Hydrodynamic regimes of gas-liquid flow in a microreactor channel

被引：38

作者：

Pohorecki, R. ^{[1
]}

Sobieszuk, P. ^{[1
]}

Kula, K. ^{[1
]}

Moniuk, W. ^{[1
]}

Zielinski, A. ^{[1
]}

Cyganski, P. ^{[1
]}

Gawinski, P. ^{[1
]}

机构：

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

来源：

CHEMICAL ENGINEERING JOURNAL | 2008年 / 135卷 / SUPPL. 1期

关键词：

microreactor; interfacial area; gas absorption; chemical reaction;

D O I：

10.1016/j.cej.2007.07.039

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The hydrodynamic regimes of gas-liquid flow in a microreactor channel have. been investigated, using water and ethanol (liquids with different contact angle and surface tension values) and nitrogen as an inert gas. The microreactor was Y-shaped. Experiments were carried out to determine the character of gas and liquid flow ("regime map"). Four main flow types were observed: bubble, slug, slug/annular and annular, the slug regime occupying most of the region investigated. In the second part of the work a criterion for the effectiveness of the gas-liquid interfacial area has been proposed. This criterion determines the mass transfer activity of the interfacial area in the slug regime. Methods of estimation of the parameters necessary to apply the criterion have been outlined. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：S185 / S190

页数：6

共 17 条

[11] Investigation of two-phase flow pattern, void fraction and pressure drop in a microchannel [J].

Kawahara, A ;

Chung, PMY ;

Kawaji, M .

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2002, 28 (09) :1411-1435

[12] Effectiveness of interfacial area for mass transfer in two-phase flow in microreactors [J].

Pohorecki, Ryszard .

CHEMICAL ENGINEERING SCIENCE, 2007, 62 (22) :6495-6498

[13] ON THE MOTION OF BUBBLES IN CAPILLARY TUBES [J].

SCHWARTZ, LW ;

PRINCEN, HM ;

KISS, AD .

JOURNAL OF FLUID MECHANICS, 1986, 172 :259-275

[14] Two-phase flow in microchannels [J].

Serizawa, A ;

Feng, ZP ;

Kawara, Z .

EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2002, 26 (6-7) :703-714

[15] Mass transfer in gas-liquid flow in small-diameter tubes [J].

Tortopidis, P ;

Bontozoglou, V .

CHEMICAL ENGINEERING SCIENCE, 1997, 52 (14) :2231-2237

[16]

TRIPLETT KA, 1999, INT J MULTIPHASE FLO, V25, P194

[17]

VAILLANCOURT MP, 2004, P 5 INT C MULT FLOW

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