A modified hollow fiber contained liquid membrane technique for gas separation at high pressures

Theoharis Papadopoulos; Kalalesh K. Sirkar

doi:10.1016/0376-7388(93)E0167-I

A modified hollow fiber contained liquid membrane technique for gas separation at high pressures

Theoharis Papadopoulos, Kalalesh K. Sirkar

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The hollow fiber contained liquid membrane (HFCLM) permeation technique has been modified by using microporous fibers having a thin nonporous silicone coating to handle higher gas pressures. Separation of various CO₂-N₂ mixtures have been studied over a feed pressure range of 50-200 psig. Pure water and aqueous 20% diethanolamine (DEA) were used as a liquid membranes. Two modes of operation, conventional polymeric membrane and sweep gas mode, were investigated. Permeator conditions studied include liquid membrane pressure higher and lower than the feed pressure. The aqueos 20% DEA resulted in significantly higher overall CO₂ permeabilities and selectivity. A mathematical model was developed which included the pressure drop inside the fiber bores. Numerical simulations of the model describe the experimental results well.

Original language	English (US)
Pages (from-to)	163-181
Number of pages	19
Journal	Journal of Membrane Science
Volume	94
Issue number	1
DOIs	https://doi.org/10.1016/0376-7388(93)E0167-I
State	Published - Sep 19 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Biochemistry
General Materials Science
Physical and Theoretical Chemistry
Filtration and Separation

Keywords

contained liquid membrane
gas separations
high pressure
hollow fiber

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10.1016/0376-7388(93)E0167-I

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abstract = "The hollow fiber contained liquid membrane (HFCLM) permeation technique has been modified by using microporous fibers having a thin nonporous silicone coating to handle higher gas pressures. Separation of various CO2-N2 mixtures have been studied over a feed pressure range of 50-200 psig. Pure water and aqueous 20% diethanolamine (DEA) were used as a liquid membranes. Two modes of operation, conventional polymeric membrane and sweep gas mode, were investigated. Permeator conditions studied include liquid membrane pressure higher and lower than the feed pressure. The aqueos 20% DEA resulted in significantly higher overall CO2 permeabilities and selectivity. A mathematical model was developed which included the pressure drop inside the fiber bores. Numerical simulations of the model describe the experimental results well.",

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AU - Sirkar, Kalalesh K.

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AB - The hollow fiber contained liquid membrane (HFCLM) permeation technique has been modified by using microporous fibers having a thin nonporous silicone coating to handle higher gas pressures. Separation of various CO2-N2 mixtures have been studied over a feed pressure range of 50-200 psig. Pure water and aqueous 20% diethanolamine (DEA) were used as a liquid membranes. Two modes of operation, conventional polymeric membrane and sweep gas mode, were investigated. Permeator conditions studied include liquid membrane pressure higher and lower than the feed pressure. The aqueos 20% DEA resulted in significantly higher overall CO2 permeabilities and selectivity. A mathematical model was developed which included the pressure drop inside the fiber bores. Numerical simulations of the model describe the experimental results well.

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KW - high pressure

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A modified hollow fiber contained liquid membrane technique for gas separation at high pressures

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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