Removal of sulfur oxides from preheater off gases

Details Removal of sulfur oxides from preheater off gases Removal of sulfur oxides from preheater off gases

1999-01-29

1999-12-28

Jeffery, John A.

Heating

With heating gas conveying, agitating, scattering or...

432106, 42324401, F27B 702

Patent

active

060073314

ABSTRACT:
Sulfur oxides are removed from a preheater waste gas stream by reacting the sulfur oxides with lime recovered from the off gas stream in a calcining furnace. The method is particularly adaptable for use in a cement manufacturing plant wherein the sulfur dioxides in the waste gases result from the combustion of fossil fuels used for process heat.

REFERENCES:
patent: 4469664 (1984-09-01), Abelitis et al.
patent: 4715811 (1987-12-01), Lawall
patent: 5698027 (1997-12-01), Borgholm et al.
patent: 5882190 (1999-03-01), Doumet

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