Improvement of NOx reduction rate of urea-SCR system by NH3 adsorption quantity control

Yutaka Murata*, Sadahito Tokui, Soichiro Watanabe, Yasuhiro Daisho, Hisakazu Suzuki, Hajime Ishii

*この研究の対応する著者

研究成果: Conference contribution

9 被引用数 (Scopus)

抄録

A urea SCR system was combined with a DPF system to reduce NOx and PM in a four liters turbocharged with intercooler diesel engine. Significant reduction in NOx was observed at low exhaust gas temperatures by increasing NH3 adsorption quantity in the SCR catalyst. Control logic of the NH3 adsorption quantity for transient operation was developed based on the NH3 adsorption characteristics on the SCR catalyst. It has been shown that NOx can be reduced by 75% at the average SCR inlet gas temperature of 158 deg.C by adopting the NH3 adsorption quantity control in the JE05 Mode.

本文言語English
ホスト出版物のタイトルSAE Technical Papers
DOI
出版ステータスPublished - 2008
イベントPowertrains, Fuels and Lubricants Meeting - Rosemont, IL
継続期間: 2008 10月 62008 10月 9

Other

OtherPowertrains, Fuels and Lubricants Meeting
CityRosemont, IL
Period08/10/608/10/9

ASJC Scopus subject areas

  • 自動車工学
  • 安全性、リスク、信頼性、品質管理
  • 汚染
  • 産業および生産工学

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