University of Adelaide Library

Adelaide Research and Scholarship : Schools and Disciplines : School of Chemical Engineering : Chemical Engineering publications

Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/74404

Type: Conference item
Title: Quantitative in-situ measurements of sodium release from combusting South Australian brown coal particles
Author: van Eyk, Philip Joseph
Ashman, Peter John
Nathan, Graham
Alwahabi, Zeyad T.
Citation: Proceedings of the Australian Combustion Symposium, held at Shoal Bay, NSW, 29 November-1st December, 2011 / E. Kennedy, B. Dlugogorski, B. Moghtaderi and A. Masri (eds.): pp.219-222
Publisher: The Combustion Institute
Issue Date: 2011
ISSN: 1839-8170
Conference Name: Australian Combustion Symposium (2011 : Shoal Bay, NSW)
ACS 2011
School/Discipline: School of Chemical Engineering
Statement of
Responsibility: 
Philip J. van Eyk, Peter J. Ashman, Graham J. Nathan and Zeyad T. Alwahabi
Abstract: The release of volatile sodium during coal combustian is a significant factor in the fouling and corrosion of heat transfer surfaces within industrial coal-fired boilers. In this paper, new measurements of sodium release from combusing South Australian brown coal particles are reported for the first time using a previously established method (van Eyk et al. 2008). By applying a chemical equilibrium model, at an appropriate location in the flame, the total sodium release is estimated from the measured atomic sodium concentration profile. In comparison to Victorian brown coals, these South Australian brown coals release sodium more rapidly and in larger absolute quantities. Using the data collected in this study, combined with previously collected data for Victorian brown coals, it is inferred that approximately 53% of water-bound sodium and approximately 100% of the organically-bound sodium is released following devolatilisation for both South Australian and Victorian brown coals. Further work is necessary to determine whether the mechanism and kinetics of sodium release that have previously been forumlated based on Victorian coals are applicable for thes South Australian brown coals.
Keywords: Sodium; PLIF; brown coal
Rights: Copyright status unknown
RMID: 0020117680
Appears in Collections:Environment Institute publications
Chemical Engineering publications

There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

© 2008 The University of Adelaide
library@adelaide.edu.au
CRICOS Provider Number 00123M
Service Charter | Copyright | Privacy | Disclaimer