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Heat Exchanger Fouling and Cleaning VII
July 1-6, 2007 - Tomar, Portugal
| Editors: |
Hans Müller-Steinhagen, Institute of Technical Thermodynamics, German Aerospace Centre (DLR)
and Institute for Thermodynamics and Thermal Engineering, University of Stuttgart, Germany
M. Reza Malayeri, University of Stuttgart, Germany
A. Paul Watkinson, The University of British Columbia, Canada |
The articles for these proceedings are peer-reviewed.
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INVESTIGATION OF THE MECHANISMS OF HEAT EXCHANGER CORROSION IN A MUNICIPAL WASTE INCINERATION PLANT BY ANALYSIS OF THE RAW GAS AND VARIATION OF OPERATING PARAMETERS
C. Deuerling, Institut für Ökologische Chemie, GSF-Forschungszentrum für Umwelt und Gesundheit GmbH, Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany.
J. Maguhn, Institut für Ökologische Chemie, GSF-Forschungszentrum für Umwelt und Gesundheit GmbH, Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany
H. Nordsieck, Abteilung Umweltchemie und Prozessanalytik, BIfA-Bayerisches Institut für Angewandte Umweltforschung und -technik, Am Mittleren Moos 46, D-86167 Augsburg, Germany
B. Benker, Abteilung Chemische Prozesstechnik, Cutec-Clausthaler Umwelttechnik-Institut, Leibnizstraße 21+23 D-38678 Clausthal-Zellerfeld, Germany
R. Zimmermann, Institut für Ökologische Chemie, GSF-Forschungszentrum für Umwelt und Gesundheit GmbH, Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany & Abteilung Umweltchemie und Prozessanalytik, BIfA-Bayerisches Institut für Angewandte Umweltforschung und -technik, Am Mittleren Moos 46, D-86167 Augsburg, Germany & Analytische Chemie, Institut für Physik, Universität Augsburg, Universitätsstrasse 1, D-86159 Augsburg
R. Warnecke, GKS Gemeinschaftskraftwerk Schweinfurt GmbH, Hafenstrasse 30, 97424 Schweinfurt
ABSTRACT:
The detailed mechanism of high temperature chlorine
corrosion, the dominant cause of corrosion in a municipal
solid waste incinerator (MSI), has still to be clarified
(Schroer, 2002). Upon its way through the boiler the raw
gas is subject to various physical and chemical processes
and interactions. Of these, sulphation of chlorides is
supposed to have the major impact on chlorine corrosion
(Neumann, 1997).
The physical and chemical mechanisms of corrosion were
investigated at a municipal solid waste incinerator. Both, the
particulate and gas phase of the flue gas, were chemically
and physically analyzed during their way through the boiler,
at temperatures from close to 1000 °C down to 200 °C. The
raw gas composition was analyzed during normal operation
and soot blowing cleaning routine. Additionally, operating
parameters of the plant were varied, and deposition
processes were evaluated with the aim to find out primary
measures to reduce corrosion rates.
The particle mass concentration exhibits a bimodal size
distribution with maxima at approximately 0.5 μm –
growing by duration of travel – and 100 μm. First results
show that sulphation of the particles can be observed upon
travel through the boiler and on the fouling. Sulphur
containing additives increased the sulphation of the particles
during flight though not to completion.
C. Deuerling, J. Maguhn, H. Nordsieck, B. Benker, R. Zimmermann, and R. Warnecke, "INVESTIGATION OF THE MECHANISMS OF HEAT EXCHANGER CORROSION IN A MUNICIPAL WASTE INCINERATION PLANT BY ANALYSIS OF THE RAW GAS AND VARIATION OF OPERATING PARAMETERS" in "Heat Exchanger Fouling and Cleaning VII", Hans Müller-Steinhagen, Institute of Technical Thermodynamics, German Aerospace Centre (DLR)
and Institute for Thermodynamics and Thermal Engineering, University of Stuttgart, Germany
M. Reza Malayeri, University of Stuttgart, Germany
A. Paul Watkinson, The University of British Columbia, Canada
Eds, ECI
Symposium Series, Volume RP5 (2007). http://services.bepress.com/eci/heatexchanger2007/15
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