Impact of Coal Fly Ash Addition on Combustion Aerosols (PM2.5) from Full-Scale Suspension-Firing of Pulverized Wood

Anne Juul Damø, Hao Wu, Flemming Frandsen, Peter Glarborg, Bo Sander

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The formation of combustion aerosols was studied in an 800 MWth suspension-fired power plant boiler, during combustion of pulverized wood pellets with and without addition of coal fly ash as alkali capture additive. The aerosol particles were sampled and characterized by a low-pressure cascade impactor (LPI), and elemental composition and particle morphology was studied by electron microscopy methods (SEM/EDS and TEM/EDS). During pulverized wood combustion, the mass-load of submicrometer particles (PM1) was in the range 44–47 mg/Nm3, and the mass-based particle size distribution revealed a distinct submicrometer peak located around 0.2 μm. This peak consisted mainly of aggregated ultrafine (
Original languageEnglish
JournalEnergy and Fuels
Volume28
Pages (from-to)3217−3223
ISSN0887-0624
DOIs
Publication statusPublished - 2014

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