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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...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2021
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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). |
format | Online Article Text |
id | pubmed-8437021 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
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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