INCAPE 05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
artículos
Título:
Liquid-phase dehydration of 1-phenylethanol over HZSM-5. Kinetic modeling
Autor/es:
N. BERTERO; C.R. APESTEGUÍA; A MARCHI
Revista:
CATALYSIS COMMUNICATIONS
Editorial:
Elsevier
Referencias:
Año: 2009 vol. 10 p. 1339 - 1344
ISSN:
1566-7367
Resumen:
The liquid-phase dehydration of 1-phenylethanol over HZSM-5 zeolite (Si/Al=20), at 353-373 K and using cyclohexane as solvent, was studied. Varying initial reactant concentration, a negative order respect to 1-phenylethanol was determined. In all cases, HZSM-5 resulted highly selective to styrene. Experimental data were fitted using LHHW-like kinetic models. Both physical and statistical criteria were applied to discriminate the best heterogeneous kinetic model. The most satisfactory fitting was obtained assuming that styrene is formed from 1-phenylethanol interacting simultaneously with two active sites. This mechanism explains the negative order respect to 1-phenylethanol.
