Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent
1980-05-22
1981-12-01
Spitzer, Robert H.
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
55389, 55418, B01D 5304, B01D 5326
Patent
active
043034225
ABSTRACT:
The invention provides an improved fuel filter for removing formation water, hydrogen sulfides, sulfur and other undesirable particulates from, for instance, a natural gas fuel supply. The improvement comprises a molecular sieve having a non-uniform diameter pelletized catalyst composed of an alkyl metal alumino silicate, combined with an inert binder. The catalyst accordingly resists powdering and supplies more free area between pellets, thus minimizing pressure drop through the molecular sieve portion of the filter. The improvement further comprises provision of tapered holes at the upper end of a tubular member contained within the lower portion of the filter. The tapered holes thus permit gaseous fuel flowing through the tubular member to undergo a rapid expansion, providing a more even distribution of fuel flow to the molecular sieve. The fuel, upon exiting the tubular member flows into a chamber concentric with the tubular member where entrained contaminants, in mass form, drop to the bottom of the chamber and are eliminated from the fuel supply.
REFERENCES:
patent: 1458005 (1923-06-01), Rohrer
patent: 2129490 (1968-09-01), Buchs
patent: 2973327 (1961-02-01), Mitchell et al.
patent: 3235089 (1966-02-01), Burroughs
patent: 3705480 (1972-12-01), Wireman
patent: 3772857 (1973-11-01), Jackson et al.
patent: 3941573 (1976-03-01), Chapel et al.
Frisenda, Jr. Frank
Fuel Inc.
Spitzer Robert H.
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