Pelletizing properties of torrefied wheat straw

被引：52
|
作者：
Stelte, Wolfgang [1 ]
Nielsen, Niels Peter K. [1 ]
Hansen, Hans Ove [1 ]
Dahl, Jonas [1 ]
Shang, Lei [2 ]
Sanadi, Anand R. [3 ]
机构：
[1] Danish Technol Inst, Energy & Climate Div, DK-2630 Taastrup, Denmark
[2] Tech Univ Denmark, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark
[3] Univ Copenhagen, Fac Life Sci, DK-1958 Frederiksberg, Denmark
来源：
BIOMASS & BIOENERGY | 2013年 / 49卷
关键词：
Biomass; Torrefaction; Wheat straw; Pelletization; Pellet; MOISTURE-CONTENT; BIOMASS TORREFACTION; NORWAY SPRUCE; PILOT-SCALE; PART; WOOD; COAL; KINETICS; PRETREATMENT; TEMPERATURE;
D O I：
10.1016/j.biombioe.2012.12.025
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Combined torrefaction and pelletization are used to increase the fuel value of biomass by increasing its energy density and improving its handling and combustion properties. However, pelletization of torrefied biomass can be challenging and in this study the torrefaction and pelletizing properties of wheat straw have been analyzed. Laboratory equipment has been used to investigate the pelletizing properties of wheat straw torrefied at temperatures between 150 and 300 degrees C. IR spectroscopy and chemical analyses have shown that high torrefaction temperatures change the chemical properties of the wheat straw significantly, and the pelletizing analyses have shown that these changes correlate to changes in the pelletizing properties. Torrefaction increase the friction in the press channel and pellet strength and density decrease with an increase in torrefaction temperature. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：214 / 221
页数：8
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