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Challenging the Traditional Counter‐Current Water Circulation System Case: Washing of Soap in a Kraft Pulp Fibreline
Author(s) -
AlaKaila Kari,
Poukka Outi,
Tervola Pekka
Publication year - 2005
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450830420
Subject(s) - pulp and paper industry , kraft process , kraft paper , pulp (tooth) , dilution , chemistry , soap , limiting , solubility , circulation (fluid dynamics) , process engineering , environmental science , engineering , computer science , organic chemistry , mechanical engineering , thermodynamics , medicine , physics , pathology , world wide web , aerospace engineering
Would it be possible to challenge the traditional counter‐current water circulation system in a way that enables better soap washability, and thus improves process runnability in the kraft pulp fibreline? New water circulation alternatives were simulated in order to find ways to modify dissolved solids contents in the liquors and thus to improve soap washability. An application of using different fractions of liquors in dilution washing proved to be an interesting alternative. The presented modification principles should be applicable also in other branches of the chemical industry, especially when solubility is a limiting factor in washing.