Grasas y Aceites, Vol 53, No 2 (2002)

A short review about oil hydrogenation and its implementation in a supercritical process: sunflower oil case


https://doi.org/10.3989/gya.2002.v53.i2.310

Nancy Ajzenberg
Departamento de Ingeniería Química – E.T.S.E.I.B., Spain

Abstract


With 25 millions tons per year, the hydrogenated oil production is on the top in the food market. In this review we deal with the sunflower seed oil hydrogenation with special attention to the economy of the product, the reaction kinetic and parameters studies (like reactor, isomers production, catalyst). Furthermore we point out the necessities to use a new process considering ecological, safety and economic requirements. Then, using new catalysts based on Pt (instead of Ni) and a supercritical solvent, the trans isomers level can be reduced. Furthermore, the supercritical technology improves the process regarding reaction rate and solvent treatment.

Keywords


Hydrogenation; Solvent; Sunflower; Supercritical

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