| Download | - View accepted manuscript: Pervaporative enrichment of 2,3-butanediol from its mixture with 1-butanol using a polydimethylsiloxane and ZSM-5 mixed matrix membrane : effects of ethanol as a by-product (PDF, 2.0 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1002/cjce.20698 |
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| Author | Search for: Shao, Pinghai1; Search for: Kumar, Ashwani1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Chemical Process and Environmental Technology
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| Format | Text, Article |
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| Subject | pervaporation; coupled transport; mixed matrix membrane; 2,3-butandiol; ethanol |
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| Abstract | A ZSM-5 filled polydimethylsiloxane membrane with 44.4 wt.% zeolite loading was used in the pervaporative removal of 1-butanol from its mixtures with 1-butanol. A small quantity of ethanol was added to the feed as a by-product to test the response of the membrane. It was found that the permeation behaviour of other feed components was changed and membrane selectivity decreased. This change was attributed to the frequently-observed inter-component coupled transport in multi-component feed systems. The impact of ethanol on recovery of 2,3-butanediol was evaluated using a simulated continuous operation, which enriched 2,3-butanediol to 99.5 wt.% from a feed containing 5 wt.% 2,3-butanediol and less than 1.0 wt.% ethanol. It was observed that membrane selectivity improves as ethanol concentration decreases in the stream due to its preferential removal. The final recovery of 2,3-butanediol was not significantly reduced as the concentration of ethanol was below 1.0 wt.%. |
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| Publication date | 2011-12-07 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 52895 |
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| NPARC number | 20318150 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 4ca5fd20-a2eb-431e-9d77-825894075764 |
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| Record created | 2012-07-19 |
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| Record modified | 2020-04-21 |
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