Hot inert gas purging for filter blowback process

Details Hot inert gas purging for filter blowback process Hot inert gas purging for filter blowback process

1987-12-03

1989-03-14

Hart, Charles

Gas separation

Means within gas stream for conducting concentrate to collector

55 80, 55 82, 55 96, 55 97, 55302, B01D 3920

Patent

active

048121495

ABSTRACT:
A filter cleaning process for filters for separating particulates from a hot gas stream using hollow, tubular filter elements. Blowback and hot purge gas systems provide for cleaning of the filter elements and maintenance of the blowback system clear of the solids or condensation products that might form during separation. The process is especially useful in filtering solids from a hot, corrosive gaseous stream, such as a zirconium tetrachloride process gaseous stream, where the gas stream contains gaseous constituents that are subject to condensation directly to a solid during separation of the particulates and prior to discharge from the filtering apparatus.

REFERENCES:
patent: Re24954 (1961-03-01), Church
patent: 2721626 (1955-10-01), Rick
patent: 3325979 (1967-06-01), Smith
patent: 4343631 (1982-08-01), Ciliberti
patent: 4735635 (1988-04-01), Israelson et al.
Myers, Application Ser. No. 534,193, filed Dec. 19, 1974, laid open to public inspection on Sep. 7, 1976.

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