Verfahren zur Vorhersage der De-NOx-Katalysator-Regenerierung und Abgassystem damit

Details

Veröffentlichungs-Nr.

EP2460994

Aktenzeichen

EP11171151

Anmeldetag

23. Juni 2011

Veröffentlichung

26. Juli 2017

Erteilung

26. Juli 2017

Rechtsraum

EP

IPC

F01N3/08F01N3/20F01N11/00F01N3/025F01N13/00

Abstract

A method for predicting regeneration of a DeNOx catalyst can precisely predict NOx amount and NO2 amount remaining in the DeNOx catalyst after regeneration and to exhaust system which controls regeneration timing of the DeNOx catalyst and injection amount of reducing agent. The method may include calculating total mass flow of reducing agent, calculating mass flow of the reducing agent used in nitrate reduction reaction, mass flow of the reducing agent used in NO2 reduction reaction, and mass flow of the reducing agent which is simply oxidized by using the total mass flow of the reducing agent, calculating mass flow of released NO2 and mass flow of reduced NO2 by using the mass flow of the reducing agent used in the nitrate reduction reaction and the mass flow of the reducing agent used in the NO2 reduction reaction, calculating mass flow of NO2 slipped from DeNOx catalyst, and calculating mass of NO2 and mass of NOx remaining at the DeNOx catalyst after regeneration based on the mass flow of the released NO2, the mass flow of the reduced NO2, and the mass flow of the slipped NO2.

Anmelder

Firmen

HYUNDAI MOTOR COMPANY
FEV Motorentechnik GmbH
KIA Motors Corporation

Land

🇰🇷 Südkorea

Fachgebiete