About: Microdevices for generation of two-phase and three-phase slug flows coupled with an enzyme reaction

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We developed slug-flow microfluidic systems for the enzyme hydrolysis of soybean oil. Because the enzyme, lipase, catalyzes various reactions at the water-oil interface, the use of well-defined slug flow microsystems can bring a promising alternative to classical systems. Two developed systems exploit biphasic oil-water slug flow formed in glass and teflon microcapillaries. The remaining system is able to generate stable three-phase slug flow nitrogen-(oil-water). Generation and characterization of the unique three-phase slug flow system are described in detail. It was found that the most stable oil-water slug flow can be realized by means of hydrophilic glass capillaries with the oil conversion about 30 % within 20 min. The highest triglyceride conversion (more than 40 % within 20 min) was attained in hydrophobic capillaries with instable two-phase slug flow. We identified the viscous stress to be the source of slug flow instabilities in the hydrophobic capillaries. The three-phase flow system produced regular segments of nitrogen separating small and regular oil-water emulsion compartments. In this system we obtained conversion about 35% within 20 min. We also mesured pressure drop in every type of microreactor. We developed slug-flow microfluidic systems for the enzyme hydrolysis of soybean oil. Because the enzyme, lipase, catalyzes various reactions at the water-oil interface, the use of well-defined slug flow microsystems can bring a promising alternative to classical systems. Two developed systems exploit biphasic oil-water slug flow formed in glass and teflon microcapillaries. The remaining system is able to generate stable three-phase slug flow nitrogen-(oil-water). Generation and characterization of the unique three-phase slug flow system are described in detail. It was found that the most stable oil-water slug flow can be realized by means of hydrophilic glass capillaries with the oil conversion about 30 % within 20 min. The highest triglyceride conversion (more than 40 % within 20 min) was attained in hydrophobic capillaries with instable two-phase slug flow. We identified the viscous stress to be the source of slug flow instabilities in the hydrophobic capillaries. The three-phase flow system produced regular segments of nitrogen separating small and regular oil-water emulsion compartments. In this system we obtained conversion about 35% within 20 min. We also mesured pressure drop in every type of microreactor. (en)
Title	Microdevices for generation of two-phase and three-phase slug flows coupled with an enzyme reaction Microdevices for generation of two-phase and three-phase slug flows coupled with an enzyme reaction (en)
skos:prefLabel	Microdevices for generation of two-phase and three-phase slug flows coupled with an enzyme reaction Microdevices for generation of two-phase and three-phase slug flows coupled with an enzyme reaction (en)
skos:notation	RIV/60461373:22340/13:43895787!RIV14-MSM-22340___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Čech, Jiří Přibyl, Michal Šnita, Dalimil
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	88160
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/13:43895787
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	frequency dependence; signal transmission; oscillatory flow; mathematical model (en)
http://linked.open.../riv/klicoveSlovo	mathematical model frequency dependence oscillatory flow signal transmission
http://linked.open...ontrolniKodProRIV	[78CBB0736224]
http://linked.open...v/mistoKonaniAkce	Tatranské Matliare
http://linked.open...i/riv/mistoVydani	Bratislava
http://linked.open...i/riv/nazevZdroje	Proceedings of the 40th International Conference of Slovak Society of Chemical Engineering
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Šnita, Dalimil Přibyl, Michal Čech, Jiří
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-05-27 (xsd:date)
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Slovak Society of Chemical Engineering
https://schema.org/isbn	978-80-89475-09-4
http://localhost/t...ganizacniJednotka	22340

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