Analysis of White Solids Derived from Urea Solution in a Urea SCR System
尿素SCRシステムにおける尿素水由来の白色固体の分析
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20266024
- Paper/Info type
- Proceedings (Autumn)
No.97-26
- 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) 佐藤 梢, 2) 小島 隼人, 3) 酒井 順司, 4) 草鹿 仁 |
|---|---|
| Author(E) | 1) Kozue Sato, 2) Hayato Kojima, 3) Junji Sakai, 4) Jin Kusaka |
| Affiliation(J) | 1) 早稲田大学, 2) 早稲田大学, 3) いすゞ自動車, 4) 早稲田大学 |
| Affiliation(E) | 1) Waseda University, 2) Waseda University, 3) Isuzu Motors, 4) Waseda University |
| Abstract(J) | 尿素SCRシステムでは低温域で尿素とその重合生成物由来とみられる堆積物が排気管内に生じる．本研究では低温の異なる排気温度で堆積物を採取し，熱化学分析によりこれらの組成を推定した．さらに，堆積物を昇温した際の消失過程を3段階の一次反応と仮定し，各反応の衝突頻度因子と活性化エネルギーを実験的に算出した． Translation |
| Abstract(E) | In urea SCR systems, deposits believed to originate from urea and its polymerization products form inside the exhaust pipe at low temperatures. In this study, deposits were collected at various low exhaust temperatures, and their compositions were estimated through thermochemical analysis. Furthermore, assuming that the decomposition process of the deposits upon heating consists of three-step first-order reactions, the collision frequency factors and activation energies for each reaction were experimentally determined. |
