Removal of NOx: Part II. Species formed during the sorption/desorption processes on barium aluminates

Authors
Hodjati, S Bernhardt, P Petit, C Pitchon, V Kiennemann, A
Citation
S. Hodjati et al., Removal of NOx: Part II. Species formed during the sorption/desorption processes on barium aluminates, APP CATAL B, 19(3-4), 1998, pp. 221-232
Citations number
20
Categorie Soggetti
Physical Chemistry/Chemical Physics","Environmental Engineering & Energy
Journal title
APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN journal
09263373 → ACNP
Volume
19
Issue
3-4
Year of publication
1998
Pages
221 - 232
Database
ISI
SICI code
0926-3373(199812)19:3-4<221:RONPIS>2.0.ZU;2-Y
Abstract
The formation of various species formed during the adsorption of NO, issued from a synthetic lean-burn exhaust gas upon barium aluminates was studied using FTIR and TGA. The results have been systematically compared to those obtained with bulk BaO. Two factors are responsible for the difference obse rved during adsorption/desorption tests on the two solids. On one hand, sta ble carbonates are formed on BaO whereas no carbonate is formed on barium a luminate. On the other hand, the structure of the nitrates formed on these two compounds is very different, an N-bounded nitrate is formed on barium a luminate and not on bulk BaO. (C) 1998 Elsevier Science B.V. All rights res erved.