Pulp mill residual liquor recovery system

Details Pulp mill residual liquor recovery system Pulp mill residual liquor recovery system

D - Textiles, Paper

21

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D21C 11/04 (2006.01) D21C 11/12 (2006.01) F23G 5/027 (2006.01) F23G 7/04 (2006.01)

Patent

CA 1174014

PULP MILL RESIDUAL LIQUOR RECOVERY SYSTEM ABSTRACT OF THE DISCLOSURE A method and apparatus for recovering chemical from residual liquor from a pulping operation, said residual liquor containing inorganic and organic compo- nents, pyrolyzing a portion of the organics in the liquor to produce a reducing gas and residual solids containing said inorganic component and the remainder of said organics, said reducing gas containing sulfur compounds, oxidizing the remainder of the organics and recombining the sulfur contained in said reducing gas with said inorganic components to produce sulfur compounds and reducing said sulfur compounds with said reducing gas.

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