TY - JOUR
T1 - Impact of torrefaction and low-temperature carbonization on the properties of biomass wastes from Arundo donax L. and Phoenix canariensis
AU - Correia, Ricardo
AU - Gonçalves, Margarida
AU - Nobre, Catarina
AU - Mendes, Benilde
N1 - The authors would like to acknowledge the City Council of Almada and Casal & Carreira Biomassa, Lda (Project “PROPELLET – Produção de pellets a partir de misturas de biomassa e resíduos lenhocelulósicos”, VALE ID&T, NUT CENTRO-07-0401-FEDER-037769), for providing Arundo donax L and Phoenix canariensis samples.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The impact of torrefaction and low-temperature carbonization on the properties of biomass wastes from Arundo donax L. and Phoenix canariensis was studied. Thermal treatments were performed at temperatures from 200 °C to 350 °C during 15 to 90 min and temperature was the parameter that more influenced mass and energy yields as well as biochar composition. Torrefaction reduced moisture, volatile matter, O/C and H/C ratios of the biomass, while increasing heating value, ash content and fixed carbon. For torrefaction at 250 °C or higher temperatures grindability of the biochars was significantly improved. The low volatile matter contents and high ash contents of these biochars restricts their use as solid fuels but they can be valorized otherwise. Raw biomasses and the biochars torrefied at 200 °C could remove methylene blue from an aqueous solution, in fast adsorption test with a contact time of only 3 s, with efficiencies higher than 50%.
AB - The impact of torrefaction and low-temperature carbonization on the properties of biomass wastes from Arundo donax L. and Phoenix canariensis was studied. Thermal treatments were performed at temperatures from 200 °C to 350 °C during 15 to 90 min and temperature was the parameter that more influenced mass and energy yields as well as biochar composition. Torrefaction reduced moisture, volatile matter, O/C and H/C ratios of the biomass, while increasing heating value, ash content and fixed carbon. For torrefaction at 250 °C or higher temperatures grindability of the biochars was significantly improved. The low volatile matter contents and high ash contents of these biochars restricts their use as solid fuels but they can be valorized otherwise. Raw biomasses and the biochars torrefied at 200 °C could remove methylene blue from an aqueous solution, in fast adsorption test with a contact time of only 3 s, with efficiencies higher than 50%.
KW - Arundo donax L. and Phoenix canariensis
KW - Dye adsorption
KW - Grindability
KW - Mass and energy yields
KW - Torrefaction and carbonization
UR - http://www.scopus.com/inward/record.url?scp=84992497253&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2016.10.046
DO - 10.1016/j.biortech.2016.10.046
M3 - Article
C2 - 27792931
AN - SCOPUS:84992497253
SN - 0960-8524
VL - 223
SP - 210
EP - 218
JO - Bioresource Technology
JF - Bioresource Technology
ER -