Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Experimental and Kinetic Studies of Esterification of Glycerol Using Combustion Synthesized SO42-/CeO2-Al2O3

  • Veluturla, Sravanthi (Department Of Chemical Engineering, M.S.Ramaiah Institute Of Technology) ;
  • Narula, Archna (Department Of Chemical Engineering, M.S.Ramaiah Institute Of Technology) ;
  • Rao, D. Subba (Department Of Chemical Engineering, Jawaharlal Nehru Technological University Anantapur) ;
  • Indraja., S (Department Of Chemical Engineering, M.S.Ramaiah Institute Of Technology) ;
  • Kulkarni, Rajeswari. M. (Department Of Chemical Engineering, M.S.Ramaiah Institute Of Technology)
  • Received : 2017.12.20
  • Accepted : 2018.05.16
  • Published : 2018.08.01
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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 $SO{_4}^{2-}/CeO_2-Al_2O_3$ as catalyst. The $CeO_2-Al_2O_3$ 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 ($k_1$, $k_2$ and $k_3$) were estimated using optimization method in MAT lab, and the activation energies ($E_1$, $E_2$ and $E_3$) were determined by the Arrhenius equation. Furthermore, a kinetic model was developed.

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References

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