Fluidization of Biomass Particles in a Gas−Solid Fluidized Bed
Fluidization of Biomass Particles in a Gas−Solid Fluidized Bed
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DOI：
10.1021/ef800495u
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发表时间：
2008-10
期刊：
影响因子：
5.3
通讯作者：
Wenqi Zhong;Baosheng Jin;Yong Zhang;Xiaofang Wang;R. Xiao
中科院分区：
文献类型：
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作者：
Wenqi Zhong;Baosheng Jin;Yong Zhang;Xiaofang Wang;R. Xiao
对生物质颗粒的流态化以及生物质颗粒与流态化介质的二元混合物进行了研究。采用的生物质颗粒为木屑、绿豆、谷子、玉米秸秆和棉花秸秆，流化介质为硅砂、大陆冲积玄武岩（CFB）煤渣和氧化铝。实验在矩形生物质流化床中进行（密度区截面为0.4 × 0.4 m，干舷区截面为0.5 × 0.5 m，高度为4.4 m）。对近似球形生物质颗粒（木屑、绿豆、小米）和细长生物质颗粒（玉米秸秆、棉花秸秆）在不同横截面直径和长径比下的最小流化速度（UMF）进行了测试。此外，还得到了生物质颗粒在不同颗粒密度和直径的流化介质中二元混合物的UMF。结果表明，长薄生物量的UMF随横截面积的增大而增大。
Studies on the fluidization of biomass particles and binary mixtures of biomass particles with fluidization mediums were carried out. The biomass particles used were wood chip, mung beans, millet, corn stalk, and cotton stalk, and the fluidization mediums employed were silica sand, continental flood basalt (CFB) cinder, and aluminum oxide. Experiments were performed in a rectangular biomass fluidized bed (cross-sections of 0.4 × 0.4 m in a dense region and 0.5 × 0.5 m in a freeboard region, with a height of 4.4 m). The minimum fluidization velocity (UMF) of approximate sphere biomass particles (wood chip, mung beans, and millet) and long thin biomass particles (corn stalk and cotton stalk) in different transection diameters and ratios of length/diameter were tested. Furthermore, the UMF of binary mixtures of biomass particles with fluidization mediums of different particle densities and diameters was obtained. The results showed that the UMF of long thin biomass increases with an increasing transection di...