Chemistry: physical processes – Physical processes – Crystallization
Patent
1975-04-04
1976-09-21
Richman, Barry S.
Chemistry: physical processes
Physical processes
Crystallization
23288R, 23288FC, 60299, B01J 818, B01J 824, F01N 315, F01N 504
Patent
active
039816850
ABSTRACT:
The exhaust gases from an internal combustion engine pass through a chamber which has a bed of abrasive particles in the bottom. These particles are carried across catalyst surfaces located above the bed when the exhaust gases are blown through the bed thereby reactivating the catalyzed surfaces during the operation of the engine. The abrasive particles drop back into the bed during use so that the operation is comparable to a fluidized bed. Clearance is provided between the surface of the bed of particles and the base of the catalyzed surfaces that permits a free access to the catalyzed surfaces by the particles and a return of the particles to the bed without interfering with the flow of the exhaust gases over the catalyzed surfaces.
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Garris Bradley R.
Richman Barry S.
United Technologies Corporation
Warren Charles A.
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