Flue gas dehydration using polymer membranes

Sijbesma, Hylke; Nymeijer, Kitty; Marwijk, Rob van; Heijboer, Rob; Potreck, Jens; Weßling, Matthias

doi:10.1016/j.memsci.2008.01.024

Cited by 298 publications

(185 citation statements)

References 34 publications

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“…[7][8][9] For multiple reasons, SPEEK membranes are exposed to higher temperatures. PEM fuel cells have operating advantages at higher temperatures.…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability of Sulfonated Poly(Ether Ether Ketone) Films: on the Role of Protodesulfonation

Koziara

Kappert

Ogieglo

et al. 2015

Macromol. Mater. Eng.

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Thin film and bulk, sulfonated poly(ether ether ketone) (SPEEK) have been subjected to a thermal treatment at 160–250 °C for up to 15 h. Exposing the films to 160 °C already causes partial desulfonation, and heating to temperatures exceeding 200 °C results in increased conjugation in the material, most likely via a slight cross‐linking by H‐substitution. It is well‐known that the sulfonate proton plays a major role in the desulfonation reactions, and exchanging the protons with other cations can inhibit both protodesulfonation as well as electrophilic cross‐linking reactions of the sulfonate group with other chains. Yet, the implications of such ion‐exchange for the thermal processing of sulfonated polymer films has not been recognized. Our study demonstrates that the ion exchange stabilizes thin films and bulk SPEEK up to temperatures exceeding 200 °C, opening up ways for the thermal processing of SPEEK in the temperature range of 160–220 °C without adverse effects.

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“…[7][8][9] For multiple reasons, SPEEK membranes are exposed to higher temperatures. PEM fuel cells have operating advantages at higher temperatures.…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability of Sulfonated Poly(Ether Ether Ketone) Films: on the Role of Protodesulfonation

Koziara

Kappert

Ogieglo

et al. 2015

Macromol. Mater. Eng.

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“…Investigation on gas permeation properties of sulfonated poly(ether ether ketone) (S-PEEK) is almost unexplored in the literature and limited to flue gas dehydration [17][18][19]. Moreover, polymers used for these studies were prepared by post-sulfonating the polymer [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Mixed-gas CO2/CH4 and CO2/N2 separation with sulfonated PEEK membranes

Khan

Vankelecom

2011

Journal of Membrane Science

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“…Previous research has demonstrated that exposure to water vapor can reduce the permselectivity of the polyimide 6FDA-TMPDA by 50% [6] and for high performance PIM-1 membranes by 38% [7]. The majority of the research has focused on water removal from the feed stream, in dehydration applications [8][9][10][11][12][13][14]. In contrast, perfluorinated polymers Teflon AF1600 and Hyflon AD60 membranes demonstrate significant resistance to separation performance loss in the presence of water vapor [15].…”

Section: Introductionmentioning

confidence: 99%

Water Resistant Composite Membranes for Carbon Dioxide Separation from Methane

Scholes

2018

Applied Sciences

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Abstract:Membranes that are resistant to water vapor permeation have potential in natural gas sweetening by reducing the need for pretreatment. The perfluorinated polymer Teflon AF1600 has proven resistance to water vapor, which is adapted here in the form of composite membranes consisting of a Teflon AF1600 protective layer on membranes of the polyimide 4,4 -(hexafluoroisopropylidene) diphthalic anhydride 2,3,5,6-tetramethyl-1,4-phenylenediamine (6FDA-TMPDA) as well as Polymer of Intrinsic Micro-porosity (PIM-1). The permeability of CO 2 and CH 4 through the composite membranes was shown to be a function of the respective permeabilities of the individual polymer layers, with the Teflon AF1600 layer providing the majority of the resistance to mass transfer. Upon exposure to water, the composite membranes had reduced water permeation of 7-13% compared to pure membranes of 6FDA-TMPDA and PIM-1, because of the water resistance of the Teflon AF1600 layer. It was observed that water permeated as clusters through the composite structure. Under CO 2 -CH 4 mixed gas conditions, 6FDA-TMPDA layer permselectivity performance was reduced and became comparable to Teflon AF1600, while the PIM-1 layer retained much of its high permselectivity performance. Importantly, at water activities below 0.2 the PIM-1 composite membrane achieved higher permeability for CO 2 compared to water.

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Flue gas dehydration using polymer membranes

Cited by 298 publications

References 34 publications

Thermal Stability of Sulfonated Poly(Ether Ether Ketone) Films: on the Role of Protodesulfonation

Thermal Stability of Sulfonated Poly(Ether Ether Ketone) Films: on the Role of Protodesulfonation

Mixed-gas CO2/CH4 and CO2/N2 separation with sulfonated PEEK membranes

Water Resistant Composite Membranes for Carbon Dioxide Separation from Methane

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