Interstage backmixing in oscillatory flow in a baffled column

被引：6

作者：

Takriff, MS ^{[1
]}

Masyithah, Z ^{[1
]}

机构：

[1] Univ Kebangsaan Malaysia, Dept Chem & Proc Engn, Bangi 43600, Selangor Darul, Malaysia

来源：

CHEMICAL ENGINEERING COMMUNICATIONS | 2002年 / 189卷 / 12期

关键词：

backmixing; baffled column; oscillatory flow; mixing;

D O I：

10.1080/00986440214580

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An investigation on oscillatory flow in a baffled column was carried out to determine the effects of various operating parameters on interstage backmixing. Among parameters studied in this work were liquid flow rate, liquid viscosity, oscillation frequency, and oscillation amplitude. The results of this study indicated that the interstage backmixing had a maximum value under nonflow condition but decreased with liquid flow rate. Lower backmixing rate was observed in liquids with higher viscosity. Oscillation frequency and amplitude are the dominating factors that increase backmixing as these factors increase.

引用

页码：1640 / 1652

页数：13

共 13 条

[1] EXPERIMENTAL-OBSERVATIONS ON FLOW PATTERNS AND ENERGY-LOSSES FOR OSCILLATORY FLOW IN DUCTS CONTAINING SHARP EDGES [J].

BRUNOLD, CR ;

HUNNS, JCB ;

MACKLEY, MR ;

THOMPSON, JW .

CHEMICAL ENGINEERING SCIENCE, 1989, 44 (05) :1227-1244

[2] INTERSTAGE MIXING IN AN OLDSHUE-RUSHTON LIQUID-LIQUID EXTRACTION COLUMN [J].

GUTOFF, EB .

AICHE JOURNAL, 1965, 11 (04) :712-&

[3] ENHANCEMENT OF GAS-LIQUID MASS-TRANSFER USING OSCILLATORY FLOW IN A BAFFLED TUBE [J].

HEWGILL, MR ;

MACKLEY, MR ;

PANDIT, AB ;

PANNU, SS .

CHEMICAL ENGINEERING SCIENCE, 1993, 48 (04) :799-809

[4] EXPERIMENTAL AXIAL-DISPERSION FOR OSCILLATORY FLOW THROUGH A BAFFLED TUBE [J].

HOWES, T ;

MACKLEY, MR .

CHEMICAL ENGINEERING SCIENCE, 1990, 45 (05) :1349-1358

[5]

INGHAM J, 1995, T ICHEME A, V72, P492

[6] MULTISTAGE MIXER COLUMNS - CONTRIBUTION TO FLUID-DYNAMIC STUDIES [J].

LELLI, U ;

MAGELLI, F ;

PASQUALI, G .

CHEMICAL ENGINEERING SCIENCE, 1976, 31 (04) :253-256

[7]

MACKLEY MR, 1991, CHEM ENG RES DES, V69, P197

[8]

MACKLEY MR, 1987, CHEM ENG FEB

[9] BACKMIXING IN MULTISTAGE MIXER COLUMNS .2. ADDITIONAL RESULTS [J].

MAGELLI, F ;

PASQUALI, G ;

LELLI, U .

CHEMICAL ENGINEERING SCIENCE, 1982, 37 (02) :141-145

[10] On the discussion of the dimensionless groups governing oscillatory flow in a baffled tube [J].

Ni, X ;

Gough, P .

CHEMICAL ENGINEERING SCIENCE, 1997, 52 (18) :3209-3212

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