System for drying and burning viscous aqueous liquors which...

Details System for drying and burning viscous aqueous liquors which... System for drying and burning viscous aqueous liquors which...

D - Textiles, Paper

21

C

9/37, 9/36.2

D21C 11/12 (2006.01) D21C 11/10 (2006.01) F23G 7/04 (2006.01) F23G 7/10 (2006.01)

Patent

CA 1160805

-11- A NEW SYSTEM FOR DRYING AND BURNING VISCOUS AQUEOUS LIQUORS WHICH CONTAIN ORGANICS ABSTRACT OF THE DISCLOSURE Sawdust is mixed with partially concentrated black liquor from pulp manufacture. The sawdust, coated with the solids of the black liquor, is dried by heated air. The sawdust, coated with organic and inorganic black liquor solids, is fed to the hearth of a chemical recovery boiler. Combustion of the char formed on the boiler hearth produces heat which causes additional organic material to pyrolize. The inorganic material combines to form molten smelt. The moisture-laden, heated air from the dryer is introduced into the boiler with the secondary air and the smelt is tapped off into an aqueous solution to form green liquor. C-800330

379492

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