NI SIO2 CATALYSTS, EFFECT OF NI REDUCTION ON ACTIVITY AND THIOTOLERANCE DURING ETHYLBENZENE HYDROGENATION/

Authors
SEPULVEDA J FIGOLI NS
Citation
J. Sepulveda et Ns. Figoli, NI SIO2 CATALYSTS, EFFECT OF NI REDUCTION ON ACTIVITY AND THIOTOLERANCE DURING ETHYLBENZENE HYDROGENATION/, Reaction kinetics and catalysis letters, 55(2), 1995, pp. 383-389
Citations number
14
Categorie Soggetti
Chemistry Physical
Journal title
Reaction kinetics and catalysis letters → ACNP
ISSN journal
01331736
Volume
55
Issue
2
Year of publication
1995
Pages
383 - 389
Database
ISI
SICI code
0133-1736(1995)55:2<383:NSCEON>2.0.ZU;2-0
Abstract
The effect of nickel reduction on Ni/SiO2 catalysts with various metal loadings on the activity and thiotolerance during the selective ethyl benzene hydrogenation has been studied. It was found that in the prese nce of Ni2+ species, there exists an icrease in thiotolerance, which i s attributed to a selective trapping effect of these species for the t hiophene molecules. 3-5 surface nickel atoms are affected by one thiop hene molecule, indicating that thiophene adsorption is mainly coplanar with the surface.