Study of a new membrane evaporator with a hydrophobic metallic membrane

Membrane evaporation (ME) is a new membrane contactor process combining the advantages of osmotic evaporation and membrane distillation. It is based on the concentration of an aqueous solution by continuous evaporation through a metallic hydrophobic membrane able to be heated. The driving force of t...

Full description

Saved in:
Bibliographic Details
Published in:Journal of membrane science 2007-02, Vol.289 (1), p.169-177
Main Authors: Hengl, N., Mourgues, A., Pomier, E., Belleville, M.P., Paolucci-Jeanjean, D., Sanchez, J., Rios, G.
Format: Article
Language:English
Subjects:
Chemical Sciences
Hydrophobic membrane
Membrane contactor
Membrane evaporator
Metallic membrane
Modelling
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Membrane evaporation (ME) is a new membrane contactor process combining the advantages of osmotic evaporation and membrane distillation. It is based on the concentration of an aqueous solution by continuous evaporation through a metallic hydrophobic membrane able to be heated. The driving force of the process is the difference of water vapour pressure between a feed of an aqueous solution and a downstream flow of dry gas at low pressure. In the present paper, this new technique is developed with two different membranes and their performance in terms of evaporation flux is studied through the influence of air velocity and heat contribution. The objective of these introductory attempts is to validate this new concept; hence preliminary experiments have been realized with pure water. Then, a first approach to model this system and a comparison with experimental results have been carried out.
ISSN:0376-7388
1873-3123
DOI:10.1016/j.memsci.2006.11.051