Determination of the interfacial area and mass transfer coefficients in the Taylor gas-liquid flow in a microchannel

被引：70

作者：

Sobieszuk, Pawel ^{[1
]}

Pohorecki, Ryszard ^{[1
]}

Cyganski, Pawel ^{[1
]}

Grzelka, Jacek ^{[1
]}

机构：

[1] Warsaw Univ Technol, Fac Chem & Proc Engn, PL-00645 Warsaw, Poland

来源：

CHEMICAL ENGINEERING SCIENCE | 2011年 / 66卷 / 23期

关键词：

Absorption; Mass transfer; Microstructure; Multiphase flow; Taylor flow; Interfacial area; 2-PHASE FLOW; BUBBLES; CAPILLARIES; HYDRODYNAMICS; MOTION; TUBES;

D O I：

10.1016/j.ces.2011.08.029

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The interfacial area in the Taylor (slug) gas-liquid flow in a microchannel was measured by the Danckwerts' (chemical) method, using CO(2) absorption from the CO(2)/N(2) mixture into KHCO(3)/K(2)CO(3) buffer solutions, containing NaOCI as a catalyst. The rate of absorption was determined and the Danckwerts' plots were constructed. Reasonable agreement with the geometrical area measured photographically was obtained. This fact allowed to determine for the first time the mass transfer coefficients separately for liquid film and liquid caps. A correlation for the calculation of mass transfer coefficients has been proposed. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：6048 / 6056

页数：9

共 19 条

[1] Quick deposition of a fluid on the wall of a tube
Aussillous, P
Quéré, D
[J]. PHYSICS OF FLUIDS, 2000, 12 (10) : 2367 - 2371
[2] BARRET PVL, 1966, THESIS U CAMBRIDGE
[3] The role of gas bubbles and liquid slug lengths on mass transport in the Taylor flow through capillaries
Bercic, G
Pintar, A
[J]. CHEMICAL ENGINEERING SCIENCE, 1997, 52 (21-22) : 3709 - 3719
[4] THE MOTION OF LONG BUBBLES IN TUBES
BRETHERTON, FP
[J]. JOURNAL OF FLUID MECHANICS, 1961, 10 (02) : 166 - 188
[5] Danckwerts P. V., 1966, CHEM ENG, V10, pCE244
[6] Danckwerts P.V., 1970, GAS LIQUID REACTIONS
[7] Performance of confined plunging liquid jet bubble column as a gas-liquid reactor
Evans, GM
Bin, AK
Machniewskj, PM
[J]. CHEMICAL ENGINEERING SCIENCE, 2001, 56 (03) : 1151 - 1157
[8] Hydrodynamics of Taylor flow in vertical capillaries: Flow regimes, bubble rise velocity, liquid slug length, and pressure drop
Liu, H
Vandu, CO
Krishna, R
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (14) : 4884 - 4897
[9] KINETICS OF REACTION BETWEEN CARBON-DIOXIDE AND HYDROXYL IONS IN AQUEOUS-ELECTROLYTE SOLUTIONS
POHORECKI, R
MONIUK, W
[J]. CHEMICAL ENGINEERING SCIENCE, 1988, 43 (07) : 1677 - 1684
[10] ABSORPTION OF CO2 IN CARBONATE-BICARBONATE BUFFER SOLUTIONS CONTAINING HYPOCHLORITE CATALYST ON A SIEVE PLATE
POHORECKI, R
[J]. CHEMICAL ENGINEERING SCIENCE, 1968, 23 (12) : 1447 - +

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