Národní úložiště šedé literatury Nalezeno 28 záznamů.  1 - 10dalšíkonec  přejít na záznam: Hledání trvalo 0.01 vteřin. 
Comparison of Hexane Vapour Permeation Indifferent Membranes.
Sedláková, Zuzana ; Morávková, Lenka ; Vejražka, Jiří ; Izák, Pavel
The aim of this work was the VOC removal from a polluted air stream. The model mixture contained nitrogen saturated by various concentrations of hexane. The mixture was chosen as a representative binary mixture of the polluted air by gasoline vapours. The nitrogen represented the major component of air and hexane represented the gasoline vapours, respectively.
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Comparison of Membrane Materials for Biogas Purification.
Sedláková, Zuzana ; Kárászová, Magda ; Morávková, Lenka ; Vejražka, Jiří ; Izák, Pavel
The aim of this study is the comparison of different membrane material for biogas separation. The comparison is based on the both our experimental results and found literature data for the binary mixtures containing methane and carbon dioxide. The compared membrane materials cover both flat sheet membranes (ethylene-octene copolymer membranes, elastomeric block co-polyamide membranes, water swollen thin film composite membranes, ionic liquid membranes and mixed membrane matrix and hollow fibre modules (polyacrylonitrile PAN hollow fibre coated by Pebax.
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Pervaporation and Gas Separation with Supported Liquid Membranes.
Izák, Pavel ; Žák, Michal ; Sedláková, Zuzana ; Kárászová, Magda ; Kačírková, Marie ; Vejražka, Jiří
The goal of this work is to combine the recent developments in the field of membrane technology, e.g. supported liquid membranes, pervaporation and gas separation with the use of ionic liquids (ILs) for providing novel solutions in downstream processing or process intensification.
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Utilization of Catalytically Active Foams for Enhancing Energy Efficiency in Chemical Reactors.
Lali, Farzad
In the present study a tubular reactor that was packed with a Pd/Al2O3 foam packing with a length of 50 cm and a diameter of 1.8 cm. The hydrogenation of α-methylstyrene (AMS) to cumene was\nemployed for characterization of the reactor performance due to availability of literature data for other reactor types that facilitated a comparison.
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Effect of Colloidal Silica Dioxide on Rheological Properties of Common Pharmaceutical Excipients.
Majerová, D. ; Tran, D.T. ; Kulaviak, Lukáš ; Růžička, Marek ; Štěpánek, F. ; Zámostný, P.
In this work, the rheological properties of silicified microcrystalline cellulose and pregelatinized starch was investigated in comparison to the characteristics of pure excipients. At first, pure materials were analysed on scanning electron microscopy (SEM) to obtain their particle size distribution and particle shape. Also the rheological properties of all three substances were examined by the Freeman FT4 rheometer. The observed properties were in accordance with known characteristics and typical behaviour of the excipients.
Plný tet: SKMBT_C22016090211370 - Stáhnout plný textPDF
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Electro-Coagulation: A Step towards Chemical-Free Water Treatment.
Tito, Duarte Novaes ; Krystyník, Pavel ; Klusoň, Petr
This work will focus on presenting the principles of electro-coagulation, clarifying what are the key process parameters and demonstrating the applicability of the technology by showcasing large-scale case studies and process performance data.
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Supercritical Fractionation of Turmerones from Turmeric rhizomes by Sorption – Comparison of Different Types of Silica Gel.
Topiař, Martin ; Sajfrtová, Marie ; Sovová, Helena
Aim of this study was to find the optimal type of silica gel for the separation of turmerones from the turmeric SFE isolate and their concentration in eluted fractions.
Plný tet: SKMBT_C22016090211384 - Stáhnout plný textPDF
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