INVESTIGADORES
BOCANEGRA Sonia Alejandra
artículos
Título:
MODIFICATION OF SELECTIVITY AND CARBON DEPOSITION DURING THE INITIAL STAGES OF THE n-BUTANE DEHYDROGENATION OVER MONO AND BIMETALLIC CATALYSTS
Autor/es:
DRA. SONIA BOCANEGRA; ING. OSVALDO SCELZA; DR. SERGIO DE MIGUEL
Revista:
LATIN AMERICAN APPLIED RESEARCH
Editorial:
UNS Printing Office
Referencias:
Año: 2013 vol. 43 p. 131 - 135
ISSN:
0327-0793
Resumen:
The initial carbon deposition and the generation of dehydrogenating selectivity during the initial steps of the reaction are investigated for Pt and PtSn catalysts supported on pure and Na-doped alumina by using a pulse technique (injection of n-butane pulses). Results demonstrate that Pt support-ed on pure alumina is not a proper dehydrogenation catalyst. It shows a high hydrogenolytic and cracking behavior and an important carbon formation that deactivates the catalyst. However the combined presence of tin and sodium inhibits not only the car-bon deposition reactions but also the C-C breaking reactions, increasing in an important way the dehy-drogenating selectivity to the different butenes to a value about 80%.
