The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2006
Filed:
Jan. 22, 2003
Vidar Snekkenes, Karlstad, SE;
Lennart Gustavsson, Karlstad, SE;
Vidar Snekkenes, Karlstad, SE;
Lennart Gustavsson, Karlstad, SE;
Kvaerner Pulping AB, , SE;
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 () for impregnation and a vessel () for cooking the impregnated cellulose chips. A part of the black liquor () withdrawn from the digester () is added at the beginning of a transfer system () to increase the temperature of the chips mixture in the transfer system (). A fraction of the transport fluid () from the transfer system () that is continuously withdrawn from the impregnated chips fed into the top of the digester is returned to the impregnation vessel () at essentially the maintained transfer temperature.