Title:
Enhanced Gasification of Woody Biomass in Oxygen-Enriched Environment
Author(s):
Belandria, V., Kandasamy, J., Bostyn, S., Gökalp, I., Escot Bocanegra, P., Klett, C., Khacef, A.
Document(s):
Paper
Poster
Abstract:
A unique set-up consisting of two reactors to produce a high-energy syngas is employed. The first gasification reactor (50 kW) converts the pellets into syngas (20 kg.m-3), which follows into a plasma reactor (600 °C). A significant part of the impurities produced by the first stage is transformed, in the plasma reactor, into H2 and CO and thus increasing the syngas calorific value. Few studies have been conducted to examine the effect of O2 concentrations on the gasification of woody biomass above 300 °C. Plasma-assisted gasification and TGA-MS experiments are carried out to study the evolution of the produced gas (H2, CO, CO2 and light hydrocarbon species) during the degradation process. The biomass is first pyrolyzed and the carbon residue produced is submitted to partial oxidation and further isothermal decomposition in an oxidizing atmosphere with TGA at different heating rates. The O2 content in the gasifying mixture varied from 1 to 35 % vol. The MS signals in combination with the TGA data are used to elucidate the reactivity of the biomass samples in the range of 300 to 600 °C. The results revealed that reactivity is highly dependent on the process parameters. It is concluded that the O2 concentration can be optimized to improve the production of H2-rich gas mixtures from woody biomass gasification.
Keywords:
miscanthus, wood pellets, allothermal gasification, gliding arc discharges, TGA-MS
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Gasification for synthesis gas production
Event:
24th European Biomass Conference and Exhibition
Session:
2CV.3.31
Pages:
890 - 894
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-2CV.3.31
Price:
FREE
