Method for adjusting the s/na ratio in a sulphate pulp mill

D - Textiles – Paper – 21 – C

Patent

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Details

D21C 11/06 (2006.01) D21C 11/08 (2006.01) F23G 7/06 (2006.01) F23J 15/00 (2006.01)

Patent

CA 2144827

The invention relates to a method for adjusting the S/Na ratio at a sulphate pulp mill, wherein sulfur is separated from the chemical recovery loop as sulfurous odor gases. In the invention, the odor gases are passed into a power boiler (7) of the mill to be burned therein and they are neutralized by feeding calcium oxide generated in a lime kiln into the power boiler (7) from the kiln.

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