Gas dispersion characteristics of newly developed impellers in a stirred vessel

N Otomo; Waldemar Bujalski; Alvin Nienow; Koji Takahashi

doi:10.1252/jcej.36.166

Gas dispersion characteristics of newly developed impellers in a stirred vessel

N Otomo, Waldemar Bujalski, Alvin Nienow, Koji Takahashi

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8 Citations (Scopus)

Abstract

Gas dispersion characteristics of a single impeller in a fully baffled cylindrical pilot scale stirred vessel (T = 0.72 m) were studied for newly developed impellers, which are a 6-bladed hollow blade disc turbine (6HB) and a Lightnin A315 (A315), in addition to the traditional 6-bladed Rushton disc turbine (6DT), under unarerated and aerated conditions in water. The power drawn, gas hold-up and k(L)a (oxygen mass transfer rate) obtained were compared with those for the 6DT reported in literature. As a result, it was found that the gas handling capacities of the 6HB and A315 are superior to that of the 6DT.

Original language	English
Pages (from-to)	166-171
Number of pages	6
Journal	Journal of Chemical Engineering of Japan
Volume	36
Issue number	2
DOIs	https://doi.org/10.1252/jcej.36.166
Publication status	Published - 1 Jan 2003

Keywords

gas dispersion
Lightnin A315
flooding-loading transition
power consumption
hollow blade disc turbine
gas hold-up
cavity structure

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10.1252/jcej.36.166

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abstract = "Gas dispersion characteristics of a single impeller in a fully baffled cylindrical pilot scale stirred vessel (T = 0.72 m) were studied for newly developed impellers, which are a 6-bladed hollow blade disc turbine (6HB) and a Lightnin A315 (A315), in addition to the traditional 6-bladed Rushton disc turbine (6DT), under unarerated and aerated conditions in water. The power drawn, gas hold-up and k(L)a (oxygen mass transfer rate) obtained were compared with those for the 6DT reported in literature. As a result, it was found that the gas handling capacities of the 6HB and A315 are superior to that of the 6DT.",

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AU - Otomo, N

AU - Bujalski, Waldemar

AU - Nienow, Alvin

AU - Takahashi, Koji

PY - 2003/1/1

Y1 - 2003/1/1

N2 - Gas dispersion characteristics of a single impeller in a fully baffled cylindrical pilot scale stirred vessel (T = 0.72 m) were studied for newly developed impellers, which are a 6-bladed hollow blade disc turbine (6HB) and a Lightnin A315 (A315), in addition to the traditional 6-bladed Rushton disc turbine (6DT), under unarerated and aerated conditions in water. The power drawn, gas hold-up and k(L)a (oxygen mass transfer rate) obtained were compared with those for the 6DT reported in literature. As a result, it was found that the gas handling capacities of the 6HB and A315 are superior to that of the 6DT.

AB - Gas dispersion characteristics of a single impeller in a fully baffled cylindrical pilot scale stirred vessel (T = 0.72 m) were studied for newly developed impellers, which are a 6-bladed hollow blade disc turbine (6HB) and a Lightnin A315 (A315), in addition to the traditional 6-bladed Rushton disc turbine (6DT), under unarerated and aerated conditions in water. The power drawn, gas hold-up and k(L)a (oxygen mass transfer rate) obtained were compared with those for the 6DT reported in literature. As a result, it was found that the gas handling capacities of the 6HB and A315 are superior to that of the 6DT.

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KW - flooding-loading transition

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KW - gas hold-up

KW - cavity structure

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Gas dispersion characteristics of newly developed impellers in a stirred vessel

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Keywords

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