Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1978-08-02
1980-01-22
Vertiz, O. R.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
110343, 110345, C01B 1700
Patent
active
041850807
ABSTRACT:
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.
REFERENCES:
patent: 2718453 (1955-09-01), Beckman
patent: 3851042 (1974-11-01), Minnick
patent: 3957953 (1976-05-01), Squires
Heller Gregory A.
Rohrbach Gerhard
Rohrbach Rudolf
Vertiz O. R.
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