Method of producing process steam from a black liquor

Details Method of producing process steam from a black liquor Method of producing process steam from a black liquor

D - Textiles, Paper

21

C

D21C 11/06 (2006.01) D21C 11/10 (2006.01)

Patent

CA 2348516

Method of producing a process steam (16) from a first black liquor (8) derived in connection with the production of paper pulp, wherein said first black liquor (8) is treated to give a second black liquor (10) of a higher concentration than said first black liquor as well as a liquid (13) of low concentration, whereafter said process steam (16) is produced from said low concentration liquid (13).

L'invention concerne un procédé permettant de produire de la vapeur industrielle (16) à partir de boue noire (8) issue de la production de pâte à papier. On traite cette première boue noire (8) pour obtenir une deuxième boue noire (10) de concentration supérieure à celle de la première boue noire ainsi qu'un liquide de faible concentration (13). La vapeur industrielle (16) est produite à partir du liquide de faible concentration (13).

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