Process for removing mercury from flue gases

Process for removing mercury from flue gases

Process for removing mercury from flue gases of high-temperature plants, in particular power stations and waste incineration plants in which a bromine compound is fed to the multistage furnace and/or the flue gas in a plant section downstream of the furnace, the temperature during contact of the bro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WIELAND ANDREA, BEYER JOACHIM, VOSTEEN BERNHARD, POHONTSCH ANDREAS, STANDAU EWA, BONKHOFER THEODORE-GERHARD, FLETH OLAF, KANEFKE RICO, KOESER HEINZ, MUELLER CLAUS, NOLTE MICHAEL
Format: Patent
Sprache:eng
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:Process for removing mercury from flue gases of high-temperature plants, in particular power stations and waste incineration plants in which a bromine compound is fed to the multistage furnace and/or the flue gas in a plant section downstream of the furnace, the temperature during contact of the bromine compound with the flue gas being at least 500° C., preferably at least 800° C. The combustion is carried out in the presence of a sulphur compound, in particular sulphur dioxide. Subsequently to the furnace, the flue gas is subjected to an optional multistage cleanup for removing mercury from the flue gas, which cleanup comprises a wet scrubber and/or a dry cleanup.