Abstract
The separation of equimolar mixtures of i-butane and n-butane through poly(1-trimethylsilyl-1-propyne)/MFI composite membranes was studied. Membranes were characterized by XRD and SEM. Addition of 50 wt% MFI particles into a PTMSP matrix showed increased permeability and simultaneous improved selectivity in the temperature range 25-200 °C. The best improvement was seen at 150 °C for the composites, giving almost threefold increase in permeability and 56% higher n-butane/i-butane selectivity over the pure polymer. To our knowledge, this is the first successful demonstration of the incorporation of a molecular sieve into a polymer matrix for butane isomer separations. The composite membranes were also tested for separations of n-hexane/2,2-dimethylbutane and p-xylene/o-xylene.
| Original language | English |
|---|---|
| Pages (from-to) | 330-338 |
| Number of pages | 9 |
| Journal | Microporous and Mesoporous Materials |
| Volume | 110 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - 2008 Apr 15 |
| Externally published | Yes |
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Keywords
- Hybrid materials
- Membranes
- Permeation properties
- Poly(1-trimethylsilyl-1-propyne)
- Zeolites
ASJC Scopus subject areas
- Catalysis
- Materials Science(all)
Cite this
Poly(1-trimethylsilyl-1-propyne)/MFI composite membranes for butane separations. / Woo, M.; Choi, Jungkyu; Tsapatsis, M.
In: Microporous and Mesoporous Materials, Vol. 110, No. 2-3, 15.04.2008, p. 330-338.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Poly(1-trimethylsilyl-1-propyne)/MFI composite membranes for butane separations
AU - Woo, M.
AU - Choi, Jungkyu
AU - Tsapatsis, M.
PY - 2008/4/15
Y1 - 2008/4/15
N2 - The separation of equimolar mixtures of i-butane and n-butane through poly(1-trimethylsilyl-1-propyne)/MFI composite membranes was studied. Membranes were characterized by XRD and SEM. Addition of 50 wt% MFI particles into a PTMSP matrix showed increased permeability and simultaneous improved selectivity in the temperature range 25-200 °C. The best improvement was seen at 150 °C for the composites, giving almost threefold increase in permeability and 56% higher n-butane/i-butane selectivity over the pure polymer. To our knowledge, this is the first successful demonstration of the incorporation of a molecular sieve into a polymer matrix for butane isomer separations. The composite membranes were also tested for separations of n-hexane/2,2-dimethylbutane and p-xylene/o-xylene.
AB - The separation of equimolar mixtures of i-butane and n-butane through poly(1-trimethylsilyl-1-propyne)/MFI composite membranes was studied. Membranes were characterized by XRD and SEM. Addition of 50 wt% MFI particles into a PTMSP matrix showed increased permeability and simultaneous improved selectivity in the temperature range 25-200 °C. The best improvement was seen at 150 °C for the composites, giving almost threefold increase in permeability and 56% higher n-butane/i-butane selectivity over the pure polymer. To our knowledge, this is the first successful demonstration of the incorporation of a molecular sieve into a polymer matrix for butane isomer separations. The composite membranes were also tested for separations of n-hexane/2,2-dimethylbutane and p-xylene/o-xylene.
KW - Hybrid materials
KW - Membranes
KW - Permeation properties
KW - Poly(1-trimethylsilyl-1-propyne)
KW - Zeolites
UR - http://www.scopus.com/inward/record.url?scp=39849084077&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=39849084077&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2007.06.044
DO - 10.1016/j.micromeso.2007.06.044
M3 - Article
VL - 110
SP - 330
EP - 338
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
SN - 1387-1811
IS - 2-3
ER -