Combined removal of particulate matter and nitrogen oxides from the exhaust gas of small-scale biomass combustion

The utilization of various solid biofuels in combustion plants often requires the application of secondary emission reduction measures in order to meet legal requirements. Since common multi-stage exhaust cleaning methods are too expensive for the application in decentral biomass combustion, new app...

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Bibliographic Details
Published in:Biomass conversion and biorefinery 2019-03, Vol.9 (1), p.201-212
Main Authors: König, M., Eisinger, K., Hartmann, I., Müller, M.
Format: Article
Language:English
Subjects:
Ammonia
Biomass
Biomass burning
Biotechnology
Combustion
Emissions control
Energy
Exhaust gases
Furnaces
Nitrogen oxides
Optimization
Original Article
Particulate emissions
Renewable and Green Energy
Secondary emission
Wood chips
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Summary:The utilization of various solid biofuels in combustion plants often requires the application of secondary emission reduction measures in order to meet legal requirements. Since common multi-stage exhaust cleaning methods are too expensive for the application in decentral biomass combustion, new approaches have to be investigated which can be applied economically in small- and medium-sized plants. The combined removal of particulate and gaseous emissions in one unit can save investment and operation costs. In this context, a method for simultaneous reduction of particulate matter (PM) and nitrogen oxides (NO X ) was developed and tested. The investigations focused on the alignment of the system components and the determination of optimal operating parameters for use in decentralized biomass furnaces. Experiments with wood chips and different non-woody biomass pellets at a 120-kW pilot plant showed significant reduction of PM and NO X . There is still a need for optimization with regard to the NH 3 slip and the degree of particle separation.
ISSN:2190-6815
2190-6823
DOI:10.1007/s13399-018-0303-0