Title:
Production of Highly Densified Solid Fuel from Woody Biomass by Carbonization with Tar Recovery
Author(s):
Takahashi, N., Satomi, H., Shimada, I., Osada, M., Fukunaga, H.
Document(s):
Paper
Abstract:
We propose an efficient process to produce carbonized solid fuel through carbonization of woody biomass and a subsequent process of tar recovery with the produced char itself. The experiments of carbonization and tar recovery were performed using biomass sample of Japanese cypress. A rectangular piece of biomass was placed in quartz tube which was vertically installed in the tube furnace. The char particles for tar recovery, which were produced from another piece of biomass in advance, were packed in the glass tube above the biomass sample. The biomass was carbonized at 500 °C in the nitrogen gas flow. After the experiment, the char particles for tar recovery adsorbed tar of about 30 % of a mass of the biomass sample while the char yield was about only 20 %. The results indicated the mass yield of the char containing tar could reach 50 %. From the result of calorimetric measurement, the energy yield of the char containing tar was estimated to be over 70 % to the original biomass sample. In addition, the density of the char containing tar increased up to 1.5 g/cm3 by compression molding, leading to a volumetric energy density comparable to that of coal.
Keywords:
charcoal, co-firing, pyrolysis, tar removal
Topic:
Biomass Conversion Technologies for Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Production of thermally treated solid biofuels
Event:
24th European Biomass Conference and Exhibition
Session:
3DV.2.18
Pages:
1256 - 1258
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-3DV.2.18
Price:
FREE
