Flue gas scrubber system

Patent · Tue Aug 09 04:00:00 EDT 1988

OSTI ID:6546351

Lehto, J M

This patent describes a scrubber module for simultaneous removal of fly ash and sulfur dioxide from the gas, comprising: a tank having upper and lower ends, the lower end of the tank being capable of being filled with aqueous absorbent; means defining a flue gas inlet in the upper end of the tank; means defining a flue gas outlet in the upper end of the tank in spaced relationship with the flue gas inlet therein; partition means for dividing the upper end of the tank into two subchambers in respective fluid communication with the flue gas inlet and the flue gas outlet; the partition means including a plurality of horizontal fingers each bounded in part by interconnected spaced-apart side walls with end walls connected between adjacent fingers in order to define a zig-zag lower edge submerged in the aqueous absorbent, one side of the partition means opening onto the subchamber communicating with the flue gas inlet for directing the flue gas through the aqueous absorbent, and the other side of the partition means opening into the subchamber communicating with the flue gas outlet; and means extending into the tank beneath the partition means for introducing an oxygen containing gas into the aqueous absorbent.

• Assignee: Northern States Power Co., Minneapolis, MN
• Patent Number(s): US 4762686
• OSTI ID: 6546351
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORBENTS
ADSORPTION
AEROSOL WASTES
AIR POLLUTION CONTROL
AQUEOUS SOLUTIONS
ASHES
CHALCOGENIDES
CHEMICAL REACTIONS
CONTAINERS
CONTROL
DEASHING
DESIGN
DESULFURIZATION
DISPERSIONS
EQUIPMENT
FLUE GAS
FLY ASH
GASEOUS WASTES
MIXTURES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
REMOVAL
RESIDUES
SCRUBBERS
SCRUBBING
SOLUTIONS
SORPTION
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TANKS
WASTES