The formation of NOx and soot in oxygen-enriched suspension flames
Poster (konferens), 2018
The present work is based on combustion modeling. Detailed reaction mechanisms, obtained from the literature, that are relevant to the gas phase nitrogen chemistry and soot formation during combustion in flames, were implemented to investigate possible interactions and their sensitivity to combustion conditions. Various cases were modelled, cases that are characterized by different reactor inlet oxygen concentrations, residence times, temperature conditions and mixing rates. The modeling results show that temperature and inlet oxygen concentration are important to the radical pool and, thus, to the rates of the key-reactions in soot and nitrogen oxide formation. An increasing soot formation in the flame region was observed when the local temperature and the inlet oxygen concentration were increased in the model. The observed NOx reduction is attributed mainly to competition for radicals on a precursor level and to heterogeneous reduction on the soot.
soot
oxygen-enriched
NOx
Combustion
Författare
Rikard Edland
Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik
Thomas Allgurén
Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik
Fredrik Normann
Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik
Klas Andersson
Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik
Bochum, Germany,
Drivkrafter
Hållbar utveckling
Styrkeområden
Energi
Ämneskategorier
Kemiska processer
Annan kemiteknik
Annan kemi
Infrastruktur
Chalmers kraftcentral