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National Repository of Grey Literature 5 records found  Search took 0.00 seconds. 
Evaluation of High-Pressure Vapour-Liquid Equilibrium Data by Means of Gnostic Theory
 Wagner, Zdeněk
This article deals with evaluation of high-pressure vapour-liquid equilibrium data by means of gnostic theory.
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Evaluation of Extraction Curves Obtained by Supercritical Fluid Extraction from Plant Materials
 Sovová, Helena
Evaluation of extraction curves is based on modelling the extraction process. Various models have been published and used to evaluate experimental data in the last years. A combined model, closely related to the results of ReverchonŽs research group, is presented in this study. Dimensionless form of the model is solved by numerical integration and also analytical approximative solutions are presented. Experimental extraction curves from the literature were analysed using the model for supercritical fluid extraction of both essential oils and fatty oils.
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Modelling of the Nitrogen and Carbon Dioxide Solubility in Alternative Fuels at High Pressures Using Soave-Redlich-Kwong Equation of State
 Teodorescu, M. ; Wichterle, Ivan
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Extrakce šalvějové silice: srovnání hydrodestilace a extrakce superkritickým CO2
 Aleksovski, S. ; Sovová, Helena ; Poposka, F.
Both separation processes, the hydrodistillation and the supercritical fluid extraction, were simulated with phenomenological models and model parameters were envaluated from experimental data.
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Interakce mezi extrahovanými látkami a mezi extrahovanou látkou a matricí při superkritické extrakci z rostlin
 Sovová, Helena ; Sajfrtová, Marie ; Opletal, L. ; Bártlová, Milena
The present study is focused on the solubility of solutes during their extraction from plants, which is affected by vegetable matrix and co-extracted substances and therefore it may substantially differ from the solubility of pure solutes in CO2.
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