Artículo
Partial hydrogenation of sunflower oil: Use of edible modifiers of the cis/trans-selectivity
Tonetto, Gabriela Marta
; Sánchez Morales, Jhon Freddy
; Ferreira, María Luján
; Damiani, Daniel Eduardo
Fecha de publicación:
02/2009
Editorial:
Elsevier Science
Revista:
Journal of Molecular Catalysis A: Chemical
ISSN:
1381-1169
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The partial hydrogenation of sunflower oil with minimum trans-isomer formation is studied, using a Pd/γ-alumina catalyst modified with promoters apt for human consumption: ethyl benzoate and magnesium glycinate. It was found that the hydrogenation rate diminishes with the additions of the modifiers. Regarding the cis/trans-selectivity, significant differences were found: ethyl benzoate promoted the formation of trans-isomers, whereas magnesium glycinate diminished it. The results can be interpreted in terms of different effects: change in the electron density of palladium, which affects the relative adsorption strength of the reactant, intermediates and hydrogen, and a block of part of the surface by the modifiers. Theoretical calculations were performed to support this hypothesis.
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Identificadores
Colecciones
Articulos(PLAPIQUI)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Citación
Tonetto, Gabriela Marta; Sánchez Morales, Jhon Freddy; Ferreira, María Luján; Damiani, Daniel Eduardo; Partial hydrogenation of sunflower oil: Use of edible modifiers of the cis/trans-selectivity; Elsevier Science; Journal of Molecular Catalysis A: Chemical; 299; 1-2; 2-2009; 88-92
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