Abstract
The current work is concerned with the development of highly selective facilitated transport membranes for olefin/paraffin separation. With sorption measurements AgCIO4 was chosen as the best carrier salt. AgCIO4 was embedded into two different polyether-block-amide copolymers-Pebax®4011 and Pebax®2533-with up to 41 wt.% of Ag+. The solubility of the carrier in polymer the influence of humidity on the separation characteristics of the membranes and aging of membranes were studied. Pebax®2533/AgCIO4 membranes with 36 wt.% of Ag+ made from intentionally aged coating solutions showed the best results. For a humidified equimolar ethene/ethane mixture ethene fluxes in the range of 0.1 to 0.2 m3/m2 h bar and gas mixture selectivities of 110 to 190 were measured.
Original language | English (US) |
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Pages (from-to) | 339-345 |
Number of pages | 7 |
Journal | Desalination |
Volume | 145 |
Issue number | 1-3 |
DOIs | |
State | Published - Sep 10 2002 |
Externally published | Yes |
Keywords
- Facilitated transport
- Gas separation
- Olefin/parafin
- Pebax
- Polyether-block-amide copolymer (PEBA)
- Solid-solution
ASJC Scopus subject areas
- General Chemistry
- Water Science and Technology
- General Chemical Engineering
- Mechanical Engineering
- General Materials Science