Compact SCR for Passenger Cars Faurecia Emissions Control Technologies

Format:

Conference/Event

Author/Creator:

Alano, Alano, author.

Contributor:

Brunel, Jean-Paul

Chapel, Julien

Ferhan, Mehdi

Ferrand, Nicolas

Jean, Emmanuel

Pajot, Karine

Perrot, Yohann

Conference Name:

SAE 2011 World Congress & Exhibition (2011-04-12 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

Stringent emissions standards (Euro 6 and Tier2Bin5) lead to the use of nitrogen oxides (NOx) aftertreatment. One of the most widespread technical solutions able to meet these legislations is Urea Selective Catalytic Reduction (Urea SCR). A urea aqueous solution is introduced into the exhaust system in order to reduce NOx over SCR catalyst. Before reaching the catalyst, the aqueous solution has to be transformed into ammonia. Current serial applications need long distances ( 400 mm) from injection point to SCR catalyst and a mixer apparatus to ensure sufficient mixing between exhaust gas and ammonia. Because of this distance, SCR catalyst is located far from the engine. The light-off of the catalyst is penalized and therefore the efficiency of the SCR system is low. The purpose of this paper is to show a compact mixing device able to ensure mixing in a short distance (~ 75 mm). Thanks to this compact mixer so-called BlueBox, systems like SCR catalyst or two-way SCR/diesel particulate filter (DPF) catalyst in a close coupled position can be considered

Notes:

Vendor supplied data

Publisher Number:

2011-01-1318

Access Restriction:

Restricted for use by site license