METHOD FOR REGENERATION OF CATALYST

摘要

PROBLEM TO BE SOLVED: To provide a method for regeneration of catalyst for effectively carrying out at a low cost regeneration of an NOx-removal catalyst for coal-fired boiler.

SOLUTION: In the regeneration of a degraded NOx-removal catalyst for a coat-fired boiler, firstly dust-components physically covering the catalyst surface are removed, and then the catalyst is washed with water and dried. The dried catalyst is impregnated with an aqueous solution of a vanadium compound and a tungsten compound along with an acid such as oxalic acid, and dried. The dried catalyst is burned at temperatures of 300-600°C for regeneration.

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