Two-phase hydrodynamic study of a rectangular air-lift loop reactor with an internal baffle

作     者：Couvert, A Roustan, M Chatellier, P 

作者机构：Inst Natl Sci Appl Dpt GPI LIPE EA 833 F-31077 Toulouse France CIRSEE Lyonnaise F-78230 Le Pecq France 

出 版 物：《CHEMICAL ENGINEERING SCIENCE》 (化学工程科学)

年 卷 期：1999年第54卷第21期

页      面：5245-5252页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 

主　　题：air-lift reactor hydrodynamic gas hold-up liquid velocity bubble diameter modelling 

摘      要：The objective of this study is to characterise the two-phase flow hydrodynamic behaviour of a rectangular air-lift loop reactor. The local and global gas hold-up, the global liquid circulation velocity, and the bubbles diameter, were measured and correlated to the superficial gas velocity or the pressure drop created by the gas sparger. The influence of geometrical and operating parameters was also studied. Then, a mathematical model was developed to predict the average gas hold-up (respectively, in the riser and the downcomer), and the global liquid circulation velocity. It was validated with experimental data. (C) 1999 Elsevier Science Ltd. All rights reserved.