The role of support acidity in the selective catalytic reduction of NO by C3H6 under lean-burn conditions

Authors
Giroir-Fendler, A Denton, P Boreave, A Praliaud, H Primet, M
Citation
A. Giroir-fendler et al., The role of support acidity in the selective catalytic reduction of NO by C3H6 under lean-burn conditions, TOP CATAL, 16(1-4), 2001, pp. 237-241
Citations number
14
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
TOPICS IN CATALYSIS
ISSN journal
10225528 → ACNP
Volume
16
Issue
1-4
Year of publication
2001
Pages
237 - 241
Database
ISI
SICI code
1022-5528(2001)16:1-4<237:TROSAI>2.0.ZU;2-2
Abstract
Mechanical mixtures consisting of a catalyst (Pt/SiO2 or Pt/SiO2-Al2O3) and supports of varying acidity (hydrotalcite, SiO2, SiO2-Al2O3, and ZSM-5 zeo lite) were tested for the selective reduction of NO by C3H6. A certain degr ee of support acidity appears to favour N-2 selectivity, but if there are t oo many acid sites, carbon deposition becomes extensive and leads to cataly st deactivation.