Details
| Original language | English |
|---|---|
| Pages (from-to) | 45-53 |
| Number of pages | 9 |
| Journal | Journal of membrane science |
| Volume | 515 |
| Early online date | 25 May 2016 |
| Publication status | E-pub ahead of print - 25 May 2016 |
Abstract
The preparation and performance of mixed matrix membranes (MMMs) based on polybenzimidazole (PBI) and ZIF-8 nanoparticles of different average sizes (50, 70 and 150 nm) as filler are reported. MMMs containing 10 and 20 wt% of ZIF-8 were tested for H2/CO2 separation (pre-combustion CO2 capture) at 150 °C and feed pressures from 3 to 6 bar. The addition of ZIF-8 resulted in a clear improvement in membrane performance. Embedding 20 wt% of ZIF-8 resulted in a H2 permeability increase of six times and the H2/CO2 selectivity increased nearly by 55% compared to the bare PBI polymer membrane. Both permeability and selectivity improved as the filler size increased, due to the lower degree of agglomeration of the largest particles, that may be less active owing to their smaller external surface area. MMMs synthesized using dry 150 nm ZIF-8 filler showed a better performance than those containing wet filler. Apart from agglomeration concerns favoring wet filler handling as evidenced by infrared characterization, the MMM preparation with wet filler is simpler than with dry filler. Finally, the reproducibility of the membranes was confirmed by a European interlaboratory Round Robin test involving three different institutions.
Keywords
- Interlaboratory test, Mixed matrix membrane, Polybenzimidazole (PBI), Pre-combustion CO capture, ZIF-8
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Materials Science(all)
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemical Engineering(all)
- Filtration and Separation
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In: Journal of membrane science, Vol. 515, 25.05.2016, p. 45-53.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Influence of ZIF-8 particle size in the performance of polybenzimidazole mixed matrix membranes for pre-combustion CO2 capture and its validation through interlaboratory test
AU - Sánchez-Laínez, Javier
AU - Zornoza, Beatriz
AU - Friebe, Sebastian
AU - Caro, Jürgen
AU - Cao, Shuai
AU - Sabetghadam, Anahid
AU - Seoane, Beatriz
AU - Gascon, Jorge
AU - Kapteijn, Freek
AU - Le Guillouzer, Clément
AU - Clet, Guillaume
AU - Daturi, Marco
AU - Téllez, Carlos
AU - Coronas, Joaquín
PY - 2016/5/25
Y1 - 2016/5/25
N2 - The preparation and performance of mixed matrix membranes (MMMs) based on polybenzimidazole (PBI) and ZIF-8 nanoparticles of different average sizes (50, 70 and 150 nm) as filler are reported. MMMs containing 10 and 20 wt% of ZIF-8 were tested for H2/CO2 separation (pre-combustion CO2 capture) at 150 °C and feed pressures from 3 to 6 bar. The addition of ZIF-8 resulted in a clear improvement in membrane performance. Embedding 20 wt% of ZIF-8 resulted in a H2 permeability increase of six times and the H2/CO2 selectivity increased nearly by 55% compared to the bare PBI polymer membrane. Both permeability and selectivity improved as the filler size increased, due to the lower degree of agglomeration of the largest particles, that may be less active owing to their smaller external surface area. MMMs synthesized using dry 150 nm ZIF-8 filler showed a better performance than those containing wet filler. Apart from agglomeration concerns favoring wet filler handling as evidenced by infrared characterization, the MMM preparation with wet filler is simpler than with dry filler. Finally, the reproducibility of the membranes was confirmed by a European interlaboratory Round Robin test involving three different institutions.
AB - The preparation and performance of mixed matrix membranes (MMMs) based on polybenzimidazole (PBI) and ZIF-8 nanoparticles of different average sizes (50, 70 and 150 nm) as filler are reported. MMMs containing 10 and 20 wt% of ZIF-8 were tested for H2/CO2 separation (pre-combustion CO2 capture) at 150 °C and feed pressures from 3 to 6 bar. The addition of ZIF-8 resulted in a clear improvement in membrane performance. Embedding 20 wt% of ZIF-8 resulted in a H2 permeability increase of six times and the H2/CO2 selectivity increased nearly by 55% compared to the bare PBI polymer membrane. Both permeability and selectivity improved as the filler size increased, due to the lower degree of agglomeration of the largest particles, that may be less active owing to their smaller external surface area. MMMs synthesized using dry 150 nm ZIF-8 filler showed a better performance than those containing wet filler. Apart from agglomeration concerns favoring wet filler handling as evidenced by infrared characterization, the MMM preparation with wet filler is simpler than with dry filler. Finally, the reproducibility of the membranes was confirmed by a European interlaboratory Round Robin test involving three different institutions.
KW - Interlaboratory test
KW - Mixed matrix membrane
KW - Polybenzimidazole (PBI)
KW - Pre-combustion CO capture
KW - ZIF-8
UR - http://www.scopus.com/inward/record.url?scp=84973575863&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2016.05.039
DO - 10.1016/j.memsci.2016.05.039
M3 - Article
AN - SCOPUS:84973575863
VL - 515
SP - 45
EP - 53
JO - Journal of membrane science
JF - Journal of membrane science
SN - 0376-7388
ER -