Gas separation: processes – Liquid contacting – And recycle or reuse of contact liquid for further contact
Patent
1994-05-11
1995-09-19
Spitzer, Robert
Gas separation: processes
Liquid contacting
And recycle or reuse of contact liquid for further contact
95195, 95200, 95224, 95235, 4232421, 42324301, B01D 5318, B01D 5350
Patent
active
054512506
ABSTRACT:
A method for converting a double-loop flue gas desulfurization system to a single-loop desulfurization system includes removing the deep packing from the scrubber housing and replacing the packing with a thin tray having a plurality of perforations. The return line which connects the bowl is removed from the feed tank; and a plurality of openings, apertures or perforations are provided in the shroud ring and the bowl of the housing in order to permit slurry to pass from upper spray headers to the bottom of the housing as well as permit flue gas flow upwardly through the housing to the flue gas outlet. The lower spray headers are removed from the housing and the feed line connected to the lower spray headers is reconnected to the feed tank for providing the single-loop. An oxidation air system is provided in the feed tank for creating an in-situ forced oxidation system.
REFERENCES:
patent: 4375976 (1983-03-01), Potter
patent: 5308509 (1994-05-01), Bhat et al.
patent: 5354482 (1994-10-01), Varadi
Feeney Steve
Gohara Wadie F.
Edwards Robert J.
Kalka Daniel S.
Spitzer Robert
The Babcock & Wilcox Company
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