INCAPE   05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
artículos
Título:
DEACTIVATION STUDY OF Ru-Sn-B/Al2O3 CATALYSTS DURING SELECTIVE HYDROGENATION OF METHYL OLEATE TO FATTY ALCOHOL
Autor/es:
MARÍA A. VICERICH, ; LAURA B. GUTIERREZ; MARÍA A. SÁNCHEZ, ; ESTEBAN GIORIA; VANINA A. MAZZIERI; CARLOS L. PIECK
Revista:
THE CANADIAN JOURNAL OF CHEMICAL ENGINEERING
Editorial:
JOHN WILEY & SONS INC
Referencias:
Lugar: New York; Año: 2018 vol. 97 p. 2333 - 23339
ISSN:
0008-4034
Resumen:
In this work the deactivation of the Ru-Sn-B/Al2O3 catalyst prepared by the incipient wetness method in the selective hydrogenation reaction of methyl oleate to fatty alcohol was studied. There was a decrease in both activity and selectivity of fatty alcohol during successive reaction experiments. The "fresh" and "deactivated" catalysts were evaluated by different techniques such as TPR, XPS, TGA, Raman and FTIR to determine the deactivation causes. Lower Ru and Sn content was found in the deactivated catalyst due to the loss of the active material during hydrogenation reaction. As the metal loss was more important for Ru than for Sn, the Ru/Sn ratio was changed leading to a decrease of the selectivity. Moreover, the analysis of the XPS peak by deconvolution of Sn species suggests the more active (SnOx) species for selective hydrogenation are more affected than the less selective (SnOy). Coke deposition was not observed by Raman and FTIR.