Removing particles from a particle-containing fluid

Details Removing particles from a particle-containing fluid Removing particles from a particle-containing fluid

1978-02-23

1980-09-16

Lacey, David L.

Gas separation

Means within gas stream for conducting concentrate to collector

55296, 55340, 55428, 55466, 55479, 55524, 55 99, 423DIG13, 423DIG16, 422144, 422177, B01D 4638, B01D 3702

Patent

active

042227496

ABSTRACT:
Fines are removed from a fines-containing fluid by fluidizing a bed of fluidizable solids with the fines-containing fluid at conditions avoiding fluid spouting at the bed surface, the bed solids being preferably at least two orders of magnitude greater in size than the particles, and being coated with a substance whose stickiness changes during its residence time in the bed. Particles adhere to the transiently sticky solids and can be recovered for re-use. Useful for cleaning dusty gases and recovering catalyst from cracker flue gas.

REFERENCES:
patent: 1731223 (1929-10-01), Brady
patent: 2503291 (1950-04-01), Odell
patent: 2586818 (1952-02-01), Harms
patent: 2650084 (1953-08-01), White
patent: 2786801 (1957-03-01), McKinley et al.
patent: 3543414 (1970-12-01), Gomarin
patent: 3719029 (1973-03-01), Suzukawa et al.
patent: 3847094 (1974-11-01), Taeymans et al.
patent: 3849899 (1974-11-01), Jenkinson
patent: 4038049 (1977-07-01), Melcher et al.

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