Conversion Of Nitrogen Compounds Into
Nitrogen Oxides During Combustion In A
Fluidised Bed Reactor
Author(s)
B. Kowarska & W. Żukowski
Abstract
Combustion processes of alternative fuels with high nitrogen content can cause
nitrogen oxides emission which is unacceptable from an environmental and legal
point of view. Reactions of nitrogen compounds, e.g. ammonia or heterocyclic
compounds, are complex and there is a lack of specialized complete knowledge
about them. This paper reports processes of propane combustion in a fluidized
bed reactor without and with ammonia or pyridine addition into the reaction
zone, especially nitrogen compound conversion into NxOy. Ammonia is
converted into NxOy up to 78%, and pyridine up to 93%. The main product of
their reactions is NO (average 97%). Residual C5H5N or NH3 are converted to
N2. Nitrogen compounds’ influence on processes involving CO and VOC. The
effect of pyridine addition to the reaction zone on the kinetics of combustion
process is practically negligible. The effect of ammonia addition is noticeable
but limited.
Keywords
nitrogen oxides, fluidized bed combustion, alternative fuelscombustion, biomass combustion.
Related Book
Other papers in this volume
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