Liquid phase velocity in A 5.5M diameter bubble column.
1980; Society of Chemical Engineers, Japan; Volume: 13; Issue: 1 Linguagem: Inglês
10.1252/jcej.13.16
ISSN1881-1299
AutoresEiichi Kojima, Hajime Unno, Yukinari Sato, Tadashi Chida, Hiroshi Imai, Kazuo Endo, Ichiro Inoue, Jiro Kobayashi, Hisatsugu Kaji, Hajime Nakanishi, Kazuo Yamamoto,
Tópico(s)Minerals Flotation and Separation Techniques
ResumoLiquid Telocity distribution was measured in a bubble column 5.5 m in diameter and approximately 7 m in liquid height. Liquid flow was upward in the column center and downward near the wall. The upward velocities were from 52 to 115 cm/sec in the superficial gas velocity range from 2.4 to 8.5 cm/sec. The liquid velocity distribution is analyzed by a circulating flow model. Values of the turbulent viscosity-the parameter of the model-are in the range from 3000 to 4000 g/cm • sec. These values agree well with those estimated by an empirical formula for turbulent viscosity proposed by Miyauchi and Shyu for smaller-diameter bubble columns.
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