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Title: Prediction of conversion yield in circulating fluidised bed combustors using a two-dimensional population balance - article no. A76

Abstract

In combustion applications of fluidised bed reactors, the solid particles are subject to heterogeneous gas-solid chemical reactions, abrasive attrition and other thermal and mechanical processes. The resulting changes in the overall solid phase significantly influence reactor performance. This paper illustrates a particle balance model which accommodates particle distributions dependent on both size and density as well as populations consisting of multiple solids. The proposed model is tested using literature data on coal conversion obtained in a pilot scale circulating fluidised bed combustor. Model simulations give a fair representation of experimental results for different coal ranks and in a range of operating conditions, including varying temperature of combustion, excess of oxygen and superficial gas velocity in the bed.

Authors:
;  [1]
  1. University of Pisa, Pisa (Italy)
Publication Date:
OSTI Identifier:
21116257
Resource Type:
Journal Article
Journal Name:
International Journal of Chemical Reactor Engineering
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 1542-6580
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; FLUIDIZED-BED COMBUSTORS; CIRCULATING SYSTEMS; COAL; YIELDS; MATHEMATICAL MODELS; PARTICLES; DISTRIBUTION; TWO-DIMENSIONAL CALCULATIONS; PARTICLE SIZE; SIMULATION; COAL RANK

Citation Formats

Nicolella, C., and Pratola, F. Prediction of conversion yield in circulating fluidised bed combustors using a two-dimensional population balance - article no. A76. United States: N. p., 2008. Web.
Nicolella, C., & Pratola, F. Prediction of conversion yield in circulating fluidised bed combustors using a two-dimensional population balance - article no. A76. United States.
Nicolella, C., and Pratola, F. Tue . "Prediction of conversion yield in circulating fluidised bed combustors using a two-dimensional population balance - article no. A76". United States.
@article{osti_21116257,
title = {Prediction of conversion yield in circulating fluidised bed combustors using a two-dimensional population balance - article no. A76},
author = {Nicolella, C. and Pratola, F.},
abstractNote = {In combustion applications of fluidised bed reactors, the solid particles are subject to heterogeneous gas-solid chemical reactions, abrasive attrition and other thermal and mechanical processes. The resulting changes in the overall solid phase significantly influence reactor performance. This paper illustrates a particle balance model which accommodates particle distributions dependent on both size and density as well as populations consisting of multiple solids. The proposed model is tested using literature data on coal conversion obtained in a pilot scale circulating fluidised bed combustor. Model simulations give a fair representation of experimental results for different coal ranks and in a range of operating conditions, including varying temperature of combustion, excess of oxygen and superficial gas velocity in the bed.},
doi = {},
journal = {International Journal of Chemical Reactor Engineering},
issn = {1542-6580},
number = ,
volume = 6,
place = {United States},
year = {2008},
month = {7}
}