Method of reducing the sulfur oxide content of combustion gases resulting from combustion of sulfur-containing fossil fuels
Patent
·
OSTI ID:5556545
Sulfur-containing fossil fuels are combusted in the presence of calcium carbonate or calcium magnesium carbonate, whereby the sulfur oxides formed by combustion react with the calcium oxide or calcium magnesium formed from the carbonate during the combustion, thereby to form calcium sulfate or calcium magnesium sulfate. The sulfur oxide content of the combustion gas is thereby reduced. The calcium oxide or calcium magnesium oxide is removed from the combustion, and is slaked with water to form the corresponding hydroxide. This hydroxide is recycled to the combustion zone or to the combustion gases emanating from the combustion zone, whereby the quantities of the carbonate used in the combustion can be reduced.
- Assignee:
- Rohrbach, Rudolf Portlandzementwerk Dotternhausen Kg; Unassigned Or Assigned To Individual
- Patent Number(s):
- US 4185080
- OSTI ID:
- 5556545
- 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
AIR POLLUTION ABATEMENT
ALKALINE EARTH METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATE ROCKS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
DESULFURIZATION
DOLOMITE
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROXIDES
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
RECYCLING
REMOVAL
ROCKS
SEDIMENTARY ROCKS
SULFATES
SULFUR COMPOUNDS
SULFUR OXIDES
THERMOCHEMICAL PROCESSES
WASTES
010800 -- Coal
Lignite
& Peat-- Waste Management
02 PETROLEUM
020800* -- Petroleum-- Waste Management
AIR POLLUTION ABATEMENT
ALKALINE EARTH METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATE ROCKS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
DESULFURIZATION
DOLOMITE
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROXIDES
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
RECYCLING
REMOVAL
ROCKS
SEDIMENTARY ROCKS
SULFATES
SULFUR COMPOUNDS
SULFUR OXIDES
THERMOCHEMICAL PROCESSES
WASTES