Artículo
Evaluation of hydrogen transfer in FCC catalysts. A new approach for cyclohexene as a test reactant
Fecha de publicación:
02/2000
Editorial:
Elsevier
Revista:
Chemical Engineering Science
ISSN:
0009-2509
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The conversion of cyclohexene over different commercial FCC catalysts in a batch fluidized-bed reactor under very short contact times at 300°C, was described by means of a simple lumped kinetic model that accounted for the observed yield patterns. The main branch of reaction starting from the adsorption of cyclohexene was used to assess an index based on kinetic parameters that defines the relative significance of hydrogen transfer reactions in a set that also includes proton transfer and cracking reactions. Complementary experiments with pulses of reactant on a fixed-bed reactor allowed to establish the best temperature to obtain maximum sensitivity to hydrogen transfer. The same evolutions were observed for the relationships between the index of hydrogen transfer and the paired acid site density with the Y zeolite unit cell size, confirming that two regions can be defined separated by unit cell sizes of about 24.28–24.30 Å, the correlations being stronger at low values of this parameter.
Palabras clave:
Hydrogen Transfer
,
Fcc
,
Cyclohexene
,
Y Zeolite
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Articulos(INCAPE)
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Citación
de la Puente, Gabriela; Sedran, Ulises Anselmo; Evaluation of hydrogen transfer in FCC catalysts. A new approach for cyclohexene as a test reactant; Elsevier; Chemical Engineering Science; 55; 4; 2-2000; 759-765
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