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    Method for predicting regeneration of DeNOx catalyst and exhaust system using the same
    9.
    发明公开
    Method for predicting regeneration of DeNOx catalyst and exhaust system using the same 有权
    Verfahren zur Vorhersage der De-NOx-Katalysator-Regenerierung und Abgassystem damit

    公开(公告)号：EP2460994A2

    公开(公告)日：2012-06-06

    申请号：EP11171151.1

    申请日：2011-06-23

    申请人： HYUNDAI MOTOR COMPANY ,  FEV Motorentechnik GmbH ,  KIA Motors Corporation

    发明人： Severin, Christopher ,  Wittka, Thomas ,  Lee, Jin Ha ,  Park, Jin Woo

    IPC分类号： F01N3/08 ,  F01N3/20 ,  F01N11/00

    CPC分类号： F01N3/0814 ,  F01N3/0253 ,  F01N3/0842 ,  F01N3/0871 ,  F01N11/00 ,  F01N13/009 ,  F01N2240/30 ,  F01N2250/12 ,  F01N2550/03 ,  F01N2560/025 ,  F01N2610/03 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1411 ,  F01N2900/1614 ,  F01N2900/1621 ,  Y02T10/47

    摘要： 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.

    摘要翻译： 用于预测DeNOx催化剂再生的方法可以精确地预测再生后的脱硝催化剂中剩余的NO x量和NO 2量以及控制DeNOx催化剂再生时间和还原剂注入量的排气系统。 该方法可以包括计算还原剂的总质量流量，计算硝酸盐还原反应中使用的还原剂的质量流量，用于NO 2还原反应的还原剂的质量流量，以及通过使用简单氧化的还原剂的质量流量 通过使用硝酸还原反应中使用的还原剂的质量流量和NO 2还原反应中使用的还原剂的质量流量，还原剂的总质量流量，计算释放的NO 2的质量流量和还原的NO 2的质量流量 计算从脱硝催化剂中脱去的NO2质量流量，根据释放的NO2的质量流量，还原的NO2的质量流量和质量流量，计算再生后的脱NO x催化剂剩余的NO2质量和NOx的质量 滑了NO2。