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Catalytic removal of NOx and soot from diesel exhaust: Oxidation behaviour of carbon materials used as model soot

Paper ID Volume ID Publish Year Pages File Format Full-Text
48566 46513 2007 6 PDF Available
Title
Catalytic removal of NOx and soot from diesel exhaust: Oxidation behaviour of carbon materials used as model soot
Abstract

For NOx/soot laboratory experiments, different carbon materials have been used as model soot. In this work, the behaviour of two carbon materials (a charcoal and a synthetic soot from Degussa) is compared with that of a real diesel soot. The performance of the three carbon materials in synthetic air and in an O2 + NO gas mixture was compared, both in the presence and in the absence of the KCu2/Al2O3 catalyst. The properties of the carbon materials, including microstructure, elemental analysis, ash content and ash composition determine its reactivity, which is higher in NOx atmosphere than in synthetic air. The use of the KCu2/Al2O3 catalyst increases the NOx reduction, the soot consumption rate and the selectivity towards N2 and CO2. Charcoal A3 and Printex-U can be accepted as model substances representing upper and lower limits of diesel soot reactivity.

Keywords
Soot; NOx; TEM; DRIFTS; K; Cu
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Catalytic removal of NOx and soot from diesel exhaust: Oxidation behaviour of carbon materials used as model soot
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 75, Issues 1–2, 29 August 2007, Pages 11–16
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us