Longitudinal dispersion coefficient of liquid in three-phase fluidized bed for gas-liquid-solid systems.

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概要

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• The longitudinal dispersion coefficient of liquid, E, , was measured in three-phase fluidized beds 12 and 19 cm in diameter. The data of Ef, were correlated by expanding the equation for liquid dispersion in the bubble column, and the following equations were obtained. Ug <9cm•s-1: UgDT/El = (1 + vl/Ul)0.40Bo0.225Pe(BC) Ug > 25 cm•s-1: UgDT/El = Pe(BC) In the range of Ug = 9-25 cm•s-1, El was approximated by connecting the above equations. The notations are: Pe(BC)=(ηl/ηw)0.07[13(Ug/√gDT)/{1+6.5(Ug/√gDT)0.8}]Bo=gd2ppl/σ, DT = diameter of bed, dp = diameter of solid particles, g = acceleration due to gravity, Ug = superficial gas velocity, Ul = superficial liquid velocity, vt = terminal velocity of solid particle, ηl = viscosity of liquid, ηw = viscosity of water, Pl = liquid density and σ = surface tension.

• 公益社団法人 化学工学会の論文

著者

• Kago Tokihiro

  Department Of Chemical Science And Technology Kyushu University

• Morooka Shigeharu

  Department Of Applied Chemistry Kyushu University

• Kato Yasuo

  Department Of Biotechnology Faculty Of Engineering Toyama Prefectural University

• KOYAMA MAKOTO

  Department of Applied Chemistry, Kyushu University

• YANG SHOU-ZHI

  Department of Applied Chemistry, Kyushu University

• KATO YASUO

  Department of Applied Chemistry, Kyushu University

• KATO YASUO

  Department of Applied Chemistry, Faculty of Engineering, Kyushu University

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