ROLE OF SPARGER DESIGN ON GAS DISPERSION IN MECHANICALLY AGITATED GAS-LIQUID CONTACTORS

被引：24

作者：

REWATKAR, VB ^{[1
]}

JOSHI, JB ^{[1
]}

机构：

[1] UNIV BOMBAY,DEPT CHEM TECHNOL,BOMBAY 400019,INDIA

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1993年 / 71卷 / 02期

关键词：

STIRRED VESSEL; GAS LIQUID REACTORS; GAS DISPERSION; GAS RECIRCULATION; REACTORS;

D O I：

10.1002/cjce.5450710215

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Critical impeller speeds for gas dispersion and gas recirculation were measured in 0.57, 1.0 and 1.5 m i.d. vessels, using visual observations, measurements of power consumption and liquid-phase mixing time. A pitched blade down-flow turbine impeller (PTD) was used. Design parameters of the PTD impeller such as diameter (0.22T to 0.5T), blade width (0.25D to 0.4D) and blade thickness (2.8, 4.3 and 6.4 mm) were studied. The effect of sparger type and geometry on N(CD) has been investigated. For this purpose, pipe, ring, conical and concentric ring spargers were employed. Design details of the ring sparger such as ring diameter, number of holes and hole size were also studied in detail. The sparger location with respect to the impeller was found to be the most important parameter. Correlations have been developed for N(CD) and N(CR).

引用

页码：278 / 291

页数：14

共 18 条

[1] OPERATING ZONE AND SCALE UP OF MECHANICALLY STIRRED GAS-LIQUID REACTORS [J].