INVESTIGADORES
MAZZIERI Vanina Alejandra
artículos
Título:
Influence of the operating conditions and kinetic analysis of theselective hydrogenation of oleic acid on Ru?Sn?B/Al2O3catalysts
Autor/es:
MARIA A. SÁNCHEZ; YANNICK POUILLOUX; VANINA A. MAZZIERI; CARLOS L. PIECK
Revista:
APPLIED CATALYSIS A-GENERAL
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 467 p. 552 - 558
ISSN:
0926-860X
Resumen:
tThe influence of the operating conditions on the selectivity and activity of Ru?Sn?B/Al2O3catalysts forthe hydrogenation of oleic acid to oleyl alcohol was studied. It was found that the Ru?Sn?B/Al2O3catalystis selective to oleyl alcohol while Ru or Ru?B/Al2O3catalysts are not selective to produce oleyl alcohol.The electronic and catalytic properties of Ru are modified by the strong interaction between Sn and B.The incorporation of Sn leads to catalysts capable of producing oleyl alcohol.The experiments of oleic acid hydrogenation showed that an increase in reaction temperature leadsto an increase in activity while the selectivity to oleyl alcohol goes through a maximum. This is becausethe reactions of hydrogenation of C C double bond have lower activation energies than hydrogenolyticreactions. The increase in operating pressure has a positive effect on conversion and a more importanteffect on selectivity. A very simple first order kinetic model is proposed and reasonably represents theresults obtained. This model can be useful to compare catalyst performance more rationally.
