Separation of ethylene from ethane by a flowing liquid membrane using silver nitrate as a carrier

A new type of liquid membrane, designated as a “flowing liquid membrane” is proposed, in which a liquid membrane solution flows in a thin channel between two microporous membranes. Separation of ethylene from ethane by flowing liquid membrane modules was carried out, in which silver nitrate was used...

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Bibliographic Details
Published in:Journal of membrane science 1989-07, Vol.45 (1), p.115-136
Main Authors: Teramoto, Masaaki, Matsuyama, Hideto, Yamashiro, Takumi, Okamoto, Sueaki
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Membranes
Porous materials
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Summary:A new type of liquid membrane, designated as a “flowing liquid membrane” is proposed, in which a liquid membrane solution flows in a thin channel between two microporous membranes. Separation of ethylene from ethane by flowing liquid membrane modules was carried out, in which silver nitrate was used as a carrier of ethylene. It was found that, compared with the usual immobilized liquid membranes, the flowing liquid membrane has higher permeability and stability. The mechanism of the facilitated transport of ethylene through the flowing liquid membrane was elucidated, and this successfully predicted the permeation flux as well as the selectivity. The performance of the membrane module was satisfactorily explained by the proposed design equations.
ISSN:0376-7388
1873-3123
DOI:10.1016/S0376-7388(00)80849-2