PROCESS FOR REMOVING CHLORINE IONS FROM THE WET FLUE- GAS PROCESSING SYSTEM

PROCESS FOR REMOVING CHLORINE IONS FROM THE WET FLUE- GAS PROCESSING SYSTEM

A process for removing chlorine ions from a wet fluegas processing system comprising the sequence of steps of bringing a flue-gas containing sulfur dioxide in contact with a magnesium oxide slurry, separating solids from a part of the slurry, drying and calcining the solids to regenerate and reuse t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OKAZAKI, SHIGEYOSHI, KOBAYASHI, SADAMI, KITAYAMA, AKIRA, ETOH, YOUICHI
Format: Patent
Sprache:eng
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:A process for removing chlorine ions from a wet fluegas processing system comprising the sequence of steps of bringing a flue-gas containing sulfur dioxide in contact with a magnesium oxide slurry, separating solids from a part of the slurry, drying and calcining the solids to regenerate and reuse the magnesium oxide and washing the gas formed during the drying and calcining step with water in a washing tower. According to the process of this invention, the accumulation of the chlorine ions in the processing system is sufficiently prevented, and thus the corrosion of the apparatus is efficiently avoided.