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Regenerable process for the selective removal of sulfur dioxide from effluent gases

Patent ·
OSTI ID:5729803
; ;
A regenerable process is claimed for scrubbing SO/sub 2/ from effluent gases using an aqueous alkanolamine and the corresponding sulfite as the solvent, such amine having a boiling point below about 250/sup 0/ C. At one atmosphere pressure and wherein the alkanolamine solutions containing heat stable salts (Hss) is regenerated by alkali addition, crystallization and vacuum distillation of the amine.
Assignee:
Union Carbide Corp
Patent Number(s):
US 4389383
OSTI ID:
5729803
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
02 PETROLEUM
020800 -- Petroleum-- Waste Management
03 NATURAL GAS
030700 -- Natural Gas-- Waste Management
04 OIL SHALES AND TAR SANDS
040404 -- Oil Shales & Tar Sands-- Purification
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
42 ENGINEERING
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION CONTROL
AMINES
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
DESULFURIZATION
FLUE GAS
GASEOUS WASTES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SCRUBBING
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WASTES