Citation
F. Pinna et al., Consecutive hydrogenation of benzaldehyde over Pd catalysts - Influence ofsupports and sulfur poisoning, APP CATAL A, 219(1-2), 2001, pp. 195-200
Citations number
11
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
APPLIED CATALYSIS A-GENERAL
ISSN journal
0926860X
→ ACNP
Volume
219
Issue
1-2
Year of publication
2001
Pages
195 - 200
Database
ISI
SICI code
0926-860X(20011005)219:1-2<195:CHOBOP>2.0.ZU;2-A
Abstract
Pd catalysts on different supports (active carbon, silica, alumina) were st
udied for the selective hydrogenation of benzaldehyde to benzyl alcohol. Th
ey were characterized by TPR, CO chemisorption and XRD. Batch hydrogenation
tests were performed before and after sulfur poisoning. Strong metal-suppo
rt interaction was found for Pd/alumina, giving high Pd dispersion. Chemiso
rption stoichiometry Pd/CO = 2 was confirmed again. While Pd/C has the high
est activity for benzaldehyde hydrogenation, a satisfactory selectivity to
benzyl alcohol requires an oxidic carrier or proper sulfur poisoning of Pd/
C. (C) 2001 Elsevier Science B.V. All rights reserved.