Honeycomb structure for countercurrent gas flow

Details Honeycomb structure for countercurrent gas flow Honeycomb structure for countercurrent gas flow

1973-05-21

1976-06-01

Wolk, Morris O.

Chemistry: physical processes

Physical processes

Crystallization

23288FC, 252477R, B01J 802, B01J 3504, F01N 315

Patent

active

039605108

ABSTRACT:
In a two-stage catalytic treatment of engine exhaust gases a monolithic catalyst structure having a first catalytic section concentric within a second catalytic section, the first and second sections being in spaced apart relation for nearly the entire length of the monolith. The structural arrangement aids in reducing the possiblity of catalyst breakage.

REFERENCES:
patent: 3065595 (1962-11-01), Gary
patent: 3544264 (1970-12-01), Hardison
patent: 3733181 (1973-05-01), Tourtellotte et al.
patent: 3741725 (1973-06-01), Graham
patent: 3823555 (1974-07-01), Cole
patent: 3910770 (1975-10-01), Kobylinski

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