A study on reductants pulse supply to a NH3-SCR catalyst toward NOx conversion improvement and reductants reduction (Second Report)
NH3-SCR触媒における還元剤パルス供給によるNOx浄化率向上及び還元剤供給量削減に関する研究（第2報）
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- Available on the other site
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- Publication code
- 20224207
- Paper/Info type
- JSAE Transaction
Vol.53 No.3
- Pages
- 478-483(Total 6 p)
- Date of publication
- May 2022
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 研究論文 Translation |
|---|---|
| Category(E) | ResearchPaper |
| Author(J) | 1) 関 圭一朗, 2) 上山 陸人, 3) 草鹿 仁 |
| Author(E) | 1) Keiichiro Seki, 2) Rikuto Ueyama, 3) Jin Kusaka |
| Affiliation(J) | 1) 早稲田大学, 2) 早稲田大学, 3) 早稲田大学 |
| Abstract(J) | 尿素SCR触媒システムにおけるNOx浄化率向上及び還元剤供給量削減を目的に，NOx浄化率予測モデルを用いて還元剤濃度の能動的制御の有用性について調査した．NH3/NOx比を制御することで，アンモニアスリップ量の削減だけでなく，硝酸アンモニウムの生成蓄積を抑えNOx浄化率向上を見込める傾向が得られた． Translation |
| Abstract(E) | In this study, the active control of reductant pulse supply was investigated using the SCR reaction model to improve the NOx purification ratio and reduce the amount of reductant supply in a urea-SCR catalyst system. The reduction of NH3 slip was obtained when the active control of amplitude and frequency of NH3 pulse supply was carried out at low temperature. Moreover, low NH3/NOx ratio had roles in not only reducing extra NH3 supply amount but also keeping high NOx conversion ratio by the improvement of NOx conversion by suppressing the formation of ammonium nitrate. |
