O2/CO2 and O2/N2 combustion of bituminous char particles in a bubbling fluidized bed under simulated combustor conditions

O2/CO2 and O2/N2 combustion of bituminous char particles in a bubbling fluidized bed under... •Oxy-combustion of bituminous coal char particles is studied under the simulated fluidized bed combustor conditions.•A simple transient char conversion model is developed to clarify the effect of CO2 on the char conversion.•Char-O2 reaction plays the dominant role in the conversion of a char particle in O2/CO2 conditions.•The percentage contributions of Char-CO2 to the consumption of char could account for about 7 at 900 °C bed temperature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemical Engineering Journal Elsevier

O2/CO2 and O2/N2 combustion of bituminous char particles in a bubbling fluidized bed under simulated combustor conditions

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
1385-8947
eISSN
1873-3212
D.O.I.
10.1016/j.cej.2017.11.027
Publisher site
See Article on Publisher Site

Abstract

•Oxy-combustion of bituminous coal char particles is studied under the simulated fluidized bed combustor conditions.•A simple transient char conversion model is developed to clarify the effect of CO2 on the char conversion.•Char-O2 reaction plays the dominant role in the conversion of a char particle in O2/CO2 conditions.•The percentage contributions of Char-CO2 to the consumption of char could account for about 7 at 900 °C bed temperature.

Journal

Chemical Engineering JournalElsevier

Published: Mar 15, 2018

References

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