Facilitated transport in ion-exchange membranes

LeBlanc, Oliver H.; Ward, William J.; Matson, Stephen L.; Kimura, Shiro

doi:10.1016/s0376-7388(00)82175-4

Cited by 198 publications

(87 citation statements)

References 8 publications

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“…Liquid membranes, however, possess high species permeability and high selectivity. Very high values of the latter can be obtained if facilitated transport with suitable carrier species can be implemented (Bhave and Sirkar, 1986;Hughes et al, 1986;Jain and Schultz, 1982;Kimura et al, 1979;Kimura and Walmet, 1980;Leblanc et al, 1980;Matson et al, 1977;Meldon et al, 1986;Otto and Quinn, 1971;Smith and Quinn, 1980;Suchdeo and Schultz, 1974;Ward and Robb, 1967;Way et al, 1982).…”

Section: Introductionmentioning

confidence: 99%

A new liquid membrane technique for gas separation

1988

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A new liquid membrane separation technique for gas mixtures has been developed: feed and sweep gases flow through the lumen of two different sets of hydrophobic microporous hollow fibers while a liquid on the shell side acts as the membrane. This membrane is identified as the contained liquid membrane (CLM). Major shortcomings of immobilized liquid membrane techniques are eliminated. The novel separation device is identified as the hollow fiber contained liquid membrane (HFCLM) permeator. Experimental studies are made with different C0,-N, feed mixtures and a pure helium sweep stream, with special emphasis on model landfill gas purification. Either pure water or an aqueous solution of K, CO, is used as membrane. The effects of several variables on the performance of the HFCLM permeator have been studied. A three-component permeation model, incorporating axial pressure drop, is developed for binary mixture separation in a HFCLM permeator having a sweep gas stream. The experimental data show good agreement with the theoretical predictions.

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Section: Introductionmentioning

confidence: 99%

A new liquid membrane technique for gas separation

1988

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“…As olefinic compounds react reversibly with silver ions, cation-exchange membrane, i.e., ion exchanged with silver ion, is expected to separate olefinic compound from alkane compound. Similarly, CO 2 is also separable by the cation-exchange membrane, i.e., ion exchange with ethylenediamine [203]. For the purpose of gas separation, anion-exchange membrane derived from poly (2,6-dimethyl-p-phenelyne oxide) shows the oxygen-enriching properties [204].…”

Section: Ion Exchange Membranes In Other Applicationsmentioning

confidence: 99%

Ion Exchange Membranes: Preparation, Properties, and Applications

Kittur

Kulkarni²

2012

Ion Exchange Technology I

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Membrane science is a relatively new area of applied chemistry and chemical engineering and plays a vital role in the field of alternative energy and separation applications. The field of membrane science is therefore an emerging area with enormous industrial and public health significance. Today, various kinds of separation membranes have been studied and utilized industrially in different processes including reverse osmosis, nanofiltration, ultrafiltration, microfiltration, electrodialysis, and pervaporation. Technical feasibility of all these processes largely depends on membrane and its properties. Among the separation membranes, ion exchange membranes are one of the advanced separation membranes. Therefore, this chapter addresses on different types of ion exchange membranes with reference to their preparation, properties, as well as their industrial applications. Although ion exchange membranes are broadly classified into homogeneous and heterogeneous membranes, this chapter also covers other types of ion exchange membranes such as amphoteric, mosaic, bipolar, interpolymer, and graft and block copolymer membranes. At the end, prospectives and conclusions on the ion exchange membranes have also been highlighted. The relevant literature was collected from different sources including Google sites, books, reviews, and research articles.

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“…Although these membranes show high performance for the separation, the carrier can be washed out of the membrane, which limits membrane lifetime. This situation changed in the 1980's, due to LeBlanc's work, which introduced the utilization of carrier fixed membranes for olefin/paraffin separation (LeBlanc, 1980).…”

Section: ) Propane/propylene Separationmentioning

confidence: 99%

Recent achievements in facilitated transport membranes for separation processes

Ferraz

Duarte

Luccio

et al. 2007

Braz. J. Chem. Eng.

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-Membrane separation processes have been extensively used for some important industrial separations, substituting traditional methods. However, some applications require the development of new membranes. In this work, we discuss recent progress achieved in this field, focusing on gas and liquid separation using facilitated transport membranes. The advantages of using a carrier species either in a liquid membrane or fixed in a polymer matrix to enhance both the flux and the selectivity of the transport are summarized. The most probable transport mechanisms in these membranes are presented and the improvements needed to spread this technology are also discussed. As examples, we discuss our very successful experiences in air fractioning, olefin/paraffin separation and sugar recovery using liquid and fixed carrier membranes.

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Facilitated transport in ion-exchange membranes

Cited by 198 publications

References 8 publications

A new liquid membrane technique for gas separation

A new liquid membrane technique for gas separation

Ion Exchange Membranes: Preparation, Properties, and Applications

Recent achievements in facilitated transport membranes for separation processes

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