Monolithic catalytic converter with improved gas distribution

Details Monolithic catalytic converter with improved gas distribution Monolithic catalytic converter with improved gas distribution

1987-08-06

1989-01-10

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422177, 422180, 422222, 55414, 55416, 60299, F01N 324, B01D 5336

Patent

active

047972637

ABSTRACT:
A catalytic converter has a monolith with a plurality of catalyst coated passages to which internal combustion engine exhaust gases are directed with a nonuniform velocity profile that is highest at the center. A flow distributor is mounted in the converter downstream of the monolith that restricts flow centrally through the monolith while allowing relatively free flow radially outward toward the periphery to thereby alter the velocity profile at the entrance to the monolith so as to effect substantially equal distribution of the gases between all the monolith passages without extracting heat from the gases prior to entering same and without adding substantial back pressure.

REFERENCES:
patent: 3695851 (1972-10-01), Perga
patent: 3719457 (1973-03-01), Nagamatsu
patent: 3749130 (1973-07-01), Howitt et al.
patent: 3780772 (1973-12-01), Carnahan et al.
patent: 4002433 (1977-01-01), Oser
patent: 4328188 (1982-05-01), Kawata

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