Title:
METHOD FOR REMOVING DIOXIN
Document Type and Number:
Japanese Patent JPH07763
Kind Code:
A
Abstract:
PURPOSE: To efficiently and economically remove the dioxins in waste gas discharged from an incinerator with activated carbon or active coke.
CONSTITUTION: The waste gas contg. dioxins and kept at 90-120°C is sent to a cross-flow moving-bed adsorber (a) packed with activated carbon or active coke to remove the dioxins. The used carbon or coke is heated, regenerated and recycled. Ammonia is injected into the gas before the adsorber, and the molar ratio of the ammonia to the SO2 and NOx contained in the waste gas is controlled 0.1-0.5.
Inventors:
WATABE TERUO
TANAKA TAKEO
YAMAMOTO KAZUHIKO
TANAKA TAKEO
YAMAMOTO KAZUHIKO
Application Number:
JP17890692A
Publication Date:
January 06, 1995
Filing Date:
June 15, 1992
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES
International Classes:
B01D53/34; B01D53/08; B01D53/70; B01D53/72; F23J15/02; (IPC1-7): B01D53/70; B01D53/34
Attorney, Agent or Firm:
Isamu Ohashi (1 outside)
Next Patent: METHOD AND APPARATUS FOR CLEANING FLUE GAS