Examinations of Chemical Resistance and Thermal Behaviour of Ceramic Filter Materials for Hot-Gas Cleaning

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Increasing prosperity and the steady growth of the world population lead to a strongly rising energy requirement. Therefore the saving of the available resources as well as the limitation of CO{sub 2}-emission are the main reasons for developing highly efficient power stations. The use of combined cycle technology for advanced coal fired power plants allow a significantly higher conversion efficiency than it is possible in an only steam power plant. In order to increase the gas turbine inlet temperature, the filtration of fine particles is necessary. Therefore the filtration unit is one of the key components of the circulating pressurized ... continued below

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Angermann, J.; Meyer, B. & Horlbeck, W. September 19, 2002.

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Increasing prosperity and the steady growth of the world population lead to a strongly rising energy requirement. Therefore the saving of the available resources as well as the limitation of CO{sub 2}-emission are the main reasons for developing highly efficient power stations. The use of combined cycle technology for advanced coal fired power plants allow a significantly higher conversion efficiency than it is possible in an only steam power plant. In order to increase the gas turbine inlet temperature, the filtration of fine particles is necessary. Therefore the filtration unit is one of the key components of the circulating pressurized fluidized bed combustion technology (PFBC). To use this technology more effectively, gas cleaning at high temperatures or in an reducing atmosphere is necessary. A possibility of the effective gas cleaning at high temperatures is the use of porous ceramic candle filters. The structure of such filter elements usually consists of a highly porous sup port which ensures the mechanical strength and a layer which operates as the functional part for the particle removal. To ensure a guaranteed lifetime of about 16000 h the effect of combustion or gasification atmosphere and temperature on the thermal and mechanical properties of the filter material has to be studied. The examinations and results, described in this article, are part of some previous work. This paper focuses especially on the chemical resistance and the thermal behaviour of the used ceramic filter materials.

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OSTI as DE00836125

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  • 5th International Symposium on Gas Cleaning at High Temperatures, Morgantown, WV (US), 09/17/2002--09/20/2002

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  • Report No.: none
  • Office of Scientific & Technical Information Report Number: 836125
  • Archival Resource Key: ark:/67531/metadc777166

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  • September 19, 2002

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  • Dec. 3, 2015, 9:30 a.m.

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  • Jan. 22, 2016, 5:27 p.m.

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Angermann, J.; Meyer, B. & Horlbeck, W. Examinations of Chemical Resistance and Thermal Behaviour of Ceramic Filter Materials for Hot-Gas Cleaning, article, September 19, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc777166/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.