Fluidized bed char combustion kinetic models

Dragomir Bukur, Neal R. Amundson

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The effect of the kinetics of the heterogeneous reaction between the char and oxygen, and the importance of the subsequent homogeneous oxidation of carbon monoxide oil the performance of an atmospheric fluidized bed combustor have been examined by a comparative analysis of three models. Numerical calculations illustrating the effect of operating variables such as bed temperature, fuel and sorbent particle feed size and excess air were performed for values of the parameters which are pertinent to the design of large scale utility boilers. It is found that the kinetic models predict existence of multiple steady states over a wide range of operating conditions and values of model parameters. The model predictions of combustion efficiency, carbon loading and CO concentrations are in qualitative agreement with experimental data reported in the literature.

Original languageEnglish
Pages (from-to)17-25
Number of pages9
JournalChemical Engineering Science
Volume37
Issue number1
DOIs
Publication statusPublished - 1982
Externally publishedYes

Fingerprint

Fluidized bed combustion
Fluidized Bed
Kinetic Model
Combustion
Carbon Monoxide
Kinetics
Comparative Analysis
Oxidation
Numerical Calculation
Prediction Model
Excess
Oxygen
Carbon
Experimental Data
Fluidized bed combustors
Predict
Sorbents
Carbon monoxide
Model
Range of data

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

Fluidized bed char combustion kinetic models. / Bukur, Dragomir; Amundson, Neal R.

In: Chemical Engineering Science, Vol. 37, No. 1, 1982, p. 17-25.

Research output: Contribution to journalArticle

Bukur, Dragomir ; Amundson, Neal R. / Fluidized bed char combustion kinetic models. In: Chemical Engineering Science. 1982 ; Vol. 37, No. 1. pp. 17-25.
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