Title:
Behavior of Torrefied versus Fresh Woody Pellets in a Fixed-Grate Reactor: Comparison of Combustion Parameters and Fouling and Slagging Tendency
Author(s):
Arévalo, R., Zapata, S., Canalis, P., Rezeau, A., Royo, J.
Document(s):
Paper
Abstract:
This study analyzes the conversion characteristics of two agricultural residues (vineyard and olive pruning) in form of pellets and draws a comparison with the same fuels submitted to a thermal treatment, i.e., torrefaction. The combustion characteristics are measured through the burning rate and temperatures reached. Afterwards, ash and its sintered fractions are studied to determine problems related to fouling and sintering that may cause clogging of mechanical parts in conversion equipment. The torrefied fuels have shown some improvement regarding ash behavior, especially, a reduction of sintered fractions. However, the behavior of both biomasses can be very diverse in some regards. Additionally, the results of predictive indices have proven inconclusive regarding the prediction of sintering and fouling problems. This highlights the complexity of agricultural biomass respect to forest biomass (e.g., pine) and the necessity to evaluate fuels from agricultural residues.
Keywords:
agricultural residues, combustion, fouling, pellets, slagging, torrefaction, ashes
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Biomass and bioliquids combustion for small and medium scale applications
Event:
27th European Biomass Conference and Exhibition
Session:
2AO.5.2
Pages:
439 - 446
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-2AO.5.2
Price:
FREE
