LOCAL GAS HOLDUP DISTRIBUTIONS IN NON-AMBIENT STIRRED TANKS WITH MULTIPLE IMPELLERS

GAO Zhengming; SHI Litian; ZHENG Guojun

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LOCAL GAS HOLDUP DISTRIBUTIONS IN NON-AMBIENT STIRRED TANKS WITH MULTIPLE IMPELLERS

更新时间：2025-12-10

- LOCAL GAS HOLDUP DISTRIBUTIONS IN NON-AMBIENT STIRRED TANKS WITH MULTIPLE IMPELLERS
- CIESC Journal Issue 9, (2002)
- 作者机构：
  
  北京化工大学化学工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 September 2002，
  
  Published：25 September 2002
- 稿件说明：
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GAO Zhengming, SHI Litian, ZHENG Guojun. LOCAL GAS HOLDUP DISTRIBUTIONS IN NON-AMBIENT STIRRED TANKS WITH MULTIPLE IMPELLERS[J]. CIESC Journal, 2002, (9).
DOI：

GAO Zhengming, SHI Litian, ZHENG Guojun. LOCAL GAS HOLDUP DISTRIBUTIONS IN NON-AMBIENT STIRRED TANKS WITH MULTIPLE IMPELLERS[J]. CIESC Journal, 2002, (9). DOI：

摘要

Abstract

Vertical gas holdup distributions in ambient gassed

hot sparged and boiling systems in stirred tanks using multiple 6 hollow blade disc turbines(CD-6)are reported.The local gas holdup in the boiling system is dramatically different from that in the ambient gassed or hot sparged system whether in terms of value or distribution.Under the same total gas flow rate and impeller speed

the local gas holdup is much smaller in the boiling system than that in the ambient gassed or hot sparged system.The hot sparged system has similar vertical gas holdup distributions

with maxima in similar locations but with smaller local gas holdup overall

to those of the ambient gassed system.The designs of existing hot sparged and boiling reactors are based on the ambient gassed system and not optimal.The results are of particular relevance to the design and operation of reactors with hot sparged or boiling liquids.

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