On deactivation of CrOx/La2O3/ZrO2 catalyst during n-octane dehydrocyclisation. I. Investigation of dehydrogenation capability by the homomolecular H-D exchange of molecular hydrogen

Authors
Ehwald, H Leibnitz, U Lieske, H
Citation
H. Ehwald et al., On deactivation of CrOx/La2O3/ZrO2 catalyst during n-octane dehydrocyclisation. I. Investigation of dehydrogenation capability by the homomolecular H-D exchange of molecular hydrogen, CATAL LETT, 70(1-2), 2000, pp. 23-26
Citations number
10
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
CATALYSIS LETTERS
ISSN journal
1011372X → ACNP
Volume
70
Issue
1-2
Year of publication
2000
Pages
23 - 26
Database
ISI
SICI code
1011-372X(2000)70:1-2<23:ODOCCD>2.0.ZU;2-N
Abstract
Based on the time on stream dependence of product distribution during deact ivation and on additional investigations of fresh and deactivated samples b y the homomolecular H-D exchange of molecular hydrogen, it is concluded, th at the deactivation during n-octane dehydrocyclisation on CrOx/La2O3/ZrO2 c atalysts is caused by a decreasing dehydrogenation capability of the active surface and not by increasing mass transport resistance.