Stationary NOx Storage and Reduction Experiments on a Heavy-Duty Diesel Engine Rig Using a Bypass System Lund University, Dept. of Chemical Engineering II

Format:

Book

Conference/Event

Author/Creator:

Papadakis, Klaus, author.

Conference Name:

2003 JSAE/SAE International Spring Fuels and Lubricants Meeting (2003-05-19 : Yokohama, Japan)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2003

Summary:

This work concerns exhaust gas cleaning for heavy-duty diesel engines by means of NOx storage and reduction technology. A full-scale engine rig has been constructed and stationary NOx reduction tests performed.In the NOx storage and reduction approach, NOx is stored on a BaO surface as Ba(NO3)2 under long lean conditions and desorbed and reduced under short rich conditions. The rich conditions are created by injection of diesel fuel into the exhaust stream. The stationary NOx reduction tests have been performed at nine load points on an engine rig. They have shown that a stationary NOx reduction of between 25-53% is achievable at most load points depending on the temperature.The high oxygen content in the exhaust gas leads to the oxidation of the injected hydrocarbons and thus to a high fuel penalty. To lower the fuel consumption, the mass flow through the catalyst has been reduced under the regeneration periods. This was done using a bypass system with a pneumatic valve control. The extent of the reduced catalyst flow has been examined

Notes:

Vendor supplied data

Publisher Number:

2003-01-1884

Access Restriction:

Restricted for use by site license