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Title: Attrition of coal ash particles in a fluidized-bed reactor

Abstract

Experimental data of ash-particles attrition in a fluidized bed is presented, and also the results of modeling. Five sizes of ash particles (1.02-1.25; 1.25-1.6; 1.6-2.0; 2.0-5.0; 5.0-10.0 mm) produced in an industrial CFB boiler were examined. A new model of mechanical attrition has been proposed which incorporates new parameters: the shape factor of particles and the ratio of the bed height to bed diameter, strongly influencing the rate of bed mass loss. The model describes very well experimental data for coal-ash particles attrition. The attrition-rate coefficient for ash particles was evaluated.

Authors:
;  [1]
  1. Silesian Technical University, Katowice (Poland)
Publication Date:
OSTI Identifier:
20905922
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIChE Journal; Journal Volume: 53; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; FLUIDIZED BED BOILERS; CIRCULATING SYSTEMS; ASHES; COAL; FLUIDIZED BED REACTORS; WEAR; PARTICLES; PARTICLE SIZE; MATHEMATICAL MODELS

Citation Formats

Tomeczek, J., and Mocek, P. Attrition of coal ash particles in a fluidized-bed reactor. United States: N. p., 2007. Web. doi:10.1002/aic.11140.
Tomeczek, J., & Mocek, P. Attrition of coal ash particles in a fluidized-bed reactor. United States. doi:10.1002/aic.11140.
Tomeczek, J., and Mocek, P. Tue . "Attrition of coal ash particles in a fluidized-bed reactor". United States. doi:10.1002/aic.11140.
@article{osti_20905922,
title = {Attrition of coal ash particles in a fluidized-bed reactor},
author = {Tomeczek, J. and Mocek, P.},
abstractNote = {Experimental data of ash-particles attrition in a fluidized bed is presented, and also the results of modeling. Five sizes of ash particles (1.02-1.25; 1.25-1.6; 1.6-2.0; 2.0-5.0; 5.0-10.0 mm) produced in an industrial CFB boiler were examined. A new model of mechanical attrition has been proposed which incorporates new parameters: the shape factor of particles and the ratio of the bed height to bed diameter, strongly influencing the rate of bed mass loss. The model describes very well experimental data for coal-ash particles attrition. The attrition-rate coefficient for ash particles was evaluated.},
doi = {10.1002/aic.11140},
journal = {AIChE Journal},
number = 5,
volume = 53,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}