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| Number | Title | Issue Date |
| 6139807 | Apparatus for removing SO2 from flue gases and for producing ammonium sulfate solution An apparatus for removing SO2 from flue gas treats the hot flue gas with a sump liquid to quench the flue gas and saturate it with water while concentrating ammonium sulfate in the recycled liquid. The gas is then scrubbed in a packed scrubbing... | 10/31/2000 |
| 6063352 | Method of removing sulfur dioxide from flue gases, especially power plant flue gases and flue gases from garbage incinerator plants SO2 containing flue gas is scrubbed with a scrubbing solution made up from ammonia water, untreated ammonium sulfate scrubbing solution recycled from the bottom of the scrubbing zone and ammonium sulfate solution formed by oxidizing a portion o... | 05/16/2000 |
| 6017384 | Nozzle arrangement for a scrubbing column A nozzle arrangement in which the nozzles have a scrubber, especially for flow gas desulfurization, are laid in accordance with the following: (a) liquid concentrations of a component to be absorbed from a gas stream scrubbed in the column are measured ab... | 01/25/2000 |
| 6007604 | Nozzle assembly for a scrubbing column 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 ... | 12/28/1999 |
| 5993640 | Method of measuring the CaCO3 content of a scrubbing suspension, especially for a flue gas desulfurizing absorber The CaCO3 content of a scrubbing suspension, especially for a desulfurizing apparatus for flue gas is measured by injecting an acid into a constant mass flow of the suspension circulating along a bypass and measuring the pH before and after suc... | 11/30/1999 |
