An Influence of Pulp Consistency upon the Efficiency of Displacement Washing

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

An Influence of Pulp Consistency upon the Efficiency of Displacement Washing

Popis výsledku v původním jazyce

A mathematical model assuming an axial dispersion mechanism, based on two dimensionless criteria, namely the Péclet number and the Biot number, was proposed for displacement washing of packed bed of porous, compressible, and cylindrical particles. Bulk fluid concentration, intra-pore solute concentration, and concentration of the solute adsorbed onto the fiber surface were considered as a function of the washing time and of position in the bed. Displacement washing experiments performed on pulp beds formed from unbeaten, unbleached kraft fibers were simulated with a laboratory washing cell. The model predicted values of the breakthrough curves, the average alkali lignin concentration in the bed, and the displacement ratio were compared with those obtained experimentally. A close agreement was found between experimental data and ones calculated from model equations.

Název v anglickém jazyce

An Influence of Pulp Consistency upon the Efficiency of Displacement Washing

Popis výsledku anglicky

A mathematical model assuming an axial dispersion mechanism, based on two dimensionless criteria, namely the Péclet number and the Biot number, was proposed for displacement washing of packed bed of porous, compressible, and cylindrical particles. Bulk fluid concentration, intra-pore solute concentration, and concentration of the solute adsorbed onto the fiber surface were considered as a function of the washing time and of position in the bed. Displacement washing experiments performed on pulp beds formed from unbeaten, unbleached kraft fibers were simulated with a laboratory washing cell. The model predicted values of the breakthrough curves, the average alkali lignin concentration in the bed, and the displacement ratio were compared with those obtained experimentally. A close agreement was found between experimental data and ones calculated from model equations.

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 38th International Conference of Slovak Society of Chemical Engineering

ISBN

978-80-227-3503-2

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

293-300

Název nakladatele

Slovenská technická univezita v Bratislave

Místo vydání

Bratislava

Místo konání akce

Tatranské Matliare

Datum konání akce

23. 5. 2011

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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