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Permeation of Ternary Mixture Containing H(2)S, CO(2) and CH(4) in Aquivion(®) Perfluorosulfonic Acid (PFSA) Ionomer Membranes

Aquivion(®) E87-12S Perfluorosulfonated acid ionomer material (PFSA) has been studied as a membrane technology for natural gas sweetening from CO(2), H(2)S due to its interesting chemical and mechanical stability and good separation performance for polar compounds in humid environments. In the prese...

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Autores principales: Signorini, Virginia, Giacinti Baschetti, Marco, Pizzi, Diego, Merlo, Luca
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9693064/
https://www.ncbi.nlm.nih.gov/pubmed/36363589
http://dx.doi.org/10.3390/membranes12111034
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author Signorini, Virginia
Giacinti Baschetti, Marco
Pizzi, Diego
Merlo, Luca
author_facet Signorini, Virginia
Giacinti Baschetti, Marco
Pizzi, Diego
Merlo, Luca
author_sort Signorini, Virginia
collection PubMed
description Aquivion(®) E87-12S Perfluorosulfonated acid ionomer material (PFSA) has been studied as a membrane technology for natural gas sweetening from CO(2), H(2)S due to its interesting chemical and mechanical stability and good separation performance for polar compounds in humid environments. In the present work, permeation of the H(2)S/CO(2)/CH(4) ternary mixture in this short-side PFSA chain was investigated at pressures up to 10 bar, temperatures up to 50 °C, and in a range of relative humidity (RH) from 20% to 90%. The results obtained confirm the strong dependence of Aquivion(®) on water activity and temperature, and its ability to separate gases based on their water solubility without substantial differences between pure and mixed gas experiments. Indeed, even when tested in ternary mixture, the permeation behavior remains similar to that observed for pure components and binary mixtures. In particular, the permeability of H(2)S is higher than that of CO(2) and methane CH(4), reaching values of 500 Barrer at 50 °C and 80% RH, against 450 and 23 Barrer for the other two gases respectively. Additionally, when tested at higher pressures of up to 10 bar under humid conditions, the membrane properties remained largely unchanged, thus confirming the overall stability and durability of Aquivion(®) E87-12S in acid environments.
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spelling pubmed-96930642022-11-26 Permeation of Ternary Mixture Containing H(2)S, CO(2) and CH(4) in Aquivion(®) Perfluorosulfonic Acid (PFSA) Ionomer Membranes Signorini, Virginia Giacinti Baschetti, Marco Pizzi, Diego Merlo, Luca Membranes (Basel) Article Aquivion(®) E87-12S Perfluorosulfonated acid ionomer material (PFSA) has been studied as a membrane technology for natural gas sweetening from CO(2), H(2)S due to its interesting chemical and mechanical stability and good separation performance for polar compounds in humid environments. In the present work, permeation of the H(2)S/CO(2)/CH(4) ternary mixture in this short-side PFSA chain was investigated at pressures up to 10 bar, temperatures up to 50 °C, and in a range of relative humidity (RH) from 20% to 90%. The results obtained confirm the strong dependence of Aquivion(®) on water activity and temperature, and its ability to separate gases based on their water solubility without substantial differences between pure and mixed gas experiments. Indeed, even when tested in ternary mixture, the permeation behavior remains similar to that observed for pure components and binary mixtures. In particular, the permeability of H(2)S is higher than that of CO(2) and methane CH(4), reaching values of 500 Barrer at 50 °C and 80% RH, against 450 and 23 Barrer for the other two gases respectively. Additionally, when tested at higher pressures of up to 10 bar under humid conditions, the membrane properties remained largely unchanged, thus confirming the overall stability and durability of Aquivion(®) E87-12S in acid environments. MDPI 2022-10-24 /pmc/articles/PMC9693064/ /pubmed/36363589 http://dx.doi.org/10.3390/membranes12111034 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
Signorini, Virginia
Giacinti Baschetti, Marco
Pizzi, Diego
Merlo, Luca
Permeation of Ternary Mixture Containing H(2)S, CO(2) and CH(4) in Aquivion(®) Perfluorosulfonic Acid (PFSA) Ionomer Membranes
title Permeation of Ternary Mixture Containing H(2)S, CO(2) and CH(4) in Aquivion(®) Perfluorosulfonic Acid (PFSA) Ionomer Membranes
title_full Permeation of Ternary Mixture Containing H(2)S, CO(2) and CH(4) in Aquivion(®) Perfluorosulfonic Acid (PFSA) Ionomer Membranes
title_fullStr Permeation of Ternary Mixture Containing H(2)S, CO(2) and CH(4) in Aquivion(®) Perfluorosulfonic Acid (PFSA) Ionomer Membranes
title_full_unstemmed Permeation of Ternary Mixture Containing H(2)S, CO(2) and CH(4) in Aquivion(®) Perfluorosulfonic Acid (PFSA) Ionomer Membranes
title_short Permeation of Ternary Mixture Containing H(2)S, CO(2) and CH(4) in Aquivion(®) Perfluorosulfonic Acid (PFSA) Ionomer Membranes
title_sort permeation of ternary mixture containing h(2)s, co(2) and ch(4) in aquivion(®) perfluorosulfonic acid (pfsa) ionomer membranes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9693064/
https://www.ncbi.nlm.nih.gov/pubmed/36363589
http://dx.doi.org/10.3390/membranes12111034
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