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Type: Journal article
Title: Structure optimization of gas-liquid combined loop reactor using a CFD-PBE coupled model
Author: Nana, Qi
Kai, Zhang
Gang, Xu
Yongping, Yang
Hu, Zhonghao
Citation: Petroleum Science, 2012; 9(3):379-388
Publisher: China University of Petroleum
Issue Date: 2012
ISSN: 1672-5107
School/Discipline: School of Chemical Engineering
Statement of
Qi Nana, Zhang Kai, Xu Gang, Yang Yongping and Zhang Hu
Abstract: Flow characteristics, such as flow pattern, gas holdup, and bubble size distribution, in an internal loop reactor with external liquid circulation, are simulated to investigate the influence of reactor internals by using the computational fluid dynamics (CFD)-population balance equations (PBE) coupled model. Numerical results reveal that introducing a downcomer tube and a draft tube can help to improve the mass and heat transfer of the reactor through enhanced liquid circulation, increased gas holdup and reduced bubble diameter. The hydrodynamic behavior in the internal loop reactor with external liquid circulation can be managed effectively by adjusting the diameter and axial position of the draft tube.
Keywords: Loop reactor; Structure optimization; hydrodynamics; CFD-PBE coupled model
Rights: © China University of Petroleum (Beijing) and Springer-Verlag Berlin Heidelberg 2012
DOI: 10.1007/s12182-012-0222-9
Appears in Collections:Chemical Engineering publications

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