Title:
Particle Characterization at High Temperature in a 5 MW Moving Grate Biomass Boiler
Author(s):
Yang, J., Gebremedhin, A., Strand, M.
Document(s):
Paper
Poster
Abstract:
The particles and inorganic gaseous compounds from a 5 MW moving grate biomass boiler were characterized at two sampling positions at 1100 °C and 800 °C respectivly. Samples were extracted with high temperature sampling method with primary dilution ratio of 20. For both sampling positions a biomodal mass size distributions were observed, with ultrafine mode at around 70-100 nm and fine mode at 10-30 nm. The increasing concentration of ultrafine particle over time indicates that the alkali deposits in the inner wall of dilution probe re-evaporates and condenses on the ultrafine particles. The elemental analysis and ion ratio of (K+Na)/(Cl+2S) and 4S/O indicates that at 1100°C the main species composted of particulate matter are not only alkali chlorides and alkali sulfates.
Keywords:
biomass, characterization, aerosol, high temperature extraction
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Solid biofuel combustion for small and medium scale applications
Event:
21st European Biomass Conference and Exhibition
Session:
2DV.3.23
Pages:
1132 - 1135
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2DV.3.23
Price:
FREE
