Title:
セルロースの連続蒸解方法
Document Type and Number:
Japanese Patent JP4505229
Kind Code:
B2
Abstract:
A method for the continuous cooking of chemical pulp with the aim of achieving improved heat economy in a digester system having a vessel ( 1 ) for impregnation and a vessel ( 2 ) for cooking the impregnated cellulose chips. A part of the black liquor ( 14 ) withdrawn from the digester ( 2 ) is added at the beginning of a transfer system ( 4 ) to increase the temperature of the chips mixture in the transfer system ( 4 ). A fraction of the transport fluid ( 10 ) from the transfer system ( 4 ) that is continuously withdrawn from the impregnated chips fed into the top of the digester is returned to the impregnation vessel ( 1 ) at essentially the maintained transfer temperature.
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Inventors:
Snakenes, vydal
Gustavson, Rennaruto
Gustavson, Rennaruto
Application Number:
JP2003562382A
Publication Date:
July 21, 2010
Filing Date:
January 22, 2003
Export Citation:
Assignee:
Metso Fiber Karlstad Activolag
International Classes:
D21C3/24; D21C7/14
Domestic Patent References:
| JP2001316992A | ||||
| JP5503739A | ||||
| JP3040886A | ||||
| JP2216289A | ||||
| JP5195462A | ||||
| JP11323757A | ||||
| JP3130482A |
Attorney, Agent or Firm:
Takao Hamano
Teruichi Hirai
Teruichi Hirai