期刊
FUEL PROCESSING TECHNOLOGY
卷 92, 期 3, 页码 699-706出版社
ELSEVIER
DOI: 10.1016/j.fuproc.2010.11.031
关键词
Pellet mill; Barley straw; Blended pellets; Durability; Moisture content
资金
- Regional Spanish Government of Castilla-La Mancha
Agripellets from barley straw wastes have been produced in an annular die pellet mill. The semi-industrial scale of the pilot plant allowed for measurement of the die temperature, and an accurate control of the straw moisture at the die inlet. The pellet mechanical durability, density, length and moisture were evaluated for pure straw and blended pellets, together with the heating value and the ash content. The composition of the raw material barely changed with the compaction process. Optimum moisture contents for dense barley straw pellets production proved to be in the range of 19-23%. A durability value of 95.5% was reached under these conditions, increasing to 97-98% when small quantities of pine sawdust were added (2, 7, and 12 wt.% of pine in straw). Agglomeration of the ground particles was improved by water and pine addition, while a coarser grinding did not show any negative effect on barley straw compaction. (C) 2010 Elsevier B.V. All rights reserved.
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