A method for evaluation of mass transfer coefficients in the different regions of air lift reactors

✍ Scribed by J.C. Merchuk; G. Osemberg; M. Siegel; M. Shacham

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 477 KB
• Volume: 47
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(92)87038-r

✦ Synopsis

The present state of the art in the experimental determination of mass transfer coeftfticient in Air Lift Reactors is reviewed. A criterion which allows to decide whether the assumption of perfect mixing of the liquid phase is valid was experimentally verified. For the cases where such assumption does not hold, a new method that renders local values of Kt_a in each of the regions of the reactor (riser, downcomer and gas separator) is presented. The model is based on a fluid dynamic structured model of the system.