Title:
O2-Enriched Air Gasification of Eucalyptus Residues to Improve Producer Gas Quality
Author(s):
Gomes, H.G.M.F., Tarelho, L.A.C., Matos, M.A.A., Branco, P.C.
Document(s):
Paper
Poster
Abstract:
In this work, gasification of Eucalyptus residues was performed in a 3 kWth bench-scale bubbling fluidized bed reactor. The main purpose was to study the effect of O2-enriched air in biomass gasification, namely, on the producer gas quality: gas composition, lower heating value of the producer gas (LHVG), efficiency parameters, and H2:CO and CO:CO2 molar ratios. Compared to the reference condition (air gasification), the use of O2-enriched air led to an increase in the concentration of most gaseous compounds, as a result of the decrease in the N2 concentration in the producer gas. For the highest O2-enriched air concentration tested, the LHVG was, approximately, 57 % higher than LHVG for the reference condition. However, Ygas underwent a decrease of, approximately, 35 %, and no evident impact was found in the CGE and CCE for the same experiments. The H2:CO molar ratio suffer a slight decrease with the O2 concentration increase, whilst the CO:CO2 molar ratio underwent an slight increase, meaning that the reduction reactions can be promoted in detriment of oxidation reactions with the increment of O2 concentration. The O2-enriched air biomass gasification caused some improvement in the producer gas quality, e.g., in terms of heating value and gas composition.
Keywords:
gasification, product gas, eucalyptus residues, lower calorific value
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Gasification for power, CHP and polygeneration
Event:
30th European Biomass Conference and Exhibition
Session:
4BV.5.12
Pages:
721 - 727
ISBN:
978-88-89407-22-6
Paper DOI:
10.5071/30thEUBCE2022-4BV.5.12
Price:
FREE
