Plasticization mechanisms and effects of thermal annealing of Matrimid hollow fiber membranes for CO2 removal

Guo, Dong; Li, Hongyu; Chen, Vicki

doi:10.1016/j.memsci.2010.11.064

Cited by 95 publications

(42 citation statements)

References 52 publications

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“…For most of glassy polymers, the CO 2 permeability decreases with increasing the feed pressure. This trend ends at a certain value of pressure, plasticization pressure, and beyond that, the CO 2 permeability starts to increase by increasing the feed pressure (Dong et al, 2011). As the PEG content increased, the segmental mobility of polymer chains and the free volume increased and consequently the permeability enhanced.…”

Section: Effect Of Feed Pressure On Gas Separation Performance Of Memmentioning

confidence: 94%

Preparation and characterization of Matrimid® 5218 based binary and ternary mixed matrix membranes for CO2 separation

Loloei

Omidkhah

Moghadassi

et al. 2015

International Journal of Greenhouse Gas Control

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Section: Effect Of Feed Pressure On Gas Separation Performance Of Memmentioning

confidence: 94%

Preparation and characterization of Matrimid® 5218 based binary and ternary mixed matrix membranes for CO2 separation

Loloei

Omidkhah

Moghadassi

et al. 2015

International Journal of Greenhouse Gas Control

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“…Plasticization by CO 2 normally occurs when the partial pressure of CO 2 reaches the plasticization pressure as shown in Fig. 22 (Dong et al, 2011). Similar to physical ageing, plasticization is thickness dependent (Huang and Paul, 2007;Jordan et al, 1990;Pfromm and Koros, 1995;Punsalan and Koros, 2005;Krause et al, 2001) and becomes more pronounced as the thickness of the membrane decreases.…”

Section: Membrane Materials Selectionmentioning

confidence: 93%

Emerging CO2 capture systems

Abanades

Arias

Lyngfelt

et al. 2015

International Journal of Greenhouse Gas Control

386

267

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a b s t r a c tIn 2005, the IPCC SRCCS recognized the large potential for developing and scaling up a wide range of emerging CO 2 capture technologies that promised to deliver lower energy penalties and cost. These included new energy conversion technologies such as chemical looping and novel capture systems based on the use of solid sorbents or membrane-based separation systems. In the last 10 years, a substantial body of scientific and technical literature on these topics has been produced from a large number of R&D projects worldwide, trying to demonstrate these concepts at increasing pilot scales, test and model the performance of key components at bench scale, investigate and develop improved functional materials, optimize the full process schemes with a view to a wide range of industrial applications, and to carry out more rigorous cost studies etc. This paper presents a general and critical review of the state of the art of these emerging CO 2 capture technologies paying special attention to specific process routes that have undergone a substantial increase in technical readiness level toward the large scales required by any CO 2 capture system.

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“…Therefore, the physical and chemical properties of glassy polymers are particularly influenced by thermal history [16][17][18][19][20][21][22][23][24][25] and physical aging [26][27][28][29][30][31][32], which can substantially change the material response to the external stresses and, what is of particular importance in the present discussion, can definitely affect its permeation properties.…”

Section: Introductionmentioning

confidence: 93%

“…Other works outline that different thermal treatments of the polymer matrix can influence significantly the transport rate of small size gases: the higher is the temperature of the pretreatment the lower is the final permeability, independently of the penetrant nature. The explanation proposed for this behavior is the reduction of the free volume available for the penetrant diffusion in the polymer matrix [17,[19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Effects of Thermal Treatment and Physical Aging on the Gas Transport Properties in Matrimid^®

Ansaloni

Minelli

Baschetti

et al. 2014

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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-Carbon dioxide and methane transport in a commercial polyimide, Matrimid 5218 Ò , has been characterized in order to evaluate the effect of membrane thermal treatment and physical aging on its potentialities for CO 2 /CH 4 separation. In particular, CO 2 and CH 4 permeabilities and diffusion coefficients were measured at three different temperatures (35, 45 and 55°C) in films pretreated at 50, 100, 150 and 200°C, respectively. The performances of each sample were examined for a period of more than 3 000 hours. Permeability and diffusivity values for both penetrants showed a marked decrease with increasing the pretreatment temperature up to 150°C and remained, then, substantially unchanged for specimens pretreated at the highest temperature. Interestingly, the samples characterized by the higher flux after film formation also showed a faster aging phenomenon, leading to a 25% decrease of CO 2 permeability in the period inspected. Conversely, the samples pretreated at temperatures of 150°C, or higher, displayed very stable transport properties for the entire duration of the monitoring campaign. At the end of the aging period considered, the differences among samples were definitely reduced, suggesting that the initial behaviors are related to different polymer structures induced by pretreatment, which slowly evolve in time towards more similar and more stable configurations. Such aging rearrangements affect both CO 2 and CH 4 permeability in a similar way, so that no significant changes were observed for selectivity, which showed only a slight increment by increasing the temperature of the thermal treatment or the duration of the aging period. 150°C ont affiche´des proprie´te´s de transport tre`s stables pendant toute la dure´e des mesures. Par conse´quent, a`la fin de l'e´tude, les diffe´rences entre les e´chantillons ont e´te´nettement re´duites, ce qui sugge`re que la structure initiale pourrait eˆtre due a`des structures polyme´riques diffe´rentes, induites par un pre´traitement, qui e´voluent lentement avec le temps vers des configurations plus semblables et plus stables. Il est important de remarquer qu'un tel re´arrangement a affected e la meˆme manie`re la perme´abilite´au CO 2 et celle au CH 4 . Nous n'observons donc pas de changements significatifs en ce qui concerne la se´lectivite´qui a montre´seulement une le´ge`re hausse lorsque l'on augmente la tempe´rature du traitement thermique ou le temps de vieillissement.

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Plasticization mechanisms and effects of thermal annealing of Matrimid hollow fiber membranes for CO2 removal

Cited by 95 publications

References 52 publications

Preparation and characterization of Matrimid® 5218 based binary and ternary mixed matrix membranes for CO2 separation

Preparation and characterization of Matrimid® 5218 based binary and ternary mixed matrix membranes for CO2 separation

Emerging CO2 capture systems

Effects of Thermal Treatment and Physical Aging on the Gas Transport Properties in Matrimid^®

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Plasticization mechanisms and effects of thermal annealing of Matrimid hollow fiber membranes for CO2 removal

Cited by 95 publications

References 52 publications

Preparation and characterization of Matrimid® 5218 based binary and ternary mixed matrix membranes for CO2 separation

Preparation and characterization of Matrimid® 5218 based binary and ternary mixed matrix membranes for CO2 separation

Emerging CO2 capture systems

Effects of Thermal Treatment and Physical Aging on the Gas Transport Properties in Matrimid®

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Product

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Effects of Thermal Treatment and Physical Aging on the Gas Transport Properties in Matrimid^®