National Repository of Grey Literature 6 records found  Search took 0.00 seconds. 
Decomposition OF 17α-Ethynylestradiol by Photocatalytic Process on Titanium Dioxide Catalyst.
Spáčilová, Markéta ; Spáčilová, Lucie ; Šolcová, Olga
This study is focused on decomposition of the harmful compound, 17α-ethynylestradiol (EE2), which belongs to the group of hormones called estrones. They are compounds with similar structure as estrogen and they have a similar effect on a hormonal system. The group of estrones covers estron, 17β-estradiol, estriol and 17α-ethynylestradiol. \n
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Plný tet: Spáčilová abstrakt - Download fulltextDOCX
Usability of Extraction Techniques for Practical Applications.
Rousková, Milena ; Šabata, Stanislav ; Maléterová, Ywetta ; Hanika, Jiří ; Šolcová, Olga ; Stránská, M. ; Kaštánek, P. ; Bárnet, M. ; Svátek, A.
The aim of the study was the development of extraction procedures for the isolation of carotenoids, especially lutein, from medicinal plants (Calendula officinalis, Tagetes sp.), the obtaining of fragrances from Magnolia × pruhoniciana blooms, or the separation of waxes from Miscanthus sp. stalks.\n
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Plný tet: rouskova_extrakce_abstrakt-v1 - Download fulltextDOCX
Acidic Hydrolysis of Waste Feather Biomass - Processes Scale-Up.
Hanika, Jiří ; Rousková, Milena ; Šolcová, Olga ; Šabata, Stanislav ; Jírů, M. ; Hůrková, K.
The paper present novel data on acidic hydrolysis of waste chicken feathersin presence of water solution containing carboxylic acid catalyst with the pKa value lower than 4, instirred batch reactors, in the temperature range from 114°Cto 150°C and at the pertinent vapour pressure of reaction mixture.The process was scaled-up from laboratory bench scale to pilot plant dimensions using batch high pressure autoclaves. Process conditions were applied according to patent application1. Knowledge of kinetic aspects of the featherhydrolysis and process parameters operation window are inevitable for asuccessful process scale up2,3.
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Plný tet: ICCT_2019 ACIDIC HYDROLYSIS OF WASTE FEATHER BIOMASS - Download fulltextDOCX
Influence of Surface Treatment of Thin-Film Composite Membrane on Separation of Carbon Dioxide from Biogas.
Morávková, Lenka ; Kárászová, Magda ; Petrusová, Zuzana ; Izák, Pavel
The effect of the various wetting procedure on the membrane performance was studied [1]. Spraying is clearly more efficient than spreading water on the top of the membrane with a brush and results in higher methane purity. Spraying ensures a more uniform distribution of the water on the skin layer of the membrane, leading to much higher CO2 permeation through the membrane and higher CH4 content in the retentate stream.
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Plný tet: Moravkova_ICCT_2019 - Download fulltextDOCX
The Influence of Surface Treatment and Activation of Thin Film Composite Membranes with Plasma Discharge and Determination of Their Physicochemical Properties.
Slepička, P. ; Setničková, Kateřina ; Petrusová, Zuzana ; Slepičková-Kasálková, N. ; Kolská, Z. ; Siegel, J. ; Jansen, J. C. ; Esposito, E. ; Fuoco, A. ; Švorčík, V. ; Izák, Pavel
In this work we have focused on the surface treatment and activation of membranes (73 AC and 82 V) with plasma discharge and determination of their physicochemical properties. The surface morphology, wettability, zeta potential of pristine and plasma- treated membranes were tested and compared.
Direct Decomposition of NO Over Co-Mn-Al Mixed Oxides: Effect of Ce and/or K Promotors.
Jirátová, Květa ; Pacultová, K. ; Karásková, K. ; Balabánová, Jana ; Klegová, A. ; Obalová, L.
In this contribution, the effect of K and/or Ce on activity of Co-Mn-Al mixed oxides was stud-ied, as presence of Ce could increase mobility of oxygen in the transition metals oxides.\n

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