Hydrodynamics and ozone mass transfer in a tall bubble column

被引：48

作者：

Bin, AK ^{[1
]}

Duczmal, B ^{[1
]}

Machniewski, P ^{[1
]}

机构：

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

来源：

CHEMICAL ENGINEERING SCIENCE | 2001年 / 56卷 / 21-22期

关键词：

mass transfer; hydrodynamics; bubble column; ozonation; axial dispersion; data treatment;

D O I：

10.1016/S0009-2509(01)00213-5

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In the paper, major hydrodynamic parameters such as gas hold-up, phase velocities and axial dispersion as well as the ozone mass transfer coefficients in the liquid phase have been investigated in a tall bubble column for co-current, counter-current and semi-batch modes of operation. The major emphasis has been placed on evaluation of the dynamic characteristics of the combined system of experimental column and measuring sensors, which was applied in the subsequent determination of the axial dispersion and ozone mass transfer coefficients in the liquid phase. The ozone mass transfer coefficients have been estimated using two treatment methods of the recorded changes of ozone concentration in the liquid and gas phases with time during ozone absorption or stripping to an inert gas. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：6233 / 6240

页数：8

共 14 条

[1]

Bin A., 2000, P INT SPEC S IOA TOU, P99

[2] A comparative study of gas hold-up, bubble size, interfacial area and mass transfer coefficients in stirred gas-liquid reactors and bubble columns [J].

Bouaifi, M ;

Hebrard, G ;

Bastoul, D ;

Roustan, M .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2001, 40 (02) :97-111

[3] Mass transfer in gas-liquid contactors [J].

Gaddis, ES .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 1999, 38 (4-6) :503-510

[4] Survey of measurement techniques for gas-liquid mass transfer coefficient in bioreactors [J].

Gogate, PR ;

Pandit, AB .

BIOCHEMICAL ENGINEERING JOURNAL, 1999, 4 (01) :7-15

[5]

Hebrard G, 1996, CHEM ENG RES DES, V74, P406

[6] USE OF TRANSFER FUNCTIONS IN EVALUATING RESIDENCE TIME DISTRIBUTION CURVES [J].

HOPKINS, MJ ;

SHEPPARD, AJ ;

EISENKLA.P .

CHEMICAL ENGINEERING SCIENCE, 1969, 24 (07) :1131-&

[7] GAS HOLDUP AND AXIAL-DISPERSION OF GAS AND LIQUID IN BUBBLE-COLUMNS OF HOMOGENEOUS BUBBLE FLOW REGIME [J].

KAGO, T ;

SASAKI, Y ;

KONDO, T ;

MOROOKA, S ;

KATO, Y .

CHEMICAL ENGINEERING COMMUNICATIONS, 1989, 75 :23-38

[8] Gas holdup and mass transfer in bubble column reactors operated at elevated pressure [J].

Letzel, HM ;

Schouten, JC ;

Krishna, R ;

van den Bleek, CM .

CHEMICAL ENGINEERING SCIENCE, 1999, 54 (13-14) :2237-2246

[9]

MANGARTZ KH, 1977, THESIS TU MUNCHEN

[10]

MARINAS BJ, 1993, J AM WATER WORKS ASS, V85, P90

← 1 2 →