Honeycomb body as catalyst support for cleaning the exhaust of i

Details Honeycomb body as catalyst support for cleaning the exhaust of i Honeycomb body as catalyst support for cleaning the exhaust of i

1988-04-08

1989-09-05

Shine, W. J.

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

Miscellaneous

502527, B01J 3200

Patent

active

048638951

ABSTRACT:
Honeycomb bodies for cleaning the exhaust gases of internal combustion engines function as carrier for a wash coat impregnated with a noble metal. The known honeycomb bodies exhibit square conduit cross sections with a cross-sectional area of approximately 1.1.times.1.1 mm.sup.2. The small cross sections result in high flow resistances which are amplified even more by deposits of rather thick layers of wash coat in the corner areas. A considerable diminution of the flow resistances is achieved without reducing the amounts of harmful substances converted while saving honeycomb material if the honeycomb bodies (1) comprise individual conduits (2) which exhibit a ratio of width (3) to height (4) of 1.5 to 15.

REFERENCES:
patent: Re32044 (1985-12-01), Atwood et al.
patent: 4448828 (1984-05-01), Mochida et al.
patent: 4665051 (1987-05-01), Nonnenmann

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