Process for cooling and cleaning gas, particularly blast furnace

Details Process for cooling and cleaning gas, particularly blast furnace Process for cooling and cleaning gas, particularly blast furnace

1993-11-29

1995-09-26

Bushey, C. Scott

Gas separation: processes

Liquid contacting

And degasification of a liquid

55223, 55228, 55233, 55259, 55267, 95200, 95202, 95211, 95225, B01D 4700

Patent

active

054531152

ABSTRACT:
A process for cooling and cleaning hot gas containing ultrafine particles exhausted from a coal gasification plant, a blast furnace, or the like. The process utilizes a vertical saturation stage to enrich the gas stream with water vapor and thereby saturate the ultrafine particles contained in the gas stream. The resulting mixture of particles, exhaust gas, water vapor, and water is then directed through a packing prewasher and then an annular clearance washer for removal of the particles through the rapid condensation of the water vapor. The water and particles are separated from the gas stream in several stages throughout the process resulting in a final gas exhaust stream with a significantly lower ultrafine particle content.

REFERENCES:
patent: 2598116 (1952-05-01), Du Bois
patent: 3439724 (1969-04-01), Mason
patent: 3456709 (1969-07-01), Vegeby
patent: 3456928 (1969-07-01), Selway
patent: 3465504 (1969-09-01), Oropeza et al.
patent: 3475881 (1969-11-01), Arnold et al.
patent: 3518812 (1970-07-01), Kolm
patent: 3613333 (1971-10-01), Gardenier
patent: 3704570 (1972-12-01), Gardenier
patent: 3775948 (1973-12-01), Beam
patent: 3957464 (1976-05-01), Teller

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