THE EFFECTS OF IMPELLER SPEED AND HOLDUP ON MEAN DROP SIZE IN A MIXER SETTLER WITH SPIRAL-TYPE IMPELLER

被引：25

作者：

Khakpay, Amir ^{[1
]}

Abolghasemi, Hossein ^{[1
]}

机构：

[1] Univ Tehran, Dept Chem Engn, Tehran, Iran

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2010年 / 88卷 / 03期

关键词：

liquid-liquid dispersion; mixer settler; drop size; impeller speed; holdup; correlating; LIQUID-LIQUID DISPERSIONS; TURBULENT-FLOW; MASS-TRANSFER; DISTRIBUTIONS; SURFACTANT; EMULSION; COALESCENCE; EXTRACTION; BREAKAGE; MODEL;

D O I：

10.1002/cjce.20287

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An experimental investigation has been carried out in order to analyse the drop size distributions of liquid-liquid dispersion in a single stage mixer settler extractor In this paper, the effects of the impeller speed and the holdup on mean drops size, D(32), have been investigated D(32) was decreased with an increase in the impeller speed Furthermore, D(32) was increased with an increase in the holdup In addition, a new and modified correlation was established based on these results The average absolute relative deviation is 3 36%.

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页码：329 / 334

页数：6

相关论文

共 27 条

[1] Predicting sizes of toluene-diluted heavy oil emulsions in turbulent flow.: Part 1 -: Application of two adsorption kinetic models for σE in two size predictive models [J].

Angle, Chandra W. ;

Dabros, Tadeusz ;

Hamza, Hassan A. .

CHEMICAL ENGINEERING SCIENCE, 2006, 61 (22) :7309-7324

[2] Behaviour of turbulent dispersions in a stirred single-stage cell [J].

Balmelli, M ;

Steiner, L ;

Hartland, S .

CHEMICAL ENGINEERING SCIENCE, 2000, 55 (09) :1653-1660

[3] DROP BREAKUP IN TURBULENT STIRRED-TANK CONTACTORS .1. EFFECT OF DISPERSED-PHASE VISCOSITY [J].

CALABRESE, RV ;

CHANG, TPK ;

DANG, PT .

AICHE JOURNAL, 1986, 32 (04) :657-666

[4] Effect of drop size distribution on mass transfer analysis of the extraction of nickel(II) by emulsion liquid membrane [J].

Chakraborty, M ;

Bhattacharya, C ;

Datta, S .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2003, 224 (1-3) :65-74

[5] A population balance model for disperse systems: Drop size distribution in emulsion [J].

Chen, Z ;

Pruss, J ;

Warnecke, HJ .

CHEMICAL ENGINEERING SCIENCE, 1998, 53 (05) :1059-1066

[6] DESCRIPTION OF INTERACTION PROCESSES IN AGITATED LIQUID-LIQUID DISPERSIONS [J].

COULALOGLOU, CA ;

TAVLARIDES, LL .

CHEMICAL ENGINEERING SCIENCE, 1977, 32 (11) :1289-1297

[7]

DEHBI A, 2001, EUR AER C

[8] Experimental study of drop size distributions at high phase ratio in liquid-liquid dispersions [J].

Desnoyer, C ;

Masbernat, O ;

Gourdon, C .

CHEMICAL ENGINEERING SCIENCE, 2003, 58 (07) :1353-1363

[9] The effect of pH on experimental and simulation results of transient drop size distributions in stirred liquid-liquid dispersions [J].

Gäbler, A ;

Wegener, M ;

Paschedag, AR ;

Kraume, M .

CHEMICAL ENGINEERING SCIENCE, 2006, 61 (09) :3018-3024

[10] A CASCADE MODEL FOR NEUTRALLY BUOYANT DISPERSED 2-PHASE HOMOGENEOUS TURBULENCE .2. NUMERICAL-SOLUTION AND RESULTS [J].

JAIRAZBHOY, V ;

TAVLARIDES, LL .

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 1995, 21 (03) :485-500