Gas separation: processes – Liquid contacting
Patent
1996-02-08
1997-10-21
Woo, Jay H.
Gas separation: processes
Liquid contacting
55220, 55224, 55238, 95218, B01D 4514, B01D 4716
Patent
active
056791356
ABSTRACT:
In the event of a breach in the off-gas line of a melter operation requiring closure of the line, a secondary vessel vent line is provided with a particulate collector utilizing atomization for removal of large particulates from the off-gas. The collector receives the gas containing particulates and directs a portion of the gas through outer and inner annular channels. The collector further receives a fluid, such as water, which is directed through the outer channel together with a second portion of the particulate-laden gas. The outer and inner channels have respective ring-like termination apertures concentrically disposed adjacent one another on the outer edge of the downstream side of the particulate collector. Each of the outer and inner channels curves outwardly away from the collector's centerline in proceeding toward the downstream side of the collector. Gasflow in the outer channel maintains the fluid on the channel's wall in the form of a "wavy film," while the gas stream from the inner channel shears the fluid film as it exits the outer channel in reducing the fluid to small droplets. Droplets formed by the collector capture particulates in the gas stream by one of three mechanisms: impaction, interception or Brownian diffusion in removing the particulates. The particulate-laden droplets are removed from the fluid stream by a vessel vent condenser or mist eliminator.
REFERENCES:
patent: 2838362 (1958-06-01), Robert et al.
patent: 3054244 (1962-09-01), Hersh
patent: 3365862 (1968-01-01), Flury
patent: 3605385 (1971-09-01), Stoop
patent: 3824768 (1974-07-01), Van Diepnbroek
patent: 3912164 (1975-10-01), Lefebvie et al.
patent: 4057404 (1977-11-01), Diemer, Jr. et al.
patent: 4057602 (1977-11-01), Kolm
patent: 4218020 (1980-08-01), Reider
patent: 4815664 (1989-03-01), Tuthill et al.
patent: 5044559 (1991-09-01), Russell et al.
patent: 5115634 (1992-05-01), Bretz et al.
patent: 5156659 (1992-10-01), Wright
patent: 5176325 (1993-01-01), Vidusek
patent: 5224333 (1993-07-01), Bretz et al.
patent: 5256352 (1993-10-01), Snyder et al.
Swirl and Counterswirl Effects in Prefilming Airblast Atomizers, J. Eng. for Gas Turbines and Power by M. Aigner & S. Wittig dtd. Jan. 1988 vol. 110/105.
Perry's Chemical Engineers' Handbook Sixth Ed. 1984.
Anderson Thomas G.
Fisher Robert J.
Moser William R.
Smith Duane S.
The United States of America as represented by the United States
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