Jirjis, Raida
- Department of Energy and Technology, Swedish University of Agricultural Sciences
Abstract
A study on how bark content affects the quality of pellets is reported in this paper. Pellets from pinewood containing zero, five, 10, 30 and 100 percent bark were produced, and their quality parameters were evaluated. Combustion tests were also performed on the produced pellets. Pellets made from pure bark had the best mechanical properties compared with pellets made of wood containing various concentrations of bark. The differences were not substantial and the durability for all chosen assortments was in the same quality class in the CEN standard. A positive effect off the amount of steam added was found. The bulk densities of the blend pellets were higher than those of pure wood and bark. The ash content increased with the amount of bark in the pellets. There were no problems with sintering when the bark content was low (five and 10 percent). For pure bark pellets some sintering was registered. (C) 2010 Elsevier Ltd. All rights reserved.
Keywords
Wood pellets; Bark content; Fuel quality; Durability; Ash content; Ash melting point
Published in
Biomass and Bioenergy
2011, volume: 35, number: 8, pages: 3342-3349
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
SLU Authors
UKÄ Subject classification
Forest Science
Bioenergy
Publication identifier
- DOI: https://doi.org/10.1016/j.biombioe.2010.09.011
Permanent link to this page (URI)
https://res.slu.se/id/publ/58589