INFLUENCE OF THE GAS-LIQUID SEPARATOR DESIGN ON HYDRODYNAMIC AND MASS-TRANSFER PERFORMANCE OF SPLIT-CHANNEL AIRLIFT REACTORS

被引：44

作者：

CHOI, KH ^{[1
]}

CHISTI, Y ^{[1
]}

MOOYOUNG, M ^{[1
]}

机构：

[1] UNIV WATERLOO,DEPT CHEM ENGN,WATERLOO,ON N2L 3G1,CANADA

来源：

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 1995年 / 62卷 / 04期

关键词：

AIRLIFT REACTOR; GAS-LIQUID SEPARATOR; HYDRODYNAMICS; OXYGEN TRANSFER; WASTE-WATER TREATMENT;

D O I：

10.1002/jctb.280620403

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Three geometric configurations of gas-liquid separators were used in split-channel airlift reactors (0.1 m(3) liquid volume; riser-to-downcomer cross-sectional area ratio = 0.7; aspect ratio = 3.6) to test the effect of geometry on hydrodynamic performance and oxygen transfer behaviour. For otherwise fixed conditions, the design of gas-liquid separators affected the induced liquid circulation rate, the depth of penetration of the bubble layer in the downcomer, the gas holdup in the downcomer, the mixing time and the overall volumetric gas-liquid oxygen transfer coefficient. The gas holdup in the riser was only marginally affected by the design of the separator. The impact of the various separator designs on hydrodynamic behaviour could be explained as emanating from a combination of the gas-liquid separating ability of the design and its hydraulic resistance.

引用

页码：327 / 332

页数：6

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