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Komplexní geochemický výzkum interakcí a migrací organických a anorganických látek v horninovém prostředí: Průběh hydrodynamických zkoušek na vrtech PTP3 a PTP4 na lokalitě Potůčky - Podlesí
Stavební geologie Geotechnika, a.s. ; Český ekologický ústav, Praha ; Klepáč, L. ; Záruba, J. ; Rukavičková, L
Popis terénních prací na obou vrtech - dokončení vodních tlakových zkoušek v průběhu vrtání na vrtu PTP-3, instalace multipakrového systému a následný monitoring tlaků v jednotlivých etážích na vrtu PTP-3, vodní tlakové zkoušky v průběhu vrtání na později zhavarovaném vrtu PTP-4, hydrodynamické zkoušky v průběhu vrtání, dlouhodobé hydrodynamické zkoušky, stopovací zkoušky.
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Separation of Carbon Dioxide from Methane by Ionic Liquid Membrane
Kárászová, Magda ; Izák, Pavel
Work deals with ionic liquid membranes for separation of carbon dioxide and methane. Main advantage of ionic liquid is negligible vapor pressure and low chemical reactivity. [1]. Selectivity of liquid membranes is given by different solubility of separated gases in chosen liquid. Carbon dioxide is twenty times more soluble in used ionic liquid than methane. Membrane used for separation consisted of porous PVDF and ionic liquid [emim][Tf2N]. Permeability of pure gases and model mixtures through the membrane was tested. Ideal selectivity of the membranes for CO2/CH4 mixture was found to be 22. Permeability of pure gases does was only about 10% higher than permeability of mixed gases. The membrane may be applied for purification of biogas.
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Purification of Biogas by Means of Membranes
Poloncarzová, Magda ; Vejražka, Jiří ; Izák, Pavel
The aim of this work is to find a way to lower carbon dioxide concentration in biogas and to purify it from undesirable gases by means of membrane. Ideally only one or two steps should be used to make the technology feasible and profitable. Liquid membranes are used because of their high selectivity and good permeability. Successful biogas purification method would open new opportunities in ecological fuels, especially if the methane content in biogas reached more than 95%; biogas could then replace the natural gas. In this work, a new supported ionic liquid has been tested and the first results have been obtained. Sweeping gas permeation was performed with model mixture of CO2 and CH4 1:1.
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