Measurement of Gas-Liquid Mass Transfer in an Agitated Vessel. A Comparison between Different Impellers.
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- ZHU YONGGANG
- Thermal and Fluids Engineering, CSIRO Building, Construction and Engineering Highett
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- BANDOPADHAYAY PRATISH C.
- Thermal and Fluids Engineering, CSIRO Building, Construction and Engineering Highett
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- WU JIE
- Thermal and Fluids Engineering, CSIRO Building, Construction and Engineering Highett
Bibliographic Information
- Other Title
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- Messurement of Gas-Liquid Mass Transfer in an Agitated Vessel--A Comparison between Different Impellers
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Abstract
Measurement of mass transfer rate was carried out in an agitated vessel with gas sparging. The performance of mass transfer of several commonly used impellers (i.e. Lightnin A315 and A310, 45° pitched blade turbine, concave blade turbine, Rushton turbine, and Rushton turbine with holes) were examined systematically under the same fluid and tank conditions. A dynamic gassing-out method was used to measure the mass transfer rate of oxygen from gas to the de-ionised water. The variation of the dissolved oxygen concentration of the water was measured by a polarographic dissolved oxygen probe (ORION PCM800). The present data shows reasonable agreement with that in previous publications such as those of Linek et al. (1987), Hickman (1988), Warmoeskerken and Smith (1989), Martin et al. (1994), and Chen and Chen (1999). All the data collected here shows that van’t Riet’s (1979) expression, i.e.: kLa = α(P/V)0.4Us0.5 represents reasonably, well (to within ± 30%) the correlation of kLa with specific power P/V and superficial gas velocity Us. However, the present data seem to indicate that the radial flow impellers provide slightly higher (17%) mass transfer rate than the axial flow impellers.
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 34 (5), 579-584, 2001
The Society of Chemical Engineers, Japan
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Details 詳細情報について
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- CRID
- 1390001204565398144
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- NII Article ID
- 130000020145
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- NII Book ID
- AA00709658
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- COI
- 1:CAS:528:DC%2BD3MXktFWrsrg%3D
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- ISSN
- 18811299
- 00219592
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- NDL BIB ID
- 5807611
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed