Detailed modeling of hydrodynamics mass transfer and chemical reactions in a bubble column using a discrete bubble model

Share/Save/Bookmark

Darmana, D. and Deen, N.G. and Kuipers, J.A.M. (2005) Detailed modeling of hydrodynamics mass transfer and chemical reactions in a bubble column using a discrete bubble model. Chemical Engineering Science, 60 (12). pp. 3383-3404. ISSN 0009-2509

[img]
Preview
PDF
1673Kb
Abstract:A 3D discrete bubble model is adopted to investigate complex behavior involving hydrodynamics, mass transfer and chemical reactions in a gas¿liquid bubble column reactor. In this model a continuum description is adopted for the liquid phase and additionally each individual bubble is tracked in a Lagrangian framework, while accounting for bubble¿bubble and bubble¿wall interactions via an encounter model. The mass transfer rate is calculated for each individual bubble using a surface renewal model accounting for the instantaneous and local properties of the liquid phase in its vicinity. The distributions in space of chemical species residing in the liquid phase are computed from the coupled species balances considering the mass transfer from bubbles and reactions between the species. The model has been applied to simulate chemisorption of CO2 bubbles in NaOH solutions. Our results show that apart from hydrodynamics behavior, the model is able to predict the bubble size distribution as well as temporal and spatial variations of each chemical species involved.
Item Type:Article
Copyright:Copyright © 2005 Elsevier Ltd
Research Group:
Link to this item:http://purl.utwente.nl/publications/54582
Official URL:http://dx.doi.org/10.1016/j.ces.2005.01.025
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 228865