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Evaluation of absorption kinetic of water and essential oils vapours by lignocellulosic material
Year: 2015
Type of publication: článek ve sborníku
Name of source: Proceedings of the XI. International Symposium "Selected Processes at the Wood Processing“
Publisher name: Technická univerzita vo Zvolene
Place: Zvolen
Page from-to: 121-131
Titles:
Language Name Abstract Keywords
cze Hodnocení kinetiky absorpce par vody a esenciálních olejů u lignocelulózových materiálů Práce se zabývá směsnou absorpcí par vody a esenciálních olejů do lignocelulózových materiálů a studiem její kinetiky gravimetrickou metodikou. Je zde navrženo vyhodnocení podílů zkondenzovaných par vody a par esenciálního oleje v pórech lignocelulózového materiálu z celkového množství zkondenzovaných par. lignocelulózové materiály; esenciální oleje; pórovité materiály; absorpce par
eng Evaluation of absorption kinetic of water and essential oils vapours by lignocellulosic material Competitive absorption process, i.e. condensation, of water and essential oils (EO) are predominantly controlled by extent of condensation of diffusing water and EO molecules with marginal influence of porous lignocellulosic matter and a sort of EO. With increase of absorption the diffusion is depressed and vice versa. Diffusion of water molecules through porous system is usually slower in comparison with other molecules. It was discovered, a presence of EO decreases paper web humidity with increasing influence in environment with high relative air humidity. Evaluation of measured values using mathematical growth models, offers an infinite number of solutions for the ratio of water vapour and EO vapour absorption capacities, which in total gives the overall measured absorption capacity. It is necessary to find the right solution. One possibility is e.g. the measurement of water content in the sample after the experiment, or using the methodology described in this paper. lingocellulosic materials; essential oils; porous materials; vapour absorption

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