Process for removing dioxins

Dioxins are economically and efficiently removed from a flue gas from incinerators, etc. with activated carbon or activated cokes by passing a flue gas containing dioxins at 90 DEG to 120 DEG C through a cross-flow type, moving bed adsorber, thereby removing the dioxins therefrom, regenerating the d...

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Bibliographische Detailangaben
Hauptverfasser:	TANAKA, TATEO, WATANABE, TERUO, YAMAMOTO, KAZUHIKO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES FLUES HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES SEPARATION TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Dioxins are economically and efficiently removed from a flue gas from incinerators, etc. with activated carbon or activated cokes by passing a flue gas containing dioxins at 90 DEG to 120 DEG C through a cross-flow type, moving bed adsorber, thereby removing the dioxins therefrom, regenerating the dioxins-adsorbed activated carbon or activated cokes and recyclically using the regenerated activated carbon or activated cokes in the adsorber, where ammonia is injected to the flue gas in a molar ratio of ammonia to SO2 + NOx in the flue gas of 0.1 to 0.5 : 1 before passing the flue gas through the adsorber.