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Factorial 24 experiments design to obtain biodiesel from chicken fat using CaO as catalyst

  • Jesús Ignacio Toledo Díaz,
  • Fernando Morales Anzures,
  • Raúl Pérez Hernández,
  • Jesús Hernández Ventura,
  • Francisco J. Tzompantzi Morales,
  • Mario A. Romero Romo,
  • Pastora Salinas Hernández

摘要

Biodiesel was obtained by transesterification of chicken fat and methanol using CaO from eggshells, through a factorial 24 experiment design to evaluate the influence of reaction variables. The fat was characterized through the: refractive index, saponification index, free fatty acids, density, and viscosity, giving as results 1.465, 183.166 mg KOH g−1, 1.623%, 0.919 g cm−1 and 63.337 cSt. The temperature was the variable with the greatest impact on biodiesel production. The optimal variables to achieve a viscosity of 5.918 cSt were: temperature 65°C, chicken fat (CF): methanol molar ratio 1:6, catalyst percentage 5% w/w and reaction time of 5 h.

Graphical abstract