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Combating corrosion in biomass and waste-fired plant
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science. (Leygraf)
Vattenfall Power Consultant AB.
2010 (English)In: 9th Liege conference on Materials for Advanced Power engineering 2010 / [ed] J. Lecomte-Beckers et al, Forschungszentrum Jülich GmbH , 2010, 986-999 p.Conference paper (Refereed)
Abstract [en]

Many biomass- or waste-fired plants have problems with high temperature corrosion especially if the steam temperature is greater than500°C.  An increase in the combustion of waste fuels means that an increasing number of boilers have had problems. Therefore, there is great interest in reducing the costs associated with high temperature corrosion and at the same time there exists a desire to improve the electrical efficiency of a plant by the use of higher steam temperatures.  Assuming that the fuel is well-mixed and that there is good combustion control, there are in addition a number of other measures which can be used to reduce superheater corrosion in biomass and waste fired plants, and these are described in this paper.  These include the use of fuel additives, specifically sulphur-containing ones; design aspects like placing superheaters in less corrosive positions in a boiler, using tube shielding, a wider pitch between the tubes; operational considerations such as more controlled soot-blowing and the use of better materials.

Place, publisher, year, edition, pages
Forschungszentrum Jülich GmbH , 2010. 986-999 p.
Keyword [en]
Biomass, waste, superheaters, corrosion
National Category
Materials Engineering Inorganic Chemistry
URN: urn:nbn:se:kth:diva-53443ISBN: 978-3-89336-685-9OAI: diva2:470092
QC 20120116Available from: 2012-01-16 Created: 2011-12-28 Last updated: 2012-01-16Bibliographically approved

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