Hydrodechlorination of dichlorodifluoromethane on carbon-supported Group VIII noble metal catalysts

Authors
Kulkarni, PP Deshmukh, SS Kovalchuk, VI d'Itri, JL
Citation
Pp. Kulkarni et al., Hydrodechlorination of dichlorodifluoromethane on carbon-supported Group VIII noble metal catalysts, CATAL LETT, 61(3-4), 1999, pp. 161-166
Citations number
54
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
CATALYSIS LETTERS
ISSN journal
1011372X → ACNP
Volume
61
Issue
3-4
Year of publication
1999
Pages
161 - 166
Database
ISI
SICI code
1011-372X(1999)61:3-4<161:HODOCG>2.0.ZU;2-Y
Abstract
Activated carbon-supported Group VIII noble metals formed CF2Cl2 oligomeriz ation products under hydrodechlorination conditions. All the catalysts unde rwent deactivation during first 15-20 h on stream at 250 degrees C independ ent of the H-2 partial pressure, with steady-state activity following the o rder: Pt > Pd >> Ir > Ru approximate to Os approximate to Rh. The Pd/C cata lyst exhibited high selectivity toward C-2-C-3 hydrocarbons (similar to 75% at CF2Cl2/H-2= 1). For the other catalysts except Pt, CF2=CF2 and CH2=CF2 were the main C2+ products.