B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 46/04 (2006.01) B01D 46/24 (2006.01)
Patent
CA 2110907
ABSTRACT The combustion (50) of a fuel-air mixture (52,54) is used to provide a high-temperature and high-pressure pulse of gaseous combustion products (64,66,68) for the back-flush cleaning of ceramic filter elements (22,24,26) contained in a barrier filter system (18) and utilized to separate particulates from particulate-laden process gases at high temperature and high pressure. The volume of gaseous combustion products (64,66,68) provided by the combustion (50) of the fuel-air mixture (52,54) is preferably divided into a plurality of streams (64,66,68) each passing through a sonic orifice (70) and conveyed to the open end (28) of each filter element as a high pressure pulse which passes through the filter elements (22,24,26) and dislodges dust cake supported on a surface of the filter element.
Holcombe Norman T.
Micheli Paul L.
Nakaishi Curtis V.
Finlayson & Singlehurst
Government Of The United States Of America As Represented By The
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