Non-Thermal Plasma Enhanced Urea-SCR Treatment of Diesel Exhaust for Low-Temperature NOx-Reduction Siemens AG, Corporate Technology Department Plasma and Switching Technology

Format:

Conference/Event

Author/Creator:

Hammer, Thomas, author.

Conference Name:

Automotive and Transportation Technology Congress and Exposition (2001-10-01 : Barcelona, Spain)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2001

Summary:

Test bench measurements were performed demonstrating low temperature non-thermal plasma enhanced selective catalytic reduction of NOx in the exhaust of a 1.9 liter direct injection Diesel engine. The plasma-catalytic hybrid system consisted of an oxidation catalyst, a modular dielectric barrier discharge reactor for plasma treatment, a semiconductor switched pulse voltage source for electrical excitation, and an urea SCR system based on a monolithic V2O5-WO3/TiO2 catalyst. In a test cycle simulating urban driving conditions the average NOx-mass flow was reduced from 27 g/h down to 11.5 g/h. Maximum NOx-reduction rates of 28 g/h were obtained at an energy cost of 10 Wh/g NOx. The ammonia storage capability of the catalyst was utilized for reduction at temperatures below 140 °C

Notes:

Vendor supplied data

Publisher Number:

2001-01-3200

Access Restriction:

Restricted for use by site license