Mass transport mechanisms within pervaporation membranes

Song, Yimeng; Pan, Fusheng; Liu, Ying; Quan, Kaidong; Jiang, Zhongyi

doi:10.1007/s11705-018-1780-1

Cited by 33 publications

(14 citation statements)

References 147 publications

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“…The selective molecule penetration behavior in the PPy membrane can be considered as a pervaporation process and explained by the solution-diffusion principle. [60,61] which includes the dissolution of molecules into the membrane surface on the feed liquid side, the diffusion process through the membrane matrix, and desorption from the membrane surface to achieve vaporization. As the third step of desorption is much faster than the previous two steps, the dissolution and diffusion behavior of the molecules are therefore, the determining factors of the entire process.…”

Section: Doi: 101002/adma202004401mentioning

confidence: 99%

Polymeric Membranes with Selective Solution‐Diffusion for Intercepting Volatile Organic Compounds during Solar‐Driven Water Remediation

et al. 2020

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Section: Doi: 101002/adma202004401mentioning

confidence: 99%

Polymeric Membranes with Selective Solution‐Diffusion for Intercepting Volatile Organic Compounds during Solar‐Driven Water Remediation

et al. 2020

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“…The separation factor β is given by β = ((C 1 /C 2 ) permeate )/(C 1 /C 2 ) feed ), the ratios of the two components in the permeate and the feed streams. The permeability can be defined as P = J*l/(p A,G F − p A,G P ), where the denominator terms are the partial vapour pressure terms and l is the thickness of the selective layer, whereas selectivity α is the efficiency of separation of the two components and is defined as the ratio of the permeabilities of the two components being separated [4,16,80].…”

Section: Transport Mechanismmentioning

confidence: 99%

A Review on Mixed Matrix Membranes for Solvent Dehydration and Recovery Process

2021

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Solvent separation and dehydration are important operations for industries and laboratories. Processes such as distillation and extraction are not always effective and are energy-consuming. An alternate approach is offered by pervaporation, based on the solution-diffusion transport mechanism. Polymer-based membranes such as those made of Polydimethylsiloxane (PDMS) have offered good pervaporation performance. Attempts have been made to improve their performance by incorporating inorganic fillers into the PDMS matrix, in which metal-organic frameworks (MOFs) have proven to be the most efficient. Among the MOFs, Zeolitic imidazolate framework (ZIF) based membranes have shown an excellent performance, with high values for flux and separation factors. Various studies have been conducted, employing ZIF-PDMS membranes for pervaporation separation of mixtures such as aqueous-alcoholic solutions. This paper presents an extensive review of the pervaporation performance of ZIF-based mixed matrix membranes (MMMs), novel synthesis methods, filler modifications, factors affecting membrane performance as well as studies based on polymers other than PDMS for the membrane matrix. Some suggestions for future studies have also been provided, such as the use of biopolymers and self-healing membranes.

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“…The mass transport mechanism through the pervaporation membrane is based on a solution-diffusion model . The key parameters for evaluating the pervaporation membrane are permeation flux and separation factor, which are expressed from eqs and , respectively. where M is the weight of permeate product, A is the effective area in membrane module, and t is the permeation time; y and x are the weight percentages of each component in the permeation and feed, respectively.…”

Section: Principle Of Pervaporation Separation and Fermentation–perva...mentioning

confidence: 99%

“…based on a solution-diffusion model. 30 The key parameters for evaluating the pervaporation membrane are permeation flux and separation factor, which are expressed from eqs 1 and 2, respectively.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Separation Membranes and Their Fermentation Coupled Processes for Biobutanol Recovery

2020

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In recent decades, pervaporation membrane separation coupled with fermentation is recognized as a promising process in biofuel production. This review presents the latest progress in membrane materials applied for the biobutanol separation from dilute aqueous solution or fermentation broth. It also summarizes various membrane-based separation processes for in situ recovering biobutanol during the fermentation. Opportunities and challenges in future development of pervaporation organophilic membrane materials and fermentation coupled processes for biobutanol production are outlook.

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Mass transport mechanisms within pervaporation membranes

Cited by 33 publications

References 147 publications

Polymeric Membranes with Selective Solution‐Diffusion for Intercepting Volatile Organic Compounds during Solar‐Driven Water Remediation

Polymeric Membranes with Selective Solution‐Diffusion for Intercepting Volatile Organic Compounds during Solar‐Driven Water Remediation

A Review on Mixed Matrix Membranes for Solvent Dehydration and Recovery Process

Recent Progress in Separation Membranes and Their Fermentation Coupled Processes for Biobutanol Recovery

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