The influence of storage and drying methods for Scots pine raw material on mechanical pellet properties and production parameters

被引:55
作者
Filbakk, Tore [1 ]
Skjevrak, Geir [2 ]
Hoibo, Olav [1 ]
Dibdiakova, Janka [3 ]
Jirjis, Raida [4 ]
机构
[1] Norwegian Univ Life Sci, Dept Ecol & Nat Resource Management, NO-1432 As, Norway
[2] Norwegian Univ Sci & Technol, Dept Energy & Proc Engn, NO-7491 Trondheim, Norway
[3] Norwegian Forest & Landscape Inst, NO-1431 As, Norway
[4] Swedish Univ Agr Sci, Dept Energy & Technol, SE-75007 Uppsala, Sweden
关键词
Wood pellets; Durability; Drying temperature; Storage; Extractives; Moisture content; MOISTURE-CONTENT; PARTICLE-SIZE; WOOD PELLETS; FUEL PELLETS; QUALITY; TEMPERATURE; EXTRACTIVES; COMBUSTION;
D O I
10.1016/j.fuproc.2010.12.001
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Converting solid biomass into pellets through densification greatly improves logistical handling and combustion processes. Raw material properties can affect pellet quality. This study investigated how storage and drying methods for wood (Nuts sylvestris L) used as a raw material for pellet production influenced pellet durability, bulk density and energy consumption. The pelletization experiments were performed using a Sprout Matador M30 press (nominal production capacity 3.5 tonnes/h). Results showed that pelletization of 11 months stored wood compared to fresh material and high drying temperature (450 degrees C) compared to 75 degrees C resulted in higher energy consumption, probably due to increased friction in the matrix caused by the loss of extractives. However, the pellets produced were of higher density than those made from fresh material dried at a low temperature. The latter had the highest durability. Increased energy consumption showed no correlation with pellet durability. (c) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:871 / 878
页数:8
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