Methods for the regeneration of a denitration catalyst

Details Methods for the regeneration of a denitration catalyst Methods for the regeneration of a denitration catalyst

B - Operations, Transporting

01

J

B01J 38/64 (2006.01) B01D 53/86 (2006.01) B01D 53/96 (2006.01) B01J 21/20 (2006.01) B01J 23/92 (2006.01) B01J 38/60 (2006.01) B01J 38/62 (2006.01) B01J 38/66 (2006.01) B01J 38/68 (2006.01)

Patent

CA 2268039

This invention provides a method for the regeneration of a denitration catalyst which comprises cleaning a denitration catalyst having reduced denitration power with an aqueous alkaline solution to remove the substances deposited thereon, and subjecting the catalyst to an activation treatment with an aqueous acid solution; a method for the regeneration of a denitration catalyst which comprises cleaning a denitration catalyst having reduced denitration power with a cleaning fluid comprising an aqueous solution containing sulfuric acid or ammonia at a concentration of 0.05 to 20% by weight and maintained at a temperature of 10 to 90°C; and a method for the regeneration of a denitration catalyst which comprises cleaning a denitration catalyst having reduced denitration power under the above-described conditions, and impregnating the denitration catalyst with a catalytically active component so as to support it on the catalyst.

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