THE ROLE OF THE OXIDIC SUPPORT ON THE DEACTIVATION OF PT CATALYSTS DURING THE CO2 REFORMING OF METHANE

Authors
BITTER JH HALLY W SESHAN K VANOMMEN JG LERCHER JA
Citation
Jh. Bitter et al., THE ROLE OF THE OXIDIC SUPPORT ON THE DEACTIVATION OF PT CATALYSTS DURING THE CO2 REFORMING OF METHANE, Catalysis today, 29(1-4), 1996, pp. 349-353
Citations number
10
Categorie Soggetti
Engineering, Chemical","Chemistry Applied","Chemistry Physical
Journal title
Catalysis today → ACNP
ISSN journal
09205861
Volume
29
Issue
1-4
Year of publication
1996
Pages
349 - 353
Database
ISI
SICI code
0920-5861(1996)29:1-4<349:TROTOS>2.0.ZU;2-D
Abstract
Pr supported on gamma-Al2O3, TiO2 and ZrO2 are active catalysts for th e CO2 reforming of methane to synthesis gas. The stability of the cata lysts increased in the order Pt/gamma-Al2O3 < Pt/TiO2 < Pt/ZrO2. For a ll catalysts, the decrease in activity with time on stream is caused b y carbon formation, which blocks the active metal sites for reaction. With Pt/TiO2 and Pt/ZrO2, deactivation started immediately after the s tart of the reaction, while the Pt/gamma-Al2O3 catalyst showed an indu ction period during which carbon was accumulated without affecting the catalytic activity.