SCALING CONSIDERATIONS FOR CIRCULATING FLUIDIZED-BED RISERS

被引：110

作者：

PATIENCE, GS

CHAOUKI, J

BERRUTI, F

WONG, R

机构：

[1] ECOLE POLYTECH,DEPT GENIE CHIM,MONTREAL H3C 3A7,QUEBEC,CANADA

[2] UNIV CALGARY,DEPT CHEM & PETR ENGN,CALGARY T2N 1N4,ALBERTA,CANADA

来源：

POWDER TECHNOLOGY | 1992年 / 72卷 / 01期

关键词：

D O I：

10.1016/S0032-5910(92)85018-Q

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The ratio between actual gas velocity to particle velocity in the hydrodynamically fully developed region of Circulating Fluidized Bed risers (CFB) may be approximated by phi = 1 + 5.6/Fr + 0.47Fr(t)0.41 = U(g)/epsilonV(p). This ratio, termed the slip factor, is about 2 at operating conditions characteristic of industrial risers several meters in diameter and agrees with observations of J. M. Matsen (in D. L. Keairns (ed.), Fluidization Technology, Vol. 2, Hemisphere, 1976, p. 135). The proposed relationship between the gas and solids velocity is an adequate first approximation to estimate gas and solids residence times, blower capacity and standpipe length.

引用

页码：31 / 37

页数：7

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