Method for the desulfurization of flue gas of a firing system

Details Method for the desulfurization of flue gas of a firing system Method for the desulfurization of flue gas of a firing system

1985-01-07

1987-01-06

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

106100, 106103, B01J 800, C01B 1700, C04B 702

Patent

active

046345833

ABSTRACT:
A method for the desulfurization of a calcium containing flue gas stream from a firing system such as a cement making plant wherein at least partially deacidified, hot raw cement meal is added to the flue gas at selected points to absorb the sulfur oxides to the calcium present in the gas. The preferred form of the invention comprises suspending the deacidified raw cement meal in the flue gas in the form of a cloud of airborne dust, and thereafter separating the dust from the flue gas after the sulfur oxides have been bonded to the calcium.

REFERENCES:
patent: 3887388 (1975-06-01), Christiansen
patent: 4080219 (1978-03-01), Pennell
patent: 4236932 (1980-12-01), Herchenbach
patent: 4276272 (1981-06-01), Schlager et al.
patent: 4298340 (1981-11-01), Herchenbach et al.
patent: 4421563 (1983-12-01), Cosar
patent: 4469664 (1984-09-01), Abelitis et al.

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