Selection of top layer materials for gas-liquid membrane contactors

Share/Save/Bookmark

Nymeijer, D.C. and Folkers, B. and Breebaart, I. and Mulder, M.H.V. and Wessling, M. (2004) Selection of top layer materials for gas-liquid membrane contactors. Journal of Applied Polymer Science, 92 (1). pp. 323-334. ISSN 0021-8995

[img]PDF
Restricted to UT campus only
: Request a copy
168Kb
Abstract:Gas-liquid membrane contactors frequently suffer from wetting of the microporous membrane. Stabilization layers at the liquid side of the membrane potentially prevent this wetting. We applied such stabilized membranes to the separation of olefins and paraffins using AgNO3 solutions as absorption liquid. The stabilization material requires permeation of olefins at minimum counter transport of water. Appropriate selection of the top layer material is crucial in this application. This report describes the selection of potential top layer materials. Dense films of the selected materials were prepared and used to determine ethylene and ethane permeabilities, to perform pervaporation experiments with water and a 3.5M solution of silver nitrate in water, and to determine the swelling behavior of the dense films in water and in a 3.5M silver nitrate solution. Based on the characterization experiments, ethylene propylenediene terpolymer is the most appropriate candidate with the highest potential for application in a gas-liquid membrane contactor for the separation of paraffins and olefins. It has a relatively high olefin permeability (46.4 Barrer) and a corresponding low water vapor permeability and low swelling tendency in a 3.5M silver nitrate solution (1490 Barrer and 0.14 wt %, respectively)
Item Type:Article
Copyright:© 2004 Wiley Periodicals, Inc.
Faculty:
Science and Technology (TNW)
Research Group:
Link to this item:http://purl.utwente.nl/publications/49553
Official URL:http://dx.doi.org/10.1002/app.20006
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 222156