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Nitrogen oxides emission from a circulating fluidized bed combustor
Author(s) -
Feng Bo,
Liu Hao,
Yuan JianWei,
Lin ZhiJie,
Liu DeChang,
Leckner Bo
Publication year - 1996
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/(sici)1099-114x(199611)20:11<1015::aid-er214>3.0.co;2-i
Subject(s) - nox , combustor , nitrogen oxide , fluidized bed combustion , nitrous oxide , nitrogen , nitrogen oxides , chemistry , coal , combustion , waste management , organic chemistry , engineering
Experiments were carried out in a pilot‐scale circulating fluidized bed (CFB) coal combustor to investigate the mechanism of N 2 O formation, nitrogen oxides (including NO x and N 2 O) emission and the effect of temperature, excess air ratio, recirculation ratio, etc. The concentrations of nitrous oxide and nitric oxide were measured along the height of the CFB furnace. N 2 O concentration increased with height, and in the exit of the combustor N 2 O reached the highest level. NO x , however, decreased with height, showing the inverse trend compared with N 2 O. The N 2 O emission decreased sharply with the rise of temperature at the bottom of the combustor; at the same time, the NO x concentration increased.