NDLI: Nitrous oxide formation and emission in selective non-catalytic reduction process

Content Provider	Springer Nature Link
Author	Yang, Weijuan Zhou, Junhu Zhou, Zhijun Cen, Kefa
Copyright Year	2007
Abstract	Pulverized coal-fired boilers are not nitrous oxide sources because of high temperature combustion. But selective non-catalytic reduction may produce N$_{2}$O by NO reduction reactions. Chemical kinetics calculation and experimental research were used to find out the mechanism between N$_{2}$O and N-agent species, N-agent/NO nitrogen stoichiometric ratio (NSR), reaction temperature, reaction time, etc. The results show that N$_{2}$O emission decreases with increasing reaction temperature and NSR decreases when reaction time is enough. N$_{2}$O concentration first increases then decreases as SNCR reactions keep on occuring. Ammonia SNCR tests indicated that N$_{2}$O emission was 0–7 μmol/mol. About 8.7% of NO was transformed to N$_{2}$O, and N$_{2}$O emission was 27.8 μmol/mol at urea-SNCR test. Urea-SNCR is likely to bring N$_{2}$O emission problem.
Starting Page	228
Ending Page	232
Page Count	5
File Format	PDF
ISSN	16737393
Journal	Frontiers of Energy and Power Engineering in China
Volume Number	1
Issue Number	2
e-ISSN	16737504
Language	English
Publisher	Higher Education Press
Publisher Date	2007-01-01
Publisher Institution	Chinese Universities
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	selective non-catalytic reduction nitrous oxide nitrogen oxides ammonia urea Power Engineering
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology

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