Journal
CHEMICAL ENGINEERING SCIENCE
Volume 65, Issue 20, Pages 5527-5536Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2010.07.021
Keywords
Airlift loop reactor; Bubbly flow; Two-fluid model; Computational fluid dynamics (CFD); Mass transfer coefficient; Interphase decoupling algorithm
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Funding
- National Natural Science Foundation of China [20990224, 20976177]
- National Science Fund for Distinguished Young Scholars, 973 Program [2010CB630904]
- National Project of Scientific and Technical Supporting Program [2008BAF33B03]
- 863 Project [2007AA060904]
- Jiangsu Province Projects [BY2009133, BE2008086]
- China Postdoctoral Science Foundation [2008044065, 200902138]
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Steady state simulation of the hydrodynamics and mass transfer in bubbly flow in an axisymmetric internal airlift loop reactor (IALR) with the special treatment of interphase decoupling and outlet boundary conditions is performed, which is based on a Favre averaging two-fluid model for multiphase flow. Different models of mass transfer coefficient are compared and validated with the literature data. A model for describing the mass transfer for a wide range of superficial gas velocity is chosen and the predicted mass transfer coefficient agrees well with the experimental data in the literature. The numerical procedure can be used as a tool for the design and scale-up of IALRs. (C) 2010 Elsevier Ltd. All rights reserved.
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