Behavior of torrefied versus fresh woody pellets in a fixed-grate reactor: Comparison of combustion parameters and fouling and slagging tendency

Arévalo, R. ; Zapata, S. ; Canalís, P. (Universidad de Zaragoza) ; Rezeau, A. ; Royo, J. (Universidad de Zaragoza)

Resumen: 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.

Idioma: Inglés

DOI: 10.5071/27thEUBCE2019-2AO.5.2

Año: 2019

Publicado en: European biomass conference and exhibition proceedings 27th (2019), 439-446
ISSN: 2282-5819

Factor impacto SCIMAGO: 0.155 - Engineering (miscellaneous) - Computer Science Applications - Computer Networks and Communications

Financiación: info:eu-repo/grantAgreement/EC/H2020/636865/EU/Flexible Superheated Steam Torrefaction and Grinding of Indigenous Biomass from Remote Rural Sources to Produce Stable Densified Feedstocks for Chemical and Energy Applications/SteamBio
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/ENE2015-68809-R

Tipo y forma: Congress (Published version)

Área (Departamento): Área Ingeniería Mecánica (Dpto. Ingeniería Mecánica)
Área (Departamento): Área Máquinas y Motores Térmi. (Dpto. Ingeniería Mecánica)