HYDRODYNAMIC STUDIES IN AN EXTERNAL LOOP AIRLIFT REACTOR CONTAINING AQUEOUS-ELECTROLYTE AND SUGAR SOLUTIONS

被引：27

作者：

SNAPE, JB

FIALOVA, M

ZAHRADNIK, J

THOMAS, NH

机构：

[1] CZECHOSLOVAK ACAD SCI, INST CHEM PROC FUNDAMENTALS, CS-11142 PRAGUE 1, CZECHOSLOVAKIA

[2] SWISS FED INST TECHNOL, TECH CHEM LAB, CH-8092 ZURICH, SWITZERLAND

来源：

CHEMICAL ENGINEERING SCIENCE | 1992年 / 47卷 / 13-14期

关键词：

AIRLIFT BIOREACTORS; GAS HOLDUP; LIQUID VELOCITY; HYDRODYNAMICS; SPARGER DESIGN; DISTRIBUTING PLATES;

D O I：

10.1016/0009-2509(92)85049-H

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The influence of liquid phase properties and sparger design on the gas holdup and liquid circulation velocity in a 65 litre external loop airlift reactor was investigated. Several salt solutions (NaCl, KCl, Na2SO4, MgSO4, CaCl2) were used in the range 0.01 to 0.2M as well as sucrose solutions in the range 0.5 to 8% (w/v) ie, concentrations typical of fermentation media. A number of gas distributing plates were used with from 5 to 221 orifices varying in diameter from 0.5 to 3.0 mm. At low airflow rates (2 to 6 m3/h) the distributing plate parameters had the greatest influence on gas holdup and liquid velocity, whereas at higher airflow rates (10 to 14 m3/h) the liquid phase properties became more important.

引用

页码：3387 / 3394

页数：8

共 15 条

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[2]

Chisti M. Y., 1989, AIRLIFT BIOREACTORS

[3]

ERICKSON LE, 1981, ADV BIOTECHNOL, V1, P553

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