| 搅拌槽内温度对气含率的影响 |
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| 引用本文： | 高正明,施力田. 搅拌槽内温度对气含率的影响[J]. 中国化学工程学报, 2003, 11(2): 204-207 |
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| 作者姓名： | 高正明 施力田 |
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| 作者单位： | CollegeofChemicalEngineering,BeijingUniversityofChemicalTechnology,Beijing100029,China |
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| 摘 要： | Gas holdups in ambient gassed and hot sparged systems with multiple modern impellers and the effect of temperature on gas holdup are reported,The operating temperature has a great impact on gas holdup though the gas dispersion regime in the hot sparged system is similar to the ambient gassed condition,The gas holdup under the elevated temperature and the ambient gassed operation is successfully correlated.With the sarme total gas flow rate and power input,the gas holdup in the hot sparged system(say near the boiling point)is only about half of that in the ambient system ,The results imply that almost all existing hot sparged reactors have been designed on the basis of incorrect estimates of the gas holdup during operation.
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| 关 键 词： | 搅拌槽 温度 气含率 搅拌过程 气体扩散 |
| 修稿时间： | |
Effect of Temperature on Gas Hold-up in Aerated Stirred Tanks |
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| GAO Zhengming,SHI Litian. Effect of Temperature on Gas Hold-up in Aerated Stirred Tanks[J]. Chinese Journal of Chemical Engineering, 2003, 11(2): 204-207 |
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| Authors: | GAO Zhengming SHI Litian |
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| Affiliation: | College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Gas holdups in ambient gassed and hot sparged systems with multiple modern impellers and the effect of temperature on gas holdup are reported. The operating temperature has a great impact on gas holdup though the gas dispersion regime in the hot sparged system is similar to the ambient gassed condition. The gas holdup under the elevated temperature and the ambient gassed operation is successfully correlated. With the same total gas flow rate and power input, the gas holdup in the hot sparged system (say near the boiling point) is only about half of that in the ambient system. The results imply that almost all existing hot sparged reactors have been designed on the basis of incorrect estimates of the gas holdup during operation. |
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| Keywords: | gas holdup temperature effect gas dispersion hot sparged reactors radar probe stirred tank |
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