Title:
Combustion Behaviour of Straw Pellets and its Potential Optimisation by Fuel Improvement
Author(s):
Weller, N., Zeng, T., Lenz, V.
Document(s):
Paper
Abstract:
Besides the development and optimization of boiler systems the fuel and combustion properties of straw pellets should be improved for an increased utilization in small heating systems. Common problems related to the combustion of straw are high emissions of gaseous HCl and SO2, high particle emissions and ash slagging. Therefore in the presented work the combustion behavior of different straw pellets is investigated focusing on emission formation. Six different types of pellets, modified by different kinds of preprocessing and by addition of lignite and lime water were burnt in two small –scale boilers (~ 30 kW). Results from the measurements show no differences for the preprocessing methods whereas the addition of lignite and lime water led to significant reduction of 30 to 60 % of the total particle emissions. Concurrently the emissions of SO2 and HCl increased with the addition of both materials. The slagging tendency of the pellets was effected positively which led to better combustion behavior and lower COemissions.
Keywords:
additives, particle emission, straw pellet combustion
Topic:
Fuels from biomass
Subtopic:
Pellet production processes
Event:
18th European Biomass Conference and Exhibition
Session:
OC5.3
Pages:
1592 - 1597
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-OC5.3
Price:
FREE
