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Evaluation of Cu-Based SCR/DPF Technology for Diesel Exhaust Emission Control
ISSN: 1946-3952, e-ISSN: 1946-3960
Published April 14, 2008 by SAE International in United States
Citation: Lee, J., Paratore, M., and Brown, D., "Evaluation of Cu-Based SCR/DPF Technology for Diesel Exhaust Emission Control," SAE Int. J. Fuels Lubr. 1(1):96-101, 2009, https://doi.org/10.4271/2008-01-0072.
Recently, a new technology, termed 2-way SCR/DPF by the authors, has been developed by several catalyst suppliers for diesel exhaust emission control. Unlike a conventional emission control system consisting of an SCR catalyst followed by a catalyzed DPF, a wall-flow filter is coated with SCR catalysts for controlling both NOx and PM emissions in a single catalytic converter, thus reducing the overall system volume and cost. In this work, the potential and limitations of the Cu/Zeolite-based SCR/DPF technology for meeting future emission standards were evaluated on a pick-up truck equipped with a prototype light-duty diesel engine.