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Titolo:
Influence of inclination on gas-sparged cross-flow ultratiltration throughan inorganic tubular membrane
Autore:
Cheng, TW;
Indirizzi:
Tamkang Univ, Dept Chem Engn, Taipei 251, Taiwan Tamkang Univ Taipei Taiwan 251 Univ, Dept Chem Engn, Taipei 251, Taiwan
Titolo Testata:
JOURNAL OF MEMBRANE SCIENCE
fascicolo: 1, volume: 196, anno: 2002,
pagine: 103 - 110
SICI:
0376-7388(20020215)196:1<103:IOIOGC>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
SLUG FLOW; ULTRAFILTRATION FLUX; INCLINED TUBES; MASS-TRANSFER; 2-PHASE FLOW; FILTRATION; MODULE; PERFORMANCE; BUBBLES; ANGLE;
Keywords:
ultrafiltration; inorganic membrane; concentration polarization; membrane inclination; flux enhancement;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Cheng, TW Tamkang Univ, Dept Chem Engn, Taipei 251, Taiwan Tamkang Univ Taipei Taiwan 251 t Chem Engn, Taipei 251, Taiwan
Citazione:
T.W. Cheng, "Influence of inclination on gas-sparged cross-flow ultratiltration throughan inorganic tubular membrane", J MEMBR SCI, 196(1), 2002, pp. 103-110

Abstract

The effect of membrane inclination on the flux of single-phase or gas-liquid two-phase ultrafiltration in a tubular membrane has been investigated. Experimental result shows that membrane inclination has a significant enhancement on the flux of two-phase ultrafiltration operated at slug flow pattern. As the angle of inclination from the horizontal increases, the flux increases, reaches a maximum, and then decreases. The flux may be enhanced morethan 1.5 when the membrane is inclined from 0 to 50 degrees. The flux enhancement due to membrane inclination increases with increasing the gas velocity, the feed concentration, and the transmembrane pressure, while it decreases with increasing the liquid velocity. The optimal inclination angle of the membrane in a slug-flow ultrafiltration is close to 50 degrees. An equation for determining the optimal inclination angle was also proposed in this work. (C) 2002 Elsevier Science B.V. All rights reserved.

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Documento generato il 01/04/20 alle ore 20:57:54