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Received September 22, 2014
Accepted November 4, 2014
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Effects of Operating Variables on the Solid Circulation Rate in a Three-phase Circulating Fluidized Bed
School of Chemical Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, Korea
Korean Chemical Engineering Research, August 2015, 53(4), 440-444(5), 10.9713/kcer.2015.53.4.440 Epub 29 July 2015
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Abstract
Effects of operating variables on the solid circulation rate were investigated in a three-phase circulating fluidized bed, of which inside diameter was 0.102m and height was 3.5m, respectively. Gas velocity, primary and secondary liquid velocities, particle size and height of solid particles piled up in the solid recycle device were chosen as operating variables. The solid circulation rate increased with increasing primary and secondary liquid velocities and height of solid particles piled up in the solid recycle device, but decreased with increasing particle size. The value of solid circulation rate decreased only slightly with increasing gas velocity in the riser. The values of solid circulation rate were well correlated in terms of dimensionless groups within the experimental conditions.
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Yang WG, Wang JF, Wang TF, Jin Y, Chem. Eng. J., 84(3), 485 (2001)
