Method for drying and burning viscous aqueous liquors which cont

Details Method for drying and burning viscous aqueous liquors which cont Method for drying and burning viscous aqueous liquors which cont

1981-10-30

1982-12-14

Kratz, Peter F.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

162 3011, 423207, 423DIG3, D21C 1112

Patent

active

043636985

ABSTRACT:
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.

REFERENCES:
patent: 2928184 (1960-03-01), Lonngreen
patent: 3053615 (1962-09-01), Steinert

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