Washing of Soda Pulp from Rapeseed Straw

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

Washing of Soda Pulp from Rapeseed Straw

Popis výsledku v původním jazyce

The aim of this work was to investigate the displacement washing process of soda pulp cooked from rapeseed straw. Displacement washing process was described by displacement washing curves recorded for alkali lignin like a tracer. The shape of the washingcurves obtained experimentally indicated that the displacement of black liquor was non-ideal, i. e., it was between the ideal limits of plug flow and perfectly mixed flow. Mathematical treatment of the washing curves, which were obtained as a response to the step input signal, gave a dimensionless criterion known as the Péclet number characterizing the displacement of lignin from the pulp pad. The preliminary results obtained showed that the differences in intrinsic properties between soda rapeseed andkraft wood fibres have an impact on the displacement washing of soda pulp. Similarly as for kraft softwood and hardwood fibres, the wash yield determined for soda rapeseed pulp was found to be lower than that for non-porous incompressibl

Název v anglickém jazyce

Washing of Soda Pulp from Rapeseed Straw

Popis výsledku anglicky

The aim of this work was to investigate the displacement washing process of soda pulp cooked from rapeseed straw. Displacement washing process was described by displacement washing curves recorded for alkali lignin like a tracer. The shape of the washingcurves obtained experimentally indicated that the displacement of black liquor was non-ideal, i. e., it was between the ideal limits of plug flow and perfectly mixed flow. Mathematical treatment of the washing curves, which were obtained as a response to the step input signal, gave a dimensionless criterion known as the Péclet number characterizing the displacement of lignin from the pulp pad. The preliminary results obtained showed that the differences in intrinsic properties between soda rapeseed andkraft wood fibres have an impact on the displacement washing of soda pulp. Similarly as for kraft softwood and hardwood fibres, the wash yield determined for soda rapeseed pulp was found to be lower than that for non-porous incompressibl

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 3rd International Conference on Chemical Technology

ISBN

978-80-86238-79-1

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

290-295

Název nakladatele

Česká společnost průmyslové chemie

Místo vydání

Praha

Místo konání akce

Mikulov

Datum konání akce

13. 4. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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