Heterogeneous mass transfer models for gas absorption in multiphase systems

Citation
Dwf. Brilman et al., Heterogeneous mass transfer models for gas absorption in multiphase systems, CHEM ENG SC, 55(15), 2000, pp. 2793-2812
Citations number
30
Categorie Soggetti
Chemical Engineering
Journal title
CHEMICAL ENGINEERING SCIENCE
ISSN journal
00092509 → ACNP
Volume
55
Issue
15
Year of publication
2000
Pages
2793 - 2812
Database
ISI
SICI code
0009-2509(200008)55:15<2793:HMTMFG>2.0.ZU;2-3
Abstract
Heterogeneous, instationary 2-D and 3-D mass transfer models were developed to study the effect of dispersed liquid-phase droplets near the gas-liquid interface on the local gas absorption rate. It was found among other thing s that droplets (or particles) influence local mass transfer rates over an area exceeding largely the projection of the droplets on the gas-liquid int erface. For a specific application particle-particle interaction was studie d and could be described by a single parameter, depending only on the minim um interparticle distance. For gas absorption flux prediction an unit cell must be defined. The sensitivity of the absorption flux to the definition o f the unit cell was investigated. Finally, a complete strategy to arrive at gas absorption flux prediction from single particle simulations has been p roposed. (C) 2000 Elsevier Science Ltd. All rights reserved.