Structure-activity relations for Ni-containing zeolites during NO reduction I. Influence of acid sites

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Mosqueda-Jiménez, B.I. and Jentys, A. and Seshan, K. and Lercher, J.A. (2003) Structure-activity relations for Ni-containing zeolites during NO reduction I. Influence of acid sites. Journal of Catalysis, 218 (2). pp. 348-353. ISSN 0021-9517

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Abstract:The influence of the zeolite structure on the catalytic properties for the reduction of NO with propane and propene was studied. A relation between concentration and strength of acid sites and the activity of Ni-exchanged ZSM-5, MOR, and MCM-22 was found. Ni/ZSM-5, which contains a high concentration of strong acid sites, is the most active catalyst for the NO reduction with propane. Using propene as reductant Ni/ZSM-5 and Ni/MCM-22 rapidly deactivate due to the acid site-catalyzed formation of carbonaceous deposits, while Ni/MOR is less affected by the deposits formed because of its larger pore size.
Item Type:Article
Copyright:© 2003 Elsevier
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/75022
Official URL:http://dx.doi.org/10.1016/S0021-9517(03)00145-3
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