Method and an apparatus for removing fine-grained particles from

Gas separation – Means within gas stream for conducting concentrate to collector

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55270, 55222, 55233, 552577, 7386481, B01D 4700

Patent

active

050787586

ABSTRACT:
Method and apparatuses are disclosed for removing fine-grained particles from a gaseous sample stream from fluidized catalytic cracking regeneration unit. In one method, the fine-grained particles are wetted with condensate in a sampling system, then the wetted fine-grained particles are separated from the gaseous stream in a wetted packed column in the sampling system. The separated gaseous sample stream is cooled to remove condensible gases then is reheated. The separated fine-grained particles are kept wetted in the sampling system to prevent fouling of the sampling system, then stream is used as a motive force to return the wetted fine-grained particles to the fluidized catalytic cracking regeneration unit. The stream also is used as a drying agent to at least partially dry the wetted fine-grained particles outside of the sampling system and as a dilution agent to help prevent corrosion.

REFERENCES:
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patent: 3382649 (1968-05-01), Richmond
patent: 3391577 (1968-07-01), Friauf et al.
patent: 3403496 (1968-10-01), Ahlander et al.
patent: 3668825 (1972-06-01), McIlvaine
patent: 4854180 (1989-08-01), Mauleon et al.

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