Title:
Combustion Behaviour and Slagging Tendencies of Kaolin Additivated Agricultural Pellets and of Wood-straw Pellet Blends in a Small Scale Boiler
Author(s):
Mack, R., Kuptz, D., Schön, C., Hartmann, H.
Document(s):
Paper
Slide presentation
Abstract:
The ERA-NET Project “BioFlex!” aims at the utilisation of agricultural fuels for failure free and low emission combustion in domestic biomass boilers. Within the project, the effect of kaolin additivation of four agricultural biomass fuels as well as of fuel blends of wheat straw with woody biomass was assessed regarding combustion behaviour in small scale boilers. By additivation of kaolin as well as by fuel blending, total particle emissions and CO emissions were reduced by 53 to 77 % and 69 to 95 %, respectively. In addition, slag formation (determined as amount of agglomerates > 3.15 mm) of the agricultural fuels was also reduced. Thus, additivation with kaolin or blending of agricultural fuels might be an interesting option for the utilisation of “difficult” biomass fuels. However, regarding the pelletisation process itself, a distinct increase in wearing off of the dies and the rollers of the pellet mill was observed. This also has to be considered during production.
Keywords:
agricultural fuels, combustion, emissions, pellet, slagging, additives, blending
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Biomass and bioliquids combustion for small and medium scale applications
Event:
26th European Biomass Conference and Exhibition
Session:
2AO.5.1
Pages:
408 - 417
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-2AO.5.1
Price:
FREE
