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

Conference · Thu Sep 19 00:00:00 EDT 2002

OSTI ID:836125

Angermann, J; Meyer, B; Horlbeck, W

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.

• Research Organization: TU Bergakademie Freiberg Reiche Zeche, 09596 Freiberg (DE)
• Sponsoring Organization: none (US)
• OSTI ID: 836125
• Resource Relation: Conference: 5th International Symposium on Gas Cleaning at High Temperatures, Morgantown, WV (US), 09/17/2002--09/20/2002; Other Information: PBD: 19 Sep 2002
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
CERAMICS
CLEANING
COAL
COMBINED CYCLES
COMBUSTION
EFFICIENCY
FILTRATION
FLUIDIZED-BED COMBUSTION
FUNCTIONALS
GAS TURBINES
GASIFICATION
LIFETIME
MECHANICAL PROPERTIES
POWER PLANTS
REMOVAL
STEAM
HIGH TEMPERATURE CORROSION
CERAMIC CANDLE FILTER
HOT-GAS CLEANING
THERMODYNAMIC MODELLING