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Characterization of Criteria and Organic Matter Emissions from a Nonroad Diesel Engine Equipped with a Selective Catalytic Reduction System
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 13, 2014 by SAE International in United States
Annotation ability available
More stringent emission requirements for nonroad diesel engines both in the U.S. and Europe have spurred the development of engines and exhaust aftertreatment technologies. In this study, one such system consisting of a diesel oxidation catalyst, zeolite-based selective catalytic reduction catalyst, and an ammonia oxidation catalyst was evaluated using both nonroad transient and steady-state cycles in order to understand the emission characteristics of this configuration. Criteria pollutants were analyzed and particular attention was given to organic compound and NO2 emissions since both of these could be significantly affected by the absence of a diesel particulate filter that typically helps reduce semi-volatile and particle-phase organics and consumes NO2 via passive soot oxidation. Results are then presented on a detailed speciation of organic emissions including alkanes, cycloalkanes, aromatics, polycyclic aromatic hydrocarbons and their derivatives, and hopanes and steranes. It is shown that each of these groups of species was reduced significantly in comparison to engine out levels.
CitationLiu, Z., McGuffin, D., Cremeens, C., Ottinger, N. et al., "Characterization of Criteria and Organic Matter Emissions from a Nonroad Diesel Engine Equipped with a Selective Catalytic Reduction System," SAE Technical Paper 2014-01-2911, 2014, https://doi.org/10.4271/2014-01-2911.
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