10.1007/s40097-019-00317-w

Process optimization of biodiesel production catalyzed by CaO nanocatalyst using response surface methodology

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  • Priyanka Bharti1,
  • Bhaskar Singh1,
  • R. K. Dey*2,
  1. Department of Environmental Sciences, Central University of Jharkhand, Ranchi, 835205, IN
  2. Department of Chemistry, Central University of Jharkhand, Ranchi, 835205, IN
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Published in Issue 24-09-2019

How to Cite

Bharti, P., Singh, B., & Dey, R. K. (2019). Process optimization of biodiesel production catalyzed by CaO nanocatalyst using response surface methodology. Journal of Nanostructure in Chemistry, 9(4 (December 2019). https://doi.org/10.1007/s40097-019-00317-w
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Abstract

Abstract Uses of nanocatalysts have become more useful in optimizing catalytic reactions. They are known to enhance the rate of reaction by offering a greater number of active sites by possessing a high surface-to-volume ratio. In the present work, calcium oxide nanocatalysts were synthesized through the sol–gel method. The particle size of the nanocatalyst prepared ranged up to 8 nm. Soybean oil was used as the raw material for the synthesis of biodiesel. The synthesized nano-CaO was characterized through scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and BET (Brunauer–Emmett–Teller). Average BET surface area analysis of the nanocatalyst was calculated to be 67.781 m 2 /g and pore diameter was 3.302 nm. Nano-CaO catalyst was used to synthesize biodiesel and optimize the reaction variables through optimization processes to achieve a high yield of biodiesel. The reaction variables that were optimized were catalyst amount, oil to methanol molar ratio and reaction temperature. Upon optimization, the conversion of biodiesel was found to be 97.61%. The optimized value of the reaction variables was: catalyst amount of 3.675 wt% with respect to oil, molar ratio (alcohol to oil) of 11:1, and reaction temperature of 60 °C for 2 h. Graphic abstract

Keywords

  • Biodiesel,
  • Calcium oxide (CaO),
  • Nanocatalyst,
  • Response surface methodology
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