Numerical Computational Fluid Dynamics Analysis of Pd-Based Three-Way Catalysts Considering Detailed Surface Reactions Effects of Mass Transport in the Catalyst Layer
詳細な表面反応を考慮したPd系三元触媒の数値熱流体解析 触媒層物質輸送の影響
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20266258
- Paper/Info type
- Proceedings (Autumn)
No.146-26
- Pages
- 1-2(Total 2 p)
- Date of publication
- Oct 2026
- Publisher
- JSAE
- Language
- Japanese
- Event
- 2026 JSAE Annual Congress (Autumn)
Detailed Information
| Author(J) | 1) 井上 敬太, 2) 小田 颯一郎, 3) 青山 颯汰, 4) 草鹿 仁 |
|---|---|
| Author(E) | 1) Keita Inoue, 2) Souichiro Oda, 3) Sota Aoyama, 4) Jin Kusaka |
| Affiliation(J) | 1) 早稲田大学, 2) 早稲田大学, 3) 早稲田大学, 4) 早稲田大学 |
| Affiliation(E) | 1) Waseda University, 2) Waseda University, 3) Waseda University, 4) Waseda University |
| Abstract(J) | 排ガス浄化の高効率化に向け，触媒層内のガス拡散が浄化性能に及ぼす影響の定量評価が求められている．本研究では，上層に不活性層を設けたPd三元触媒の試験と，細孔物性に基づく1+1Dモデル解析を比較した．結果，本モデルは浄化挙動を再現し，高温域では拡散律速により反応が表層に集中することを明らかにした． Translation |
| Abstract(E) | To advance exhaust purification efficiency, this study quantitatively evaluates mass transport phenomena within Pd three-way catalysts. CO-O2 light-off tests were conducted using catalysts coated with an inert alumina top layer to isolate diffusion effects. A comprehensive 1+1D simulation model was developed, integrating physical parameters directly derived from mercury porosimetry and SEM observations. The proposed model successfully reproduced experimental light-off behaviors. Subsequent detailed internal analyses elucidated that under high-temperature conditions, catalytic reactions become strongly diffusion-limited, heavily concentrating near the washcoat surface. |
