Catalyst for removal of nitrogen oxides from exhaust gases

Details Catalyst for removal of nitrogen oxides from exhaust gases Catalyst for removal of nitrogen oxides from exhaust gases

1985-08-22

1987-06-09

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Miscellaneous

502527, 423239, B01J 3504

Patent

active

046720529

ABSTRACT:
A catalyst for use in a process for the removal of nitrogen oxides from exhaust gases contaminated with dust in which the process uses ammonia. The catalyst is made of a material which is easily disposable. Furthermore, the catalyst should be completely used up in the catalysis. The catalyst comprises individual ceramic bricks with a porous surface, and passages therethrough for the flow of the exhaust gases. The bricks exhibit a resistance to abrasion which is designed so that the dust of the exhaust gas which flows through the passages erodes the catalyst surface, thereby reactivating the catalyst. The exhaust gas carries the dust and the eroded material along with it.

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