Local gas distribution and mass transfer characteristics in an annulus-rising airlift reactor with non-Newtonian fluid
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- 作者：Mei Hana ; mei.han@lut.fi" class="auth_mail" title="E-mail the corresponding author ; Gerardo Gonzá ; lezb ; Marko Vauhkonenb ; Arto Laaria ; Tuomas Koiranena
- 关键词：Airlift reactor ; Electrical impedance tomography ; Non-Newtonian fluid ; Mass transfer ; Gas holdup distribution ; Gas-liquid interfacial area
- 刊名：Chemical Engineering Journal
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：308
- 期：Complete
- 页码：929-939
- 全文大小：1679 K
文摘
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3D EIT technique was applied to investigate local gas holdup in an ALR.
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Reduction in the uniformity of gas distribution with increasing viscosity is observed.
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The highest local interfacial area is found in the riser fully developed flow zone.
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kL increases with d32 both in Newtonian and non-Newtonian fluid.
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Empirical correlations for local gas holdup and kLa are provided.