Treatment of gases containing sulfur dioxide

Patent · Tue Feb 10 04:00:00 EST 1976

OSTI ID:7192409

Gorin, E; Kulik, M D; Struck, R T

An improvement is described in regenerative SO/sub 2/ scrubbing systems which use sodium, potassium, or ammonium carbonate to react with the SO/sub 2/ to form sulfite, wherein a thiosulfate-rich aqueous solution of the carbonate is used to prevent oxidation of the sulfite to sulfate; to serve both as a source of the carbonate and as a source of sulfite-reducing agent; and finally to increase the salt concentration in the SO/sub 2/ absorbent solution, to thereby permit operation of the scrubbing system at higher temperatures than those normally employed.

• Assignee: Continental Oil Co.
• Patent Number(s): US 3937787
• OSTI ID: 7192409
• 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
ALKALI METAL COMPOUNDS
AMMONIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
DIAGRAMS
FLOWSHEETS
FLUE GAS
GASEOUS WASTES
OXIDES
OXYGEN COMPOUNDS
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
REMOVAL
SCRUBBING
SODIUM CARBONATES
SODIUM COMPOUNDS
SULFATES
SULFITES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WASTES