A Two-dimensional analysis of membrane thickness in a hollow-fiber-contained liquid membrane permeator

Majumdar, S.; Guha, A.; Lee, Yongtaek; Sirkar, Kamalesh K.

doi:10.1016/s0376-7388(00)85102-9

Cited by 24 publications

(24 citation statements)

References 11 publications

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“…Even when the driving force increases sharply with a rise in temperature, the flux does not increase in the fashion it normally does in DCMD. A way to estimate the effective air gap thickness is available in Majumdar et al [21] who carried out a two-dimensional analysis of the effective membrane thickness in dual hollow fiber modules used for contained liquid membrane separations. Here instead of the contained liquid membrane we have an air gap acting as the membrane through which water vapor diffusion is taking place.…”

Section: Resultsmentioning

confidence: 99%

“…Here instead of the contained liquid membrane we have an air gap acting as the membrane through which water vapor diffusion is taking place. A number of different configurations of the contiguous hollow fibers in the two-fiber set system is possible [21]. If the two sets are not well mixed the effective air gap thickness will go up; correspondingly the water vapor flux will come down.…”

Section: Resultsmentioning

confidence: 99%

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Desalination by air gap membrane distillation using a two hollow-fiber-set membrane module

Singh

Sirkar

2012

Journal of Membrane Science

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Desalination by air gap membrane distillation using a two hollow-fiber-set membrane module

Singh

Sirkar

2012

Journal of Membrane Science

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“…In the fabrication of a highly packed HFCLM module, the mixing of two fiber sets was important to achieve a high module performance, since there was less space for movement by fibers swollen by the organic phase compared to that in a module with lower packing density. After a 7-d cure, the permeators were characterized for membrane thickness by gas permeation studies (Majumdar et al, 1989).…”

Section: Fabrication Of Hfclm Permeatorsmentioning

confidence: 99%

Heavy metal removal and recovery by contained liquid membrane permeator

et al. 1994

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“…In such idealized fiber configurations, the EMT is a function of the fiber outside diameter (O.D.) and the fiber packing density (ε) and can be estimated from a graph which summarizes the numerical calculation results (9). This EMT is somewhat smaller than the fiber O.D.…”

Section: Considerations On Transport Ratesmentioning

confidence: 99%

Hollow Fiber-Contained Liquid Membranes for Separations: An Overview

Sirkar

1996

ACS Symposium Series

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The basic technique of hollow fiber-contained liquid membrane (HFCLM) permeation-based separation of gas mixtures and liquid solutions is reviewed and existing applications in organic acid/antibiotic recovery from fermentation broths, facilitated, countertransport and co-transport of heavy metals, facilitated CO 2 -N 2 (CH 4 ) separation, and facilitated SO 2 -NO x separation from flue gas are surveyed. New applications of the HFCLM technique include separations of organic mixtures (including isomeric) through polar liquid membranes (including cyclodextrin-containing aqueous solutions), highly selective pervaporation of organics from water, and, for gas separation, a modified technique that can treat feed at 175-200 psig. The utility of HFCLM as a reaction medium as well as the separator in separation-reaction-separation and separation-reaction processes will also be illustrated.The utility of a thin layer of liquid as a selective membrane for separations has been explored extensively over the last thirty years. Three techniques have been used traditionally to exploit a thin liquid layer as a membrane: emulsion liquid membranes (ELM) for separation of liquid solutions (/); supported liquid membranes (SLM) in the pores of a porous/microporous support membrane for the separation of liquid feeds; and immobilized liquid membranes (ILM) in the pores of a porous/microporous support membrane for separating a gas mixture. SLM and ILM are different names for the same liquid membrane technique and have been briefly reviewed by Majumdar et al. (2) and Boyadzhiev and Lazarova (3).A more recent liquid membrane technique is the hollow fiber-contained liquid membrane technique which is sometimes abbreviated as the CLM technique or the HFCLM technique. This technique has overcome most of the shortcomings of the SLM/ILM techniques. First introduced during 1986-1988 (4,5), the CLM-based permeation technique is undergoing evolution. This paper will provide a brief

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A Two-dimensional analysis of membrane thickness in a hollow-fiber-contained liquid membrane permeator

Cited by 24 publications

References 11 publications

Desalination by air gap membrane distillation using a two hollow-fiber-set membrane module

Desalination by air gap membrane distillation using a two hollow-fiber-set membrane module

Heavy metal removal and recovery by contained liquid membrane permeator

Hollow Fiber-Contained Liquid Membranes for Separations: An Overview

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