Process for treating flue gas

Details Process for treating flue gas Process for treating flue gas

1980-08-18

1982-09-21

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423239, B01J 800, C01B 1700

Patent

active

043506704

ABSTRACT:
A coal or petroleum combustion flue gas containing sulfur oxides and dust is treated by contacting the flue gas with a sulfur dioxide-oxidizing catalyst, thereby converting sulfur dioxide to sulfur trioxide, allowing the resulting sulfur trioxide to react with components of dust, absorbing the trioxide into the dust as a sulfate, and removing the dust. Catalytic oxidation of sulfur dioxide can be efficiently carried out at a low temperature and sulfur oxides can be efficiently removed from the flue gas.

REFERENCES:
patent: 3579569 (1971-05-01), Montgomery et al.
patent: 4187282 (1980-02-01), Matsuda et al.
Chemical Engineering Progress, vol. 71, No. 5, May 1975 pp. 66-71.

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