Process for scrubbing exhaust gases from diesel engines and filt

Details Process for scrubbing exhaust gases from diesel engines and filt Process for scrubbing exhaust gases from diesel engines and filt

1986-08-06

1988-03-22

Nozick, Bernard

Gas separation

Specific media material

Ceramic or sintered

55DIG30, 55524, 60311, 501 81, B01D 3906

Patent

active

047325941

ABSTRACT:
A process for scrubbing exhaust gases from diesel engines using filter cartridges of open pore ceramic foam are such that the filter cartridges are situated in the exhaust gas stream such that the exhaust gases strike the filter cartridge end and flow through it parallel to its central axis. As a result the amount of soot deposited is greatest in the part of the cartridge first meeting the inflowing exhaust gases, and decreases rapidly with increasing throughput; consequently the low efficiency part contributes greatly to the undesired backpressure. The proposed process, in which the exhaust gases flow through the most efficient part of the filter cartridge made of open pore ceramic foam, is such that the exhaust gases flow essentially transverse to the longitudinal axis and thus does not exhibit these disadvantages. The filter cartridge comprise an open pore ceramic foam for carrying out the process of the invention and comprises a cylinder with cylindrical shaped opening the central axis of which coincides with that of the cylinder. The opening can be closed at one end.

REFERENCES:
patent: 3907579 (1975-09-01), Ravault
patent: 4205971 (1980-06-01), Abthoff et al.
patent: 4264346 (1981-04-01), Mann
patent: 4451441 (1984-05-01), Ernest et al.
patent: 4631077 (1986-12-01), Spicer et al.

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