Reactivation of catalysts useful for nitrogen oxides removal

Details Reactivation of catalysts useful for nitrogen oxides removal Reactivation of catalysts useful for nitrogen oxides removal

B - Operations, Transporting

01

J

252/52.L

B01J 23/90 (2006.01) B01J 21/20 (2006.01)

Patent

CA 1053216

ABSTRACT OF THE DISCLOSURE Catalysts inactivated in the course of removing nitrogen oxides in the presence of ammonia by poisons present in exhaust gas can be reactivated for repeated reuses by calcination in the atmosphere at an elevated temperature, e.g., from about 700° C. to 1,200° C. - 1 -

237419

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