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Pre-combustion gas separation by ZIF-8-polybenzimidazole mixed matrix membranes in the form of hollow fibres—long-term experimental study

Polybenzimidazole (PBI) is a promising and suitable membrane polymer for the separation of the H(2)/CO(2) pre-combustion gas mixture due to its high performance in terms of chemical and thermal stability and intrinsic H(2)/CO(2) selectivity. However, there is a lack of long-term separation studies w...

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Autores principales: Perea-Cachero, Adelaida, Etxeberría-Benavides, Miren, David, Oana, Deacon, Adam, Johnson, Timothy, Malankowska, Magdalena, Téllez, Carlos, Coronas, Joaquín
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8437021/
https://www.ncbi.nlm.nih.gov/pubmed/34540255
http://dx.doi.org/10.1098/rsos.210660
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author Perea-Cachero, Adelaida
Etxeberría-Benavides, Miren
David, Oana
Deacon, Adam
Johnson, Timothy
Malankowska, Magdalena
Téllez, Carlos
Coronas, Joaquín
author_facet Perea-Cachero, Adelaida
Etxeberría-Benavides, Miren
David, Oana
Deacon, Adam
Johnson, Timothy
Malankowska, Magdalena
Téllez, Carlos
Coronas, Joaquín
author_sort Perea-Cachero, Adelaida
collection PubMed
description Polybenzimidazole (PBI) is a promising and suitable membrane polymer for the separation of the H(2)/CO(2) pre-combustion gas mixture due to its high performance in terms of chemical and thermal stability and intrinsic H(2)/CO(2) selectivity. However, there is a lack of long-term separation studies with this polymer, particularly when it is conformed as hollow fibre membrane. This work reports the continuous measurement of the H(2)/CO(2) separation properties of PBI hollow fibres, prepared as mixed matrix membranes with metal-organic framework (MOF) ZIF-8 as filler. To enhance the scope of the experimental approach, ZIF-8 was synthesized from the transformation of ZIF-L upon up-scaling the MOF synthesis into a 1 kg batch. The effects of membrane healing with poly(dimethylsiloxane), to avoid cracks and non-selective gaps, and operation conditions (use of sweep gas or not) were also examined at 200°C during approximately 51 days. In these conditions, for all the membrane samples studied, the H(2) permeance was in the 22–47 GPU range corresponding to 22–32 H(2)/CO(2) selectivity values. Finally, this work continues our previous report on this type of application (Etxeberria-Benavides et al. 2020 Sep. Purif. Technol. 237, 116347 (doi:10.1016/j.seppur.2019.116347)) with important novelties dealing with the use of ZIF-8 for the mixed matrix membrane coming from a green methodology, the long-term gas separation testing for more than 50 days and the study on the membrane operation under more realistic conditions (e.g. without the use of sweep gas).
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spelling pubmed-84370212021-09-17 Pre-combustion gas separation by ZIF-8-polybenzimidazole mixed matrix membranes in the form of hollow fibres—long-term experimental study Perea-Cachero, Adelaida Etxeberría-Benavides, Miren David, Oana Deacon, Adam Johnson, Timothy Malankowska, Magdalena Téllez, Carlos Coronas, Joaquín R Soc Open Sci Chemistry Polybenzimidazole (PBI) is a promising and suitable membrane polymer for the separation of the H(2)/CO(2) pre-combustion gas mixture due to its high performance in terms of chemical and thermal stability and intrinsic H(2)/CO(2) selectivity. However, there is a lack of long-term separation studies with this polymer, particularly when it is conformed as hollow fibre membrane. This work reports the continuous measurement of the H(2)/CO(2) separation properties of PBI hollow fibres, prepared as mixed matrix membranes with metal-organic framework (MOF) ZIF-8 as filler. To enhance the scope of the experimental approach, ZIF-8 was synthesized from the transformation of ZIF-L upon up-scaling the MOF synthesis into a 1 kg batch. The effects of membrane healing with poly(dimethylsiloxane), to avoid cracks and non-selective gaps, and operation conditions (use of sweep gas or not) were also examined at 200°C during approximately 51 days. In these conditions, for all the membrane samples studied, the H(2) permeance was in the 22–47 GPU range corresponding to 22–32 H(2)/CO(2) selectivity values. Finally, this work continues our previous report on this type of application (Etxeberria-Benavides et al. 2020 Sep. Purif. Technol. 237, 116347 (doi:10.1016/j.seppur.2019.116347)) with important novelties dealing with the use of ZIF-8 for the mixed matrix membrane coming from a green methodology, the long-term gas separation testing for more than 50 days and the study on the membrane operation under more realistic conditions (e.g. without the use of sweep gas). The Royal Society 2021-09-01 /pmc/articles/PMC8437021/ /pubmed/34540255 http://dx.doi.org/10.1098/rsos.210660 Text en © 2021 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited.
spellingShingle Chemistry
Perea-Cachero, Adelaida
Etxeberría-Benavides, Miren
David, Oana
Deacon, Adam
Johnson, Timothy
Malankowska, Magdalena
Téllez, Carlos
Coronas, Joaquín
Pre-combustion gas separation by ZIF-8-polybenzimidazole mixed matrix membranes in the form of hollow fibres—long-term experimental study
title Pre-combustion gas separation by ZIF-8-polybenzimidazole mixed matrix membranes in the form of hollow fibres—long-term experimental study
title_full Pre-combustion gas separation by ZIF-8-polybenzimidazole mixed matrix membranes in the form of hollow fibres—long-term experimental study
title_fullStr Pre-combustion gas separation by ZIF-8-polybenzimidazole mixed matrix membranes in the form of hollow fibres—long-term experimental study
title_full_unstemmed Pre-combustion gas separation by ZIF-8-polybenzimidazole mixed matrix membranes in the form of hollow fibres—long-term experimental study
title_short Pre-combustion gas separation by ZIF-8-polybenzimidazole mixed matrix membranes in the form of hollow fibres—long-term experimental study
title_sort pre-combustion gas separation by zif-8-polybenzimidazole mixed matrix membranes in the form of hollow fibres—long-term experimental study
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8437021/
https://www.ncbi.nlm.nih.gov/pubmed/34540255
http://dx.doi.org/10.1098/rsos.210660
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