Gas separation: processes – With control responsive to sensed condition – Concentration sensed
Patent
1998-08-14
1999-12-28
Smith, Duane S.
Gas separation: processes
With control responsive to sensed condition
Concentration sensed
95187, 95235, 96244, 96322, 96417, 261115, 261116, 261117, B01D 4706
Patent
active
060076046
ABSTRACT:
A nozzle arrangement for a scrubbing column for a flue gas in desulfurization, in which the scrubbing column has a sump, a baffle-free zone above the sump and a nozzle arrangement above the absorption zone. The nozzles, preferably by selective connection of intermediate pipe sections are connected to a branch pipe system extending from a distributor. Flow density profiles are formed in predetermined cross sectional planes of the scrubbing column by the spray cones of the nozzles. In each of these cross sectional planes, the flow density profiles of different spray cones are superimposed on one another. The flow density profiles of different cross sectional planes are superimposed upon projection of them onto a one of the planes to form a flow density complete profile in this one plane over the entire cross section of the scrubbing column. The flow density complete profile is compared with a predetermined value and, upon deviation of the flow density complete profile from the predetermined value, a position of at least one of the nozzles is adjusted. The steps are repeated until the flow density complete profile for the cross section of the scrubbing column has an approximately constant value up to a wall region of the cross section.
REFERENCES:
patent: 1430696 (1922-10-01), Smith
patent: 5173093 (1992-12-01), Johnson et al.
patent: 5271873 (1993-12-01), Nelson et al.
patent: 5620144 (1997-04-01), Strock et al.
Dubno Herbert
Lurgi Lentjes Bischoff GmbH
Smith Duane S.
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