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HC-SCR Catalyst Performance in Reducing NOx Emissions from a Diesel Engine Running Transient Test Cycles
Technical Paper
2008-01-2487
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The two most common NOx reducing technologies, in an oxygen abundant exhaust stream, are urea selective catalytic reduction urea-SCR and lean NOx trap (LNT) catalysts. Each technology has advantages and disadvantages. Another selective catalytic reduction (SCR) catalyst that uses hydrocarbons (HC-SCR), specifically diesel fuel, as the reductant to reduce NOx emissions was investigated. This catalyst is a result of a high throughput discovery project and conducted in cooperation with BASF, Accelrys and funded by the Department of Energy (DOE.) Several full size 5.0L monolith catalysts were made and evaluated using a V6 turbo charged diesel engine connected to a dynamometer running light-duty transient test cycles. The NOx efficiency on the HWYFET and US06 tests were measured to be 92% and 76% respectively. The FTP was 60% on a weighted basis.
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Viola, M., "HC-SCR Catalyst Performance in Reducing NOx Emissions from a Diesel Engine Running Transient Test Cycles," SAE Technical Paper 2008-01-2487, 2008, https://doi.org/10.4271/2008-01-2487.Also In
References
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