Flue gas purification with membranes based on the polymer of intrinsic microporosity PIM-TMN-Trip

Stanovský, Petr; Žitková, Andrea; Kárászová, Magda; Šyc, Michal; Jansen, Johannes C.; Comesaña-Gándara, Bibiana; McKeown, Neil B.; Izák, Pavel

doi:10.1016/j.seppur.2020.116814

Cited by 16 publications

(9 citation statements)

References 36 publications

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“…331 PIM-TMN-Trip, another PIM with a triptycene unit in the backbone, did not show obvious CO 2 -induced plasticization effects when exposed to a feed mixture of 22.2 vol% CO 2 , 6.8 vol% O 2 , 70.2 vol% N 2 , and 2220 ppm SO 2 over a trans-membrane pressure difference from 1 to 4 bar. 332 However, as the CO 2 partial pressure was limited to less than 4 bar, plasticization may not have been observed, which would necessitate tests at higher feed pressures, if required for the application.…”

Section: Approaches To Mitigate Plasticizationmentioning

confidence: 99%

Penetrant-induced plasticization in microporous polymer membranes

Mizrahi Rodriguez,

Lin,

et al. 2024

Chem. Soc. Rev.

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Section: Approaches To Mitigate Plasticizationmentioning

confidence: 99%

Penetrant-induced plasticization in microporous polymer membranes

Mizrahi Rodriguez,

Lin,

et al. 2024

Chem. Soc. Rev.

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“…Remarkably, the mixed gas performance of PIM‐SBI‐Trip and PIM‐1/SBI‐Trip shows systematically higher selectivities than aged PIM‐TMN‐Trip and with similar CO 2 permeability (Figure S20, Supporting Information), demonstrating the potential of these ultrapermeable PIMs for biogas upgrading [ 32 ] and CO 2 capture from flue gases. [ 34 ] Previous work with benchmark polymer PIM‐1 shows significantly improved selectivity in hollow fiber membranes, [ 35 ] suggesting that also for the present polymers even better separation performance may be expected when prepared in the form of asymmetric or thin film composite membranes.…”

Section: Resultsmentioning

confidence: 85%

Ultrapermeable Polymers of Intrinsic Microporosity Containing Spirocyclic Units with Fused Triptycenes

Bezzu

Fuoco

Esposito

et al. 2021

Adv Funct Materials

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Polymers of intrinsic microporosity (PIMs), such as the archetypal spirobisindane‐based PIM‐1, are among the most promising new materials for making gas separation membranes with high permeance for potential use in high‐throughput applications. Here it is shown that ultrapermeable PIMs can be prepared by fusing rigid and bulky triptycene (Trip) to the spirobisindane (SBI) unit. PIM‐SBI‐Trip and its copolymer with PIM‐1 (PIM‐1/SBI‐Trip) are both ultrapermeable after methanol treatment (PCO2 > 20 000 Barrer). Old films, although less permeable, are more selective and therefore provide data that are close to the recently redefined Robeson upper bounds for the important CO2/CH4, CO2/N2, and O2/N2 gas pairs. Temperature‐dependent permeation measurements and analysis of the entropic and energetic contributions of the gas transport parameters show that the enhanced performance of these polymers is governed by strong size‐sieving character, mainly due to the energetic term of the diffusivity, and related to their high rigidity. Both polymers show a relatively weak pressure‐dependence in mixed gas permeability experiments up to 6 bar, suggesting a potential use for CO2 capture from flue gas or for the upgrading of biogas.

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“…The objective of the present study was to prove the practical applicability of this new membrane material, not only with model mixtures but also with real, industrially relevant gas streams. Such studies are extremely rare for PIMs with, to our knowledge, only the CO2 capture from a real flue gas stream by PIM-1 [30] or by PIM-TMN-Trip [31], the polymer used in the present study, being reported. Here, the transport and separation properties of PIM-TMN-Trip [21], were studied with both pure gas streams (CH4 and CO2) and mixed gas streams based on either model binary mixtures or on raw biogas.…”

Section: Introductionmentioning

confidence: 98%

Upgrading of raw biogas using membranes based on the ultrapermeable polymer of intrinsic microporosity PIM-TMN-Trip

Stanovský

Kárászová

Petrusová

et al. 2021

Journal of Membrane Science

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The potential of an ultrapermeable benzotriptycene-based polymer of intrinsic microporosity (PIM-TMN-Trip) for the upgrading of biogas is investigated. Permeation experiments were performed using an in-house bespoke permeation unit for pure gases and gas mixtures, and included tests with model mixtures as well as real biogas from a sewage treatment plant, under dry and humid conditions. Permeability and CO2/CH4 selectivity for either pure gases or for real biogas were high and lie close to or on the recently defined 2019 Robeson upper bound based on ideal permselectivities. In addition, a remarkable increase in CO2/CH4 selectivity was observed after two weeks of continuous exposure to CO2 due to a significant decrease of CH4 permeability. The constant CO2 permeability and increased selectivity upon ageing suggest that ageing in the presence of CO2 causes a rearrangement, rather than a reduction of the fractional free volume. The mixed gas permeability experiments were performed with high stage-cut in order to mimic a real separation process, and the results confirmed the potential of PIM-TMN-Trip membranes for biogas upgrading.

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Flue gas purification with membranes based on the polymer of intrinsic microporosity PIM-TMN-Trip

Cited by 16 publications

References 36 publications

Penetrant-induced plasticization in microporous polymer membranes

Penetrant-induced plasticization in microporous polymer membranes

Ultrapermeable Polymers of Intrinsic Microporosity Containing Spirocyclic Units with Fused Triptycenes

Upgrading of raw biogas using membranes based on the ultrapermeable polymer of intrinsic microporosity PIM-TMN-Trip

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