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Description
| - V chemickém průmyslu v separačních a katalytických procesech je rozšířené použití zeolitů. Pro optimalizaci a vývoj průmyslových aplikací zeolitů je nezbytné důkladné porozumění transportu hmoty. Transport a sorpce lehkých uhlovodíků (propan, n-butan, iso-butan) v zeolitech ZSM-5 byly studovány metodou TEOM (Tapered Element Oscillating Microbalance). TEOM může být použito nejen pro měření ustáleného stavu, ale i pro neustálené měření adsorpce a desorpce. Pro odhad difuzních koeficientů (fitováním experimentálních dat) byl vyvinut matematický model sorpce s difuzí do částice. Model se skládá z rovnic kontinuity, které ústí v systém parciálních diferenciálních a obyčejných diferenciálních rovnic. Pro řešení bylo použito metody přímek aplikované na finitní element ortogonální kolokace. Výpočty byly provedeny v programu gPROMS. Byly vyvinuty různé modely, které byly porovnány s experimentálními daty. Nejlépe vyhovující model byl použit k odhadu parametrů. Adsorpční entalpie a adsorbované množství při n (cs)
- Zeolite materials are widely used in separation and catalytic processes in chemical industry. An understanding of mass transfer is needed in the optimization and development of the industrial applications of the zeolites. The experimental measurements of diffusion and sorption characteristics in zeolites show a lack of consistency of results obtained using the different techniques. Transport and sorption of light hydrocarbons (propane, n-butane, isobutane) in the zeolite ZSM-5 was examined by the tapered element oscillating microbalance (TEOM). Within the TEOM the mass change of a vibrating tube, caused due to the adsorption of a gas on a zeolite sample, is determined by frequency measurements. The TEOM can be used not only for steady measurements, from which the total amount adsorbed at particular condition can be obtained, but also for transient uptake and desorption measurements, from which is possible to get the diffusivities. The mathematical model of the sorption with the diffusion into the p
- Zeolite materials are widely used in separation and catalytic processes in chemical industry. An understanding of mass transfer is needed in the optimization and development of the industrial applications of the zeolites. The experimental measurements of diffusion and sorption characteristics in zeolites show a lack of consistency of results obtained using the different techniques. Transport and sorption of light hydrocarbons (propane, n-butane, isobutane) in the zeolite ZSM-5 was examined by the tapered element oscillating microbalance (TEOM). Within the TEOM the mass change of a vibrating tube, caused due to the adsorption of a gas on a zeolite sample, is determined by frequency measurements. The TEOM can be used not only for steady measurements, from which the total amount adsorbed at particular condition can be obtained, but also for transient uptake and desorption measurements, from which is possible to get the diffusivities. The mathematical model of the sorption with the diffusion into the p (en)
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Title
| - Mass transfer of light hydrocarbons in ZSM-5 zeolites - TEOM experiments and modeling
- Mass transfer of light hydrocarbons in ZSM-5 zeolites - TEOM experiments and modeling (en)
- Transport lehkých uhlovodíků v zeolitech ZSM-5 studovaný pomocí TEOM (experimenty a modelování) (cs)
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skos:prefLabel
| - Mass transfer of light hydrocarbons in ZSM-5 zeolites - TEOM experiments and modeling
- Mass transfer of light hydrocarbons in ZSM-5 zeolites - TEOM experiments and modeling (en)
- Transport lehkých uhlovodíků v zeolitech ZSM-5 studovaný pomocí TEOM (experimenty a modelování) (cs)
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skos:notation
| - RIV/60461373:22310/06:00016936!RIV07-MSM-22310___
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GD203/03/H140), Z(MSM6046137301)
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22310/06:00016936
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - transport; diffusion; sorption; modeling; zeolites; ZSM-5; TEOM; light hydrocarbons (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - Sborník 17th International Congress of Chemical and Process Engineering
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Bernauer, Bohumil
- Skleničková, Petra
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http://linked.open...n/vavai/riv/zamer
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number of pages
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http://purl.org/ne...btex#hasPublisher
| - Czech Society of Chemical Engineering
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https://schema.org/isbn
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http://localhost/t...ganizacniJednotka
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