Heat recovery from spent cooking liquor in a digester plant...

Details Heat recovery from spent cooking liquor in a digester plant... Heat recovery from spent cooking liquor in a digester plant...

D - Textiles, Paper

21

C

D21C 11/00 (2006.01)

Patent

CA 2692089

The present invention relates to a method of heating white liquor or it and a second liquid for further use in the digester system of a chemical pulp mill. The digester system produces black liquor. A black liquor stream is discharged from the digester and flashed for producing flashing steam. The flashing steam is led into indirect heat exchange contact in at least one heat exchanger with white liquor or white liquor and a second liquid for producing heated white liquor or heated mixture. The flashed black liquor is further passed to heat recovery or evaporation.

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