The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology
2014
Аутори
Bakić, GordanaŠijački Žeravčić, Vera
Đukić, Miloš
Tucaković, Dragan
Stojiljković, Dragoslava
Rajičić, Bratislav
Stupar, Goran
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The emission of nitrogen oxides (NOx) during combustion of fossil fuels is considered as one of the major sources of environmental hazards. As a result, the limitations of concentration of nitrogen oxides in fuel gases are regulated. The implementation of low NOx burners in pulverized coal-fired boilers has led to a rise in the fireside corrosion rate of the waterwall boiler tubes in some power plants. Under normal combustion conditions, an oxidizing atmosphere helps formation of a protective oxide scale on the surface of the boiler tubes, thus impeding gaseous corrosion. However, the use of low NOx technology changes the combustion environment, resulting in the presence of reduction gases characterized by large amounts of CO and H2S. In areas of reducing atmosphere, a porous, non-protective scale is produced on the waterwalls that could leads to significant metal loss per year due to corrosion. In order to better understand the mechanisms and kinetics of the fireside corrosion, it was... determined that, in addition to the type of atmosphere formed during fuel combustion, coal composition has an important role in the occurrence of fireside corrosion. The aim of this paper is to analyze the possibility of occurrence of fireside corrosion, i.e., determine the corrosion potential of domestic coals and identify possible problems that could occur during combustion using low NOx technologies.
Кључне речи:
gaseous corrosion / low NOx / corrosion protectionИзвор:
Proceeding of International Conference "Power Plants 2014", 2014Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Bakić, Gordana AU - Šijački Žeravčić, Vera AU - Đukić, Miloš AU - Tucaković, Dragan AU - Stojiljković, Dragoslava AU - Rajičić, Bratislav AU - Stupar, Goran PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5322 AB - The emission of nitrogen oxides (NOx) during combustion of fossil fuels is considered as one of the major sources of environmental hazards. As a result, the limitations of concentration of nitrogen oxides in fuel gases are regulated. The implementation of low NOx burners in pulverized coal-fired boilers has led to a rise in the fireside corrosion rate of the waterwall boiler tubes in some power plants. Under normal combustion conditions, an oxidizing atmosphere helps formation of a protective oxide scale on the surface of the boiler tubes, thus impeding gaseous corrosion. However, the use of low NOx technology changes the combustion environment, resulting in the presence of reduction gases characterized by large amounts of CO and H2S. In areas of reducing atmosphere, a porous, non-protective scale is produced on the waterwalls that could leads to significant metal loss per year due to corrosion. In order to better understand the mechanisms and kinetics of the fireside corrosion, it was determined that, in addition to the type of atmosphere formed during fuel combustion, coal composition has an important role in the occurrence of fireside corrosion. The aim of this paper is to analyze the possibility of occurrence of fireside corrosion, i.e., determine the corrosion potential of domestic coals and identify possible problems that could occur during combustion using low NOx technologies. C3 - Proceeding of International Conference "Power Plants 2014" T1 - The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology UR - https://hdl.handle.net/21.15107/rcub_machinery_5322 ER -
@conference{ author = "Bakić, Gordana and Šijački Žeravčić, Vera and Đukić, Miloš and Tucaković, Dragan and Stojiljković, Dragoslava and Rajičić, Bratislav and Stupar, Goran", year = "2014", abstract = "The emission of nitrogen oxides (NOx) during combustion of fossil fuels is considered as one of the major sources of environmental hazards. As a result, the limitations of concentration of nitrogen oxides in fuel gases are regulated. The implementation of low NOx burners in pulverized coal-fired boilers has led to a rise in the fireside corrosion rate of the waterwall boiler tubes in some power plants. Under normal combustion conditions, an oxidizing atmosphere helps formation of a protective oxide scale on the surface of the boiler tubes, thus impeding gaseous corrosion. However, the use of low NOx technology changes the combustion environment, resulting in the presence of reduction gases characterized by large amounts of CO and H2S. In areas of reducing atmosphere, a porous, non-protective scale is produced on the waterwalls that could leads to significant metal loss per year due to corrosion. In order to better understand the mechanisms and kinetics of the fireside corrosion, it was determined that, in addition to the type of atmosphere formed during fuel combustion, coal composition has an important role in the occurrence of fireside corrosion. The aim of this paper is to analyze the possibility of occurrence of fireside corrosion, i.e., determine the corrosion potential of domestic coals and identify possible problems that could occur during combustion using low NOx technologies.", journal = "Proceeding of International Conference "Power Plants 2014"", title = "The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology", url = "https://hdl.handle.net/21.15107/rcub_machinery_5322" }
Bakić, G., Šijački Žeravčić, V., Đukić, M., Tucaković, D., Stojiljković, D., Rajičić, B.,& Stupar, G.. (2014). The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology. in Proceeding of International Conference "Power Plants 2014". https://hdl.handle.net/21.15107/rcub_machinery_5322
Bakić G, Šijački Žeravčić V, Đukić M, Tucaković D, Stojiljković D, Rajičić B, Stupar G. The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology. in Proceeding of International Conference "Power Plants 2014". 2014;. https://hdl.handle.net/21.15107/rcub_machinery_5322 .
Bakić, Gordana, Šijački Žeravčić, Vera, Đukić, Miloš, Tucaković, Dragan, Stojiljković, Dragoslava, Rajičić, Bratislav, Stupar, Goran, "The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology" in Proceeding of International Conference "Power Plants 2014" (2014), https://hdl.handle.net/21.15107/rcub_machinery_5322 .