SOLID MASS FLUXES IN CIRCULATING FLUIDIZED-BEDS

被引：78

作者：

HERB, B ^{[1
]}

DOU, S ^{[1
]}

TUZLA, K ^{[1
]}

CHEN, JC ^{[1
]}

机构：

[1] LEHIGH UNIV,INST THERMOFLUID ENGN & SCI,BETHLEHEM,PA 18015

来源：

POWDER TECHNOLOGY | 1992年 / 70卷 / 03期

关键词：

Circulating Fluidized Beds - Solid Mass Fluxes;

D O I：

10.1016/0032-5910(92)80054-Z

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Experimental measurements of local solid mass flux were made in the riser component of two different circulating fluidized beds (CFBs). Tests were conducted in both a lab-scale riser measuring 5 cm i.d. and 2.7 m in height and a pilot-scale riser of 15 cm i.d. and 10.8 m height. FCC catalyst particles with a Sauter mean diameter of 68-mu-m and sand particles with mean diameters of 125-mu-m and 276-mu-m were used in the tests. The results showed the local time-average solid mass flux to vary with radial position, elevation, total solid mass flow, superficial gas velocity and mean particle diameter. Based on the solid mass flux and local solid concentration measurements, and on video studies, a physical description of the solid flow phenomena in CFBs is presented.

引用

页码：197 / 205

页数：9