Impact of Sub-Ambient Temperature on Aging Rate and Gas Separation Properties of Polymers of Intrinsic Microporosity

Autor:	Pierre Dieudonné, Riccardo Rea, Elsa Lasseuguette, Maria-Chiara Ferrari
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	carbon capture gas permeation sub-ambient temperature glassy polymers aging CO2/N2 separation Chemical technology TP1-1185 Chemical engineering TP155-156
Zdroj:	Membranes, Vol 14, Iss 6, p 132 (2024)
Druh dokumentu:	article
ISSN:	14060132 2077-0375
DOI:	10.3390/membranes14060132
Popis:	Aging in polymers of intrinsic microporosity has slowed exploitation due to a decay in performance over time since densification makes them unsuitable for industrial applications. This work aimed to study the impact of the operation and storage temperature on the gas separation properties and aging rates of PIM-1 self-standing films. The permeability, diffusivity, and solubility of the tested membranes were monitored through permeation tests for pure carbon dioxide and nitrogen at a maximum upstream pressure of 1.3 bar for temperatures ranging from −20 °C to 25 °C. This study found significant benefits in the operation of glassy polymeric membranes at low temperatures, resulting in a favourable trade-off in separation performance and a reduction in the aging rate by three orders of magnitude. This brings new opportunities for the industrial application of PIMs in innovative carbon capture processes.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/22e34e0fe1b046fa8b2ca6827dbac19e Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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