Publikace detail

Chemical Engineering View of the Pulp Washing

Autoři: Potůček František

Rok: 2005

Druh publikace: článek v odborném periodiku

Název zdroje: Papír a celulóza

Název nakladatele: Svaz průmyslu papíru a celulózy

Místo vydání: Praha

Strana od-do: 114-117

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Chemicko-inženýrský pohled na praní buničiny	Chemicko-inženýrský pohled na praní buničiny	praní buničiny
eng	Chemical Engineering View of the Pulp Washing	The theoretical description of pulp washers arranged in a countercurrent manner is usually based on a macroscopic model of the equipment. The concentrations in the outlet streams can be calculated knowing the wash liquor ratio, Norden efficiency factor, and concentrations in the inlet streams. For a better and more detailed description of the washing operation, a microscopic model has to be used. In displacement washing, the flow of the wash liquid through a pulp pad can be described by the dispersion flow model using one dimensionless parameter known as the Peclet number. The displacement washing is not a purely mechanical process, but diffusion of a solute from within fibres to wash liquid must be taken into account.	pulp washing; washer performance parameters; displacement washing

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