Method and apparatus for the purification of gases which contain solid and gaseous impurities

Patent · Tue Sep 04 04:00:00 EDT 1984

OSTI ID:5864917

Tuovinen, F H; Lehtola, K

The invention relates to a method and apparatus for the purification of gases, and especially to the purification of industrial flue gases, of solid and/or gaseous impurities. In the method, the gases are scrubbed during a scrubbing stage by spraying into them scrubbing liquid and water, and the drops of liquid are removed from the gases during a drop separation stage. Prior to the scrubbing stage the hot gases are moistened in a pre-moistening stage by spraying into them scrubbing liquid in such a manner that the scrubbing liquid partly vaporizes. The scrubbing liquid is preferably sprayed countercurrently in relation to the gases. The apparatus for the purification of gases consists of a scrubbing unit (3, 4), a drop separation unit (5), devices for circulating the scrubbing liquid countercurrently in relation to the gases, devices for the cooling, regeneration and recycling of the scrubbing liquid, and a pre-moistening unit (2) for the moistening of the gases.

• Research Organization: Ulvila
• Assignee: Outokumpu Oy, Helsinki, Finland
• Patent Number(s): US 4469493
• OSTI ID: 5864917
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CIRCULATING SYSTEMS
COOLING
DESIGN
DROPLETS
EQUIPMENT
EVAPORATION
FLUE GAS
GASEOUS WASTES
PARTICLES
PHASE TRANSFORMATIONS
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
PURIFICATION
REGENERATION
SCRUBBERS
SCRUBBING
SPRAYS
WASTES