Mass Transfer in Highly Viscous Liquids in a Bubble Column with Constant-Flow Nozzles
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概要
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Bubble columns with constant-flow nozzles were used to obtain high values of gas holdup ε and volumetric mass transfer coefficient kLa for highly viscous liquids at relatively low gas-flow rates.Effects of various factors on ε, kLa, mass transfer coefficient kL, bubble volume VB formed at constant-flow nozzle, and gas–liquid interfacial area a were investigated experimentally. Liquid viscosity, superficial gas velocity, number of constant-flow nozzles and pitch affected ε, kLa, kL, VB and a. The experimental results were correlated by dimensionless equations, which were compared with previous works.For a given energy input, a in this bubble column was larger than that in conventional bubble columns with a perforated plate as gas distributor.
- 社団法人 化学工学会の論文
著者
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Terasaka Koichi
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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Tsuge Hideki
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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