Gas separation – With nonliquid cleaning means for separating media – Cohesive filter media cleaning
Patent
1988-12-22
1990-02-27
Spitzer, Robert
Gas separation
With nonliquid cleaning means for separating media
Cohesive filter media cleaning
553411, 55523, B01D 4624
Patent
active
049042874
ABSTRACT:
Disclosed is a hot gas filter system employing ceramic tube filters, or candles, in which the ratio of filter surface to system cross-section can exceed 50. The system includes a pressure vessel having an internal wall dividing the pressure vessel into first and second vessel portions, a gas inlet for directing a hot gaseous stream having particulate matter entrained therein into the first portion and a gas outlet for exhausting a filtered gaseous stream from the second vessel portion, a plurality of gas filter units supported by the internal wall and extending into the first vessel portion. Each filter unit includes a central gas plenum having an outer wall with one end of the outer wall attached to the internal wall, and a plurality of filter modules supported by the central gas plenum. Each module includes a ceramic tube, and support structure extending from the central gas plenum for supporting the ceramic tube and communicating gas between the ceramic tube and the central gas plenum. A backflow of gas is provided through the plurality of gas filter units to the ceramic tubes for periodically dislodging particulate matter from the outer surface of the tubes.
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Ciliberti, deceased David F.
Lippert Thomas E.
Electric Power Research Institute
Spitzer Robert
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