Abatement of no _in exhaust gases

Details Abatement of no _in exhaust gases Abatement of no _in exhaust gases

B - Operations, Transporting

01

D

23/353

B01D 53/94 (2006.01)

Patent

CA 1305308

F-3585 ABATEMENT OF NOx IN EXHAUST GASES ABSTRACT Abatement of nitrogen oxides in an industrial exhaust gas is effected by reduction of the nitrogen oxides with ammonia in the presence of a catalyst that contains a crystalline zeolite having a silica to alumina ratio of at least 50 and a Constraint Index of 1 to 12. The catalyst may be virgin catalyst or catalyst previously used for the conversion of a hydrocarbon or for the conversion of methanol to hydrocarbon.

510257

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