Temperature effect on the particle entrainment rate in a gas fluidized bed

被引：12

作者：

Choi, JH ^{[1
]}

Ryu, HJ

Shun, DW

Son, JE

Kim, SD

机构：

[1] KonKuk Univ, Dept Chem Engn, Seoul 143701, South Korea

[2] Korea Inst Energy Res, Taejon 305343, South Korea

[3] KAIST, Dept Chem Engn, Taejon 305701, South Korea

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1998年 / 37卷 / 03期

关键词：

D O I：

10.1021/ie970456y

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The qualitative effect of temperature on the particle entrainment rate has been measured in a gas fluidized bed (0.1 m i.d., 1.97 m height). The gas velocity (0.65-2.3 m/s), the bed temperature (12-600 degrees C), the particle density (2509-6158 kg/m(3)), and the particle size (0.091-0.363 mm) were considered as experimental variables. The particle entrainment rate increased after an initial decrease with increasing bed temperature. The effect of temperature on particle entrainment rate decreased as either the gas velocity or the particle density increased. Within the experimental range, it could be confirmed that the change of the particle entrainment rate with temperature was very similar to that of the particle size for which the terminal velocity was equal to the gas velocity.

引用

页码：1130 / 1135

页数：6

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