The transformation of cyclohexane on Zn/H-ZSM-5 zeolites

Authors
Sandulescu, I Jirka, L Rebrov, E Urda, A
Citation
I. Sandulescu et al., The transformation of cyclohexane on Zn/H-ZSM-5 zeolites, REV RO CHIM, 44(11-12), 1999, pp. 1107-1112
Citations number
13
Categorie Soggetti
Chemistry
Journal title
REVUE ROUMAINE DE CHIMIE
ISSN journal
00353930 → ACNP
Volume
44
Issue
11-12
Year of publication
1999
Pages
1107 - 1112
Database
ISI
SICI code
0035-3930(199911/12)44:11-12<1107:TTOCOZ>2.0.ZU;2-
Abstract
Samples of Zn/H-ZSM-5 zeolite were prepared by impregnation of the parent z eolite with Zn(NO3)(2). The state of zinc in the samples was analyzed by XP S measurements, (ald the degree of reduction for the zinc oxide on the ZSM- 5 zeolite surface in hydrogen atmosphere was determined, as well as the inf luence of this reducing treatment upon the activity and selectivity for aro matics of zeolites in aromatization of cyclohexane. It resulted that the de gree of reduction depends on the concentration of zinc in the zeolite and i s influenced by the presence of alumina binder. The results of the activity and selectivity to aromatics were correlated with the reduction of zinc ox ide.