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PEBA/PDMS Composite Multilayer Hollow Fiber Membranes for the Selective Separation of Butanol by Pervaporation

The growing interest in the production of biofuels has motivated numerous studies on separation techniques that allow the separation/concentration of organics produced by fermentation, improving productivity and performance. In this work, the preparation and characterization of new butanol-selective...

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Autores principales: Arregoitia-Sarabia, Carla, González-Revuelta, Daniel, Fallanza, Marcos, Ortiz, Alfredo, Gorri, Daniel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9610642/
https://www.ncbi.nlm.nih.gov/pubmed/36295765
http://dx.doi.org/10.3390/membranes12101007
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author Arregoitia-Sarabia, Carla
González-Revuelta, Daniel
Fallanza, Marcos
Ortiz, Alfredo
Gorri, Daniel
author_facet Arregoitia-Sarabia, Carla
González-Revuelta, Daniel
Fallanza, Marcos
Ortiz, Alfredo
Gorri, Daniel
author_sort Arregoitia-Sarabia, Carla
collection PubMed
description The growing interest in the production of biofuels has motivated numerous studies on separation techniques that allow the separation/concentration of organics produced by fermentation, improving productivity and performance. In this work, the preparation and characterization of new butanol-selective membranes was reported. The prepared membranes had a hollow fiber configuration and consisted of two dense selective layers: a first layer of PEBA and a second (outer) layer of PDMS. The membranes were tested to evaluate their separation performance in the selective removal of organics from a synthetic ABE solution. Membranes with various thicknesses were prepared in order to evaluate the effect of the PDMS protective layer on permeant fluxes and membrane selectivity. The mass transport phenomena in the pervaporation process were characterized using a resistances-in-series model. The experimental results showed that PEBA as the material of the dense separating layer is the most favorable in terms of selectivity towards butanol with respect to the other components of the feed stream. The addition of a protective layer of PDMS allows the sealing of possible pinholes; however, its thickness should be kept as small as possible since permeation fluxes decrease with increasing thickness of PDMS and this material also has greater selectivity towards acetone compared to other feed components.
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spelling pubmed-96106422022-10-28 PEBA/PDMS Composite Multilayer Hollow Fiber Membranes for the Selective Separation of Butanol by Pervaporation Arregoitia-Sarabia, Carla González-Revuelta, Daniel Fallanza, Marcos Ortiz, Alfredo Gorri, Daniel Membranes (Basel) Article The growing interest in the production of biofuels has motivated numerous studies on separation techniques that allow the separation/concentration of organics produced by fermentation, improving productivity and performance. In this work, the preparation and characterization of new butanol-selective membranes was reported. The prepared membranes had a hollow fiber configuration and consisted of two dense selective layers: a first layer of PEBA and a second (outer) layer of PDMS. The membranes were tested to evaluate their separation performance in the selective removal of organics from a synthetic ABE solution. Membranes with various thicknesses were prepared in order to evaluate the effect of the PDMS protective layer on permeant fluxes and membrane selectivity. The mass transport phenomena in the pervaporation process were characterized using a resistances-in-series model. The experimental results showed that PEBA as the material of the dense separating layer is the most favorable in terms of selectivity towards butanol with respect to the other components of the feed stream. The addition of a protective layer of PDMS allows the sealing of possible pinholes; however, its thickness should be kept as small as possible since permeation fluxes decrease with increasing thickness of PDMS and this material also has greater selectivity towards acetone compared to other feed components. MDPI 2022-10-17 /pmc/articles/PMC9610642/ /pubmed/36295765 http://dx.doi.org/10.3390/membranes12101007 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Arregoitia-Sarabia, Carla
González-Revuelta, Daniel
Fallanza, Marcos
Ortiz, Alfredo
Gorri, Daniel
PEBA/PDMS Composite Multilayer Hollow Fiber Membranes for the Selective Separation of Butanol by Pervaporation
title PEBA/PDMS Composite Multilayer Hollow Fiber Membranes for the Selective Separation of Butanol by Pervaporation
title_full PEBA/PDMS Composite Multilayer Hollow Fiber Membranes for the Selective Separation of Butanol by Pervaporation
title_fullStr PEBA/PDMS Composite Multilayer Hollow Fiber Membranes for the Selective Separation of Butanol by Pervaporation
title_full_unstemmed PEBA/PDMS Composite Multilayer Hollow Fiber Membranes for the Selective Separation of Butanol by Pervaporation
title_short PEBA/PDMS Composite Multilayer Hollow Fiber Membranes for the Selective Separation of Butanol by Pervaporation
title_sort peba/pdms composite multilayer hollow fiber membranes for the selective separation of butanol by pervaporation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9610642/
https://www.ncbi.nlm.nih.gov/pubmed/36295765
http://dx.doi.org/10.3390/membranes12101007
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