SOLIDS CIRCULATION IN SPOUTED AND SPOUT-FLUID BEDS WITH DRAFT-TUBES

被引：67

作者：

MUIR, JR ^{[1
]}

BERRUTI, F ^{[1
]}

BEHIE, LA ^{[1
]}

机构：

[1] UNIV CALGARY,DEPT CHEM & PETR ENGN,2500 UNIV DR NW,CALGARY T2N 1N4,ALBERTA,CANADA

来源：

CHEMICAL ENGINEERING COMMUNICATIONS | 1990年 / 88卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Draft-tube; Gas bypassing; Solids circulation; Spout-fluid bed;

D O I：

10.1080/00986449008940553

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A 20 cm semi-cylindrical spout-fluid bed with a draft-tube has been used to investigate the effect of various physical parameters on the solids circulation rate. A new method has been developed by which these data can be easily and accurately collected. Equations are presented which can be used to predict the maximum attainable solids circulation rate and the spouting velocity required to achieve this maximum for the unit operating in spouting mode. The circulation trends are shown to be a direct result of the phenomena of entrainment and jetting occurring in the entrainment zone investigated visually with a video camera. Preliminary gas bypassing experiments were also performed which show the ability to almost eliminate spout gas bypassing to the annulus with appropriate auxiliary gas addition. © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：153 / 171

页数：19

共 19 条

[1] SOLIDS CIRCULATION IN A SPOUT FLUID BED WITH DRAFT TUBE [J].

BERRUTI, F ;

MUIR, JR ;

BEHIE, LA .

CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 1988, 66 (06) :919-923

[2]

BRIDGEWATER J, 1985, FLUIDIZATION, V201

[3] SPOUTING WITH A POROUS DRAFT-TUBE [J].

CLAFLIN, JK ;

FANE, AG .

CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 1983, 61 (03) :356-363

[4]

CLAFLIN JK, 1984, AICHE S SER, V80, P17

[5]

ENG JH, 1988, THESIS U CALGARY CAL

[6]

EPSTEIN N, 1984, HDB POWDER SCI TECHN, P507

[7]

KHOE GK, 1980, I CHEM E S SERIES, V59

[8]

LEFROY GA, 1969, TRANS INST CHEM ENG, V47, pT120

[9]

MAMURO T, 1968, J CHEM ENG JAPAN, V1

[10]

Mathur K.B., 1974, SPOUTED BEDS

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