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NOx Reduction in the Exhaust of Mobile Heavy-Duty Diesel Engines by Urea-SCR.

Authors :
Koebel, M.
Elsener, M.
Kröcher, O.
Schär, Ch.
Röthlisberger, R.
Jaussi, F.
Mangold, M.
Source :
Topics in Catalysis; Jul2004, Vol. 30/31 Issue 1-4, p43-48, 6p
Publication Year :
2004

Abstract

A DeNO<subscript>x</subscript> demonstration system for a diesel engine used in construction machineries and mobile cranes was setup. In preliminary experiments various extruded and coated SCR catalysts were evaluated with and without oxidizing pre-catalyst. The data from stationary tests with two selected catalysts were used to establish various model-based control algorithms for the optimum dosage of urea in the ESC and ETC. A NO<subscript>x</subscript> conversion of >93% at <10 ppm average ammonia slip could be achieved at a converter-to-swept volume ratio of <2.0. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10225528
Volume :
30/31
Issue :
1-4
Database :
Complementary Index
Journal :
Topics in Catalysis
Publication Type :
Academic Journal
Accession number :
16823123
Full Text :
https://doi.org/10.1023/B:TOCA.0000029726.38961.2b