Effect of Rapeseed Straw Composition upon Washing Efficiency of Soda Pulp
Konferenční objektOmezený přístuppeer-reviewedpostprintDatum publikování
2016
Vedoucí práce
Oponent
Název časopisu
Název svazku
Vydavatel
Technická univerzita vo Zvolene
Abstrakt
The aim of this work was to investigate the displacement washing process of soda pulp cooked from rapeseed straw containing stalks and silique valves. Displacement washing process was described by breakthrough washing curves recorded for alkali lignin like a tracer. Mathematical treatment of the washing curves, which were obtained as a response to the step input signal, gave the dimensionless number known as the Péclet number characterizing the displacement of lignin from the pulp pad. For detailed description of displacement washing process, further parameters, such as the traditional wash yield, as well as time parameters, were also evaluated. The preliminary results obtained showed that, similarly as for kraft hardwood fibres, the wash yield determined for soda rapeseed pulp was found to be lower than that for non-porous incompressible particles. The differences between the mean residence time of alkali lignin and holding time of the wash liquid in the bed were greater for soda pulp cooked from stalks only in comparison with the soda pulp cooked from a blend of stalks and silique valves.
Rozsah stran
p. 1-12
ISSN
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Projekt
SGS_2016_011/Syntéza a studium makromolekulárních a nadmolekulárních struktur materiálů pro high tech aplikace
Zdrojový dokument
ŠVOČ 57 : 57th International Student´s Scientific Conference
Vydavatelská verze
Přístup k e-verzi
Pouze v rámci univerzity
Název akce
57th International Student´s Scientific Conference (03.05.2016 - 03.05.2016)
ISBN
978-80-228-2858-1
Studijní obor
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Klíčová slova
displacement washing, soda rapeseed pulp, wash yield, time parameters, vytěsňovací praní, natronová řepková buničina, prací výtěžek, časové parametry