A study on the improvement of NOx reduction efficiency for a urea SCR system (Third report) - High NOx reduction efficiency mechanism at transient low exhaust gas temperature operation

Yutaka Murata, Sadahito Tokui, Ryo Komiya, Atsushi Kaneko, Yasuhiro Daisho, Hisakazu Suzuki, Hajime Ishii

研究成果: Article

抜粋

NOx reduction mechanism and requirements for high NOx reduction efficiency in a urea SCR system at transient conditions with low exhaust gas temperature were investigated by using a four liters multi-cylinder diesel engine. NOx can be significantly reduced by adjusting mode-overall SCR inlet NO2/NOx ratio at 0.5±0.1 while adopting NH3 adsorption quantity control. It has been shown that ammonium nitrate (NH4NO3) plays an important role in enhancing the Fast SCR reaction at transient low exhaust gas temperature conditions.

元の言語English
ページ(範囲)103-110
ページ数8
ジャーナルReview of Automotive Engineering
31
発行部数2
出版物ステータスPublished - 2010

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ASJC Scopus subject areas

  • Automotive Engineering

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