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Isothermal desulfation of pre-sulfated Pt-BaO/γ-Al2O3 lean NOx trap catalysts with H2: The effect of H2 concentration and the roles of CO2 and H2O

✍ Scribed by Do Heui Kim; Ja Hun Kwak; János Szanyi; Charles H.F. Peden

Book ID
113460458
Publisher
Elsevier Science
Year
2012
Tongue
English
Weight
610 KB
Volume
111-112
Category
Article
ISSN
0926-3373

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Regeneration mechanism of Pt/BaO/Al2O3 l
Regeneration mechanism of Pt/BaO/Al2O3 lean NOx trap catalyst with H2
✍ S.S. Mulla; S.S. Chaugule; A. Yezerets; N.W. Currier; W.N. Delgass; F.H. Ribeiro 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 1018 KB

Regeneration of a Pt/BaO/Al 2 O 3 NO x storage-reduction catalyst was studied using H 2 as a model reductant. We propose that the regeneration process involves a localized reaction front of the reductant that travels through the catalyst bed with complete regeneration of the trapping sites. When NH