Process and apparatus for treatment of waste gases

Details Process and apparatus for treatment of waste gases Process and apparatus for treatment of waste gases

Filed on

1978-03-10

Date issued

1979-11-27

Examiner

Williams, Howard S.

Patent Class

Chemistry: electrical and wave energy

SubClass

Processes and products

Other Related Categories

204247, 204266, 422145, 55 71, 55 79, 34 12, 34 57E, 34168, B04C 306, B01D 5306, B01J 814, C25C 306

Type

Patent

Status

active

Patent number

041760190

Description

ABSTRACT:
In the scrubbing of gases containing sorbable contaminants, particularly the waste gases from reduction cells for electrolytic production of aluminium the waste gas is injected tangentially into the bottom of a cylindrical chamber, from which it is withdrawn through an axial outlet passage at the top end. A solid sorbent material is introduced into the chamber at one or more positions at the top end of the chamber in such a way that it enters the ascending gas stream in a peripheral zone of the chamber.

REFERENCES:
patent: 3992176 (1976-11-01), Bohne et al.
patent: 4053375 (1977-10-01), Roberts et al.
patent: 4089119 (1978-05-01), Heinze

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