Catalytic hydrotreating of vegetable oils for the production of liquid biofuels

Authors

  • Elisa Volonterio Derivados de la Industria Alimentaria, Departamento de Ciencia y Tecnología de Alimentos, Facultad de Química, Universidad de la República, Montevideo, Uruguay
  • Juan Bussi Laboratorio de Fisicoquímica de Superficies, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones, Facultad de Química, Universidad de la República, Montevideo, Uruguay
  • Jorge Castiglioni Laboratorio de Fisicoquímica de Superficies, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones, Facultad de Química, Universidad de la República, Montevideo, Uruguay
  • Ignacio Vieitez Derivados de la Industria Alimentaria, Departamento de Ciencia y Tecnología de Alimentos, Facultad de Química, Universidad de la República, Montevideo, Uruguay
  • Iván Jachmanián Derivados de la Industria Alimentaria, Departamento de Ciencia y Tecnología de Alimentos, Facultad de Química, Universidad de la República, Montevideo, Uruguay

DOI:

https://doi.org/10.26461/14.01

Keywords:

Biofuels, hydrotreating, hydrodeoxygenation, biogasoil

Abstract

It is called «hydrotreating» the process comprising the exposure of a raw material to high temperature and high hydrogen pressure in presence of a convenient catalyst. Such process has gained interest in the feld of the renewable energies because it can be used to convert biomasses from different origin into biofuels. Particularly, if an edible fat or oil is destined to this type of process a blend of parafns and isoparafns suitable for the substitution of fossil diesel fuels can be obtained. Tis type of liquid biofuels has been called «bio-gasoil» (or «greendiesel»), and is a renewable alternative to gasoil with a higher quality than traditional biodiesel. In this work high oleic sunflower oil was processed in a batch reactor at 350 °C and 100 bar H2, using three different catalyst: NiMo/Al2O3, PtO2 and Pd/Al2O3. Afer 4 hs of reaction period yields of 89, 93 y 98 % (respectively) were achieved, determined as hydrocarbon concentration. Product composition suggests that conversion occurred through a complex mechanism involving hydrodeoxigenation, hydrodecarbonilation, hydrodecarboxilation and cracking.

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Published

2017-11-13

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Articles

How to Cite

Catalytic hydrotreating of vegetable oils for the production of liquid biofuels. (2017). INNOTEC, 14 jul-dic, 37-43. https://doi.org/10.26461/14.01