Process and apparatus for treating green liquor

Details Process and apparatus for treating green liquor Process and apparatus for treating green liquor

D - Textiles, Paper

21

C

D21C 11/00 (2006.01)

Patent

CA 2724395

A method of and apparatus for treating a green liquor stream produced in a kraft pulp process to separate green liquor from dregs present in the stream by utilizing a filtration vessel that has a pressure differential between the green liquor inlet and outlet to drive the dregs from the green liquor. In addition, negative pressure is utilized in the filtration vessel to thereby drive water vapor from and consequently cool the filtered green liquor.

Linvention concerne un procédé et un appareil de traitement dun flux de liqueur verte produit dans un procédé de pâte kraft, afin de séparer la liqueur verte des lies présentes dans le flux en utilisant un récipient de filtration ayant un différentiel de pression entre lentrée et la sortie de liqueur verte, afin dentraîner les lies de la liqueur verte. En outre, une pression négative est utilisée dans le récipient de filtration pour entraîner ainsi la vapeur deau, puis refroidir la liqueur verte filtrée.

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