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NOx reduction and NO2 emission characteristics in rich-lean combustion of hydrogen

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Title: NOx reduction and NO2 emission characteristics in rich-lean combustion of hydrogen
Authors: Shudo, Toshio Browse this author
Omori, Kento Browse this author
Hiyama, Osamu Browse this author
Keywords: Hydrogen
Rich-Lean Combustion
Staged Combustion
Nitrogen Oxides
Zel'dovich NO
Fenimore NO
prompt NO
Issue Date: Sep-2008
Publisher: Pergamon
Journal Title: International Journal of Hydrogen Energy
Volume: 33
Issue: 17
Start Page: 4689
End Page: 4693
Publisher DOI: 10.1016/j.ijhydene.2008.05.034
Abstract: Hydrogen is a clean alternative to conventional hydrocarbon fuels, but it is very important to reduce the nitrogen oxides (NOx) emissions generated by hydrogen combustion. The rich-lean combustion or staged combustion is known to reduce NOx emissions from continuous combustion burners such as gas turbines and boilers, and NOx reduction effects have been demonstrated for hydrocarbon fuels. The authors applied rich-lean combustion to a hydrogen gas turbine and showed its NOx reduction effect in previous research. The present study focused on experimental measurements of NO and NO2 emissions from a co-axial rich-lean burner fueled with hydrogen. The results were compared with diffusion combustion and methane rich-lean combustion. Significant reductions in NO and NO2 were achieved with rich-lean combustion. The NO and NO2 reduction effects by rich-lean combustion relative to conventional diffusion combustion were higher with hydrogen than with methane.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 首藤 登志夫

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