Equilibrium Composition of Simulated Coal Combustion Products: Relationship to Fireside Corrosion and Ash Fouling

[+] Author and Article Information
J. S. Wilson

Morgantown Energy Research Center, Morgantown, W. Va.

M. W. Redifer

General Electric Co., Specialty Materials Department, Worthington, Ohio

J. Eng. Power 96(2), 145-152 (Apr 01, 1974) (8 pages) doi:10.1115/1.3445763 History: Received July 30, 1973; Online July 14, 2010


A computer solution of chemical equilibrium composition is presented for high-temperature combustion reactions related to fireside corrosion and ash fouling. A simple calculation system, which models the injection of a sodium-potassium mixture through a flame, is solved for equilibrium compositions at temperatures from 1500 deg to 3000 deg F at varying oxygen levels from 0.1 percent to 17 percent in the gas stream and 1 atmosphere pressure. At equilibrium, principally alkali sulfates and hydroxides are produced in the model of a combustion product atmosphere resembling that in a coal-fired boiler. A total of 42 reactions involving 40 chemical species were treated in the reactant mixture and compositions for the entire system are included.

Copyright © 1974 by ASME
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