Effect of ammonium formate and mixtures of urea and ammonium formate on low temperatire activity of SCR systems
| Autor: | Mårten Westerholm, Timo Harma, Christer Söderström, Timo Nissinen, Kauko Tormonen, Jari Kukkonen, Anu Solla |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Solla, A, Westerholm, M, Söderström, C, Tomonen, K, Härmä, T, Nisinen, T & Kukkonen, J 2005, Effect of ammonium formate and mixtures of urea and ammonium formate on low temperatire activity of SCR systems . in SAE 2005 World Congress & Exhibition . Society of Automotive Engineers SAE, SAE Technical Paper Series, no. 2005-01-1856, SAE 2005 World Congress & Exhibition, Detroit, Michigan, United States, 11/04/05 . https://doi.org/10.4271/2005-01-1856 |
| Popis: | The urea based SCR technology will face problems with the high freezing point (-11°C) of the reductant. In many parts of the world temperatures regularly fall much lower than this. With ammonium formate-urea solution the freezing point can be as low as - 30 °C. The reduction capacity of various ammonium formate solutions and its mixtures with urea were studied. When using ammonium formate and its mixtures as reductant in SCR experiments a significant improvement in the DeNO x activity in the low temperature operation was seen. In general in the engine experiments the ammonium formate-urea mixtures showed a reduction capacity comparable to standard urea. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|