemical Engineering Research, August 2018, 56(4), 592-599(8), 10.9713/kcer.2018.56.4.592 Epub 3 August 2018
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Abstract
An increase in the global production of biodiesel has resulted in the newfound significance of its byproduct, glycerol. The synthesis of acetins is an economical avenue to enhance the value of glycerol derived from biodiesel. WE developed an eco-friendly process for the synthesis of fuel additives from glycerol using a mixed oxide SO4 2-/ CeO2- Al2O3 as catalyst. The CeO2- Al2O3 mixed oxide was synthesized by the combustion method and then sulfated. The characterization of the catalyst was by means of XRD, BET, FTIR, and SEM. The influence of temperature, mole ratio and catalyst loading on yield and selectivity of the acetins was studied for the esterification of glycerol. The reaction rate constants (k1, k2 and k3) were estimated using optimization method in MAT lab, and the activation energies (E1, E2 and E3) were determined by the Arrhenius equation. Furthermore, a kinetic model was developed.
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Swetha S, Pandian M, Anand BH, Ganapati VS, RSC Advances, 5, 104354 (2015)
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