Title:
Present and Future of Mixed Pellets Based on Agricultural Crops Residues (Herbaceous and Woody) for their Use in the Residential Sector (Mhwpellet Project)
Author(s):
Canalís-Martínez, P., Royo, J., Quintana, D., Rezeau, A.
Document(s):
Paper
Poster
Abstract:
Growing energy demands regarding the thermal use of biomass in Spain indicate that new biomass sources such as agricultural crops residues should be considered in the solid biofuel energy mix. Nevertheless, it is widely known that the use of these sources requires new challenging developments regarding their energy conversion to guarantee their sustainable use. Main constituents found in agricultural crops residues, specially their inorganic matter (ash), are linked to agglomeration, deposition, corrosion and erosion phenomena, which minimise both thermal efficiency and the conversion unit working life. In addition, particles emissions generated during combustion of these solid biofuels are responsible of important health diseases. In order to reduce impacts related to the above mentioned ash matter effects, actions concerning the fuel quality and conversion technology should be the target. Concerning the former, the ISO 17225-6 standard establishes quality guidelines that non woody pellets should fulfil. Taking into account these recommendations, an optimization of mixtures containing agricultural crop residues is suggested. Regarding conversion technology, the state of the art of existing boilers is focused on fixed grate units specialised on woody pellets class A1 (according to ISO 17225-2). This fact indicates that research efforts should be focused on the achievement of fixed bed combustion boiler properly designed for these new fuels. Considering all the aforementioned aspects, the MHWPellet project (ENE2015-68809-R (MINECO/FEDER-UE) arises. In this paper, in addition to detailing the objectives of the project, exposing the methodology and describing the available facilities, the first results obtained will be presented.
Keywords:
agricultural residues, fixed bed, pellet, thermochemical conversion, reactor, ashes
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:
2BV.4.6
Pages:
622 - 629
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-2BV.4.6
Price:
FREE
