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NOx selective catalytic reduction over supported metallic catalysts
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Chemical Technology.ORCID iD: 0000-0001-9391-7552
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Chemical Technology.
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Chemical Technology.
2009 (English)In: Catalysis Today, ISSN 0920-5861, E-ISSN 1873-4308, Vol. 147, S279-S284 p.Article in journal (Refereed) Published
Abstract [en]

In this work we present the results obtained with 3 catalysts (Pt, Rh and Ag on alumina) tested in ranges of temperatures and gas hourly space velocities typical of diesel engines in real trucks. NO concentration was 500 ppm, C3H6 ranged between 500 and 2000 ppm, while oxygen was always 5%. All the catalysts were active and showed high conversions. Both Pt and Rh were active at low temperature (T-50 = 200-250 degrees C) but had quite high selectivity towards NO2. Silver was active at higher temperature, but showed very high selectivity towards N-2. A strong boosting effect on NO conversion was recorded if H-2 was added to the gas mixture.

Place, publisher, year, edition, pages
2009. Vol. 147, S279-S284 p.
Keyword [en]
HC-SCR, DeNO(x), Alumina, H-2 effect, Steam
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-30687DOI: 10.1016/j.cattod.2009.07.045ISI: 000269990800046Scopus ID: 2-s2.0-69249222494OAI: oai:DiVA.org:kth-30687DiVA: diva2:402953
Note

QC 20110310 3rd International Conference on Structured Catalysts and Reactors (ICOSCAR-3), Ischia, ITALY, SEP 27-30, 2009

Available from: 2011-03-10 Created: 2011-03-04 Last updated: 2016-12-09Bibliographically approved

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Lanza, Roberto

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