Effect of late diesel injection on close-coupled SCR + ASC during DPF regeneration period

• Published in: Fuel (Guildford) Vol. 381; p. 133406
• Main Authors: Ovaska, Teemu, Spoof-Tuomi, Kirsi, Niemi, Seppo, Valkjärvi, Pauli, Maunula, Teuvo, Mikulski, Maciej, Lehtoranta, Kati, Alanen, Jenni, Happonen, Matti
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2025
• Subjects: Diesel engine; Late diesel injection; Nitrogen oxides; Regeneration; Selective catalytic reduction; Regeneration; Diesel engine; Nitrogen oxides; Late diesel injection; Selective catalytic reduction

•Late diesel injection was studied as a strategy to raise exhaust gas temperature.•Late injection period was applied at SCR temperatures from 250 to 400 °C.•Late injection at below 320 °C led to severe loss of performance of SCR + ASC.•Most of the temperature increase occurred in SCR + ASC instead o...