Title:
Combustion Of Residues from Ethanol Production
Author(s):
Zimbardi, F., Prestipino, M., Cerone, N., Valerio, V., Bonaccorsi, L.
Document(s):
Paper
Poster
Abstract:
Hydrolytic Lignin rich residue (HL) produced in house activities of wheat straw biorefining and commercial Distiller's Dried Grains with Solubles (DDGS) can be considered as potential feedstock for energy production via combustion or gasification because their relatively high heating values. The residues were analyzed to determine their proximate and ultimate composition together with the heating values. The raw residues and the chars obtained from them at 900°C were investigated by TGA under oxidizing atmospheres (mixtures of N2 and O2) to determine the pyrolysis and combustion behaviors, included the activation energy of combustion at low temperature. The kinetic data obtained at this microscale are useful to design and model the thermal conversion in fixed bed gasifiers, downdraft or updraft. Significant differences were pointed out both between the thermal behavior of the raw residues and between their chars. However, the activation energy of combustion resulted 120 kJ/mol for both chars, in agreement with literature on biomass derived chars. The biochemical composition, in particular the higher content of protein in DDGS, was considered to explain the different kinetics.
Keywords:
biorefinery, combustion, lignin, thermochemical conversion
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Solid biofuels combustion for small and medium scale applications
Event:
22nd European Biomass Conference and Exhibition
Session:
2BV.2.15
Pages:
667 - 670
ISBN:
978-88-89407-52-3
Paper DOI:
10.5071/22ndEUBCE2014-2BV.2.15
Price:
FREE
