Thermodynamic modelling of the system Al2O3-SiO2-CaO-FeO-Fe2O3 to predict the flux requirements for coal ash slag

Jak, E, Degterov, S, Hayes, PC and Pelton, AD (1998) Thermodynamic modelling of the system Al2O3-SiO2-CaO-FeO-Fe2O3 to predict the flux requirements for coal ash slag. Fuel, 77 1/2: 77-84. doi:10.1016/S0016-2361(97)00137-3


Author Jak, E
Degterov, S
Hayes, PC
Pelton, AD
Title Thermodynamic modelling of the system Al2O3-SiO2-CaO-FeO-Fe2O3 to predict the flux requirements for coal ash slag
Journal name Fuel   Check publisher's open access policy
ISSN 0016-2361
Publication date 1998-01
Sub-type Article (original research)
DOI 10.1016/S0016-2361(97)00137-3
Volume 77
Issue 1/2
Start page 77
End page 84
Total pages 8
Place of publication United Kingdom
Publisher Elsevier
Language eng
Subject 091407 Pyrometallurgy
Abstract Slags are formed during coal combustion processes as a result of the melting and reaction of the mineral matter. Predicting the outcome of these complex chemical reactions has long been a problem. Improvements in chemical thermodynamic models of oxide systems and computational methods now make these predictions possible. In this paper a model of the system Al2O3---SiO2---CaO---FeO---Fe2O3, developed using the F*A*C*T computer system, is presented. Examples are given of the use of the model to predict the phases formed as a function of ash composition, temperature and oxygen partial pressure of the system. These examples show how results can be presented in forms which can be readily used by practising combustion engineers, and coal production and marketing personnel.
Keyword coal ash slag
Computer Systems
Model System
Slags
thermodynamic modelling
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Chemical Engineering Publications
 
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