Hot gas cleanup separating hard and brown coal fly ashes at temperatures up to 850 C with rigid ceramic barrier filters

Book · Sun Dec 31 04:00:00 EST 1995

OSTI ID:257067

Berbner, S ^[1]

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1. Univ. Karlsruhe (Germany). Inst. fuer Mechanische Verfahrenstechnik und Mechanik

This investigation concerns the influence of high temperatures on the cleanability (cake detachment) of hot gas filter media and the time dependence of the residual pressure drop. The objective of this project is to define the conditions for operation and cleanability of the filter to assure a steady operation even under the difficult conditions of hot gas cleaning. A steady operation includes reliable cake removal and constant residual pressure drop during operation of the filter. This should lead to an improved design and construction of filters and pulse jet cleaning systems for hot gas filtration and an extended range of their applications. The application of cleanable filter media at high temperatures is important in the fields of waste gas cleaning and product recycling. It is the basis for the further development of advanced environmental technologies, e.g. in power plant technology to protect plant components (e.g. gas turbines) and for recycling of catalyst dusts or in waste incinerators and pyrolysis plants. In many industrial processes it is getting more and more important to separate expensive products, so called advanced materials, from a hot gas stream. Cake building surface filtration with hot gas barrier filters seems to be one of the most successful approaches.

• OSTI ID: 257067
• Report Number(s): CONF-950952--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ALUMINIUM OXIDES
ANTHRACITE
BROWN COAL
CLEANING
DEASHING
EXPERIMENTAL DATA
FIBERS
FLY ASH
FUEL GAS
HOT GAS CLEANUP
MECHANICAL FILTERS
PERFORMANCE
PULSE TECHNIQUES
REMOVAL
TEMPERATURE DEPENDENCE
THICKNESS