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  • Monolitické adsorbenty jsou vhodné pro pressure-swing adsorpci vzhledem k malé ztrátě tlaku a vzhledem k jejich mechanické stabilitě. V práci uvažujeme monolitický adsorbent skládající se z mikro-porézníc částic zeolitu fixovaných v polyamidové matrici. V čertvě extrudovaném monolitu je potřeba vytvořit sekundární póry v polyamidové matrici tak, aby se zajistil přístup adsorbobaných látek k částicím zeolitů. V článku popisujeme vyvinutý matematický model, který umožňuje simulaci utváření sekundární makro-porézní struktury. Tento model je založen na Metodě diskrétních elementů (DEM). Systematické parametrické studie nám umožňují pochopit vliv procesních parametrů a počáteční distribuce fází polyamidu a vosku na konečnou morfologii monolitického adsorbentu. (cs)
  • Monolithic adsorbent structures are of interest in pressure-swing adsorption due to its low pressure drop and mechanical stability in order to prevent attrition. We consider a monolithic adsorbent consisting of micro-porous zeolite particles embedded in a polyamide matrix. After the extrusion of a zeolite filled polyamide matrix a secondary structure of transport pores has to be formed in the polyamide phase to allow fast mass transport of the adsorbate to the zeolite particles. Here we develop a proof-of-the-concept mathematical model to describe the generation of the macro-porous structure in a zeolite-polyamide-wax system. The mathematical model is based on the discrete element method (DEM). We demonstrate that the problem of evolution of a complex morphology can be modeled by the DEM model. Systematic parametric studies provide us with the qualitative guidance on the effects of processing parameters and the initial distribution of polyamide and wax phases on the final morphology of the monolithic
  • Monolithic adsorbent structures are of interest in pressure-swing adsorption due to its low pressure drop and mechanical stability in order to prevent attrition. We consider a monolithic adsorbent consisting of micro-porous zeolite particles embedded in a polyamide matrix. After the extrusion of a zeolite filled polyamide matrix a secondary structure of transport pores has to be formed in the polyamide phase to allow fast mass transport of the adsorbate to the zeolite particles. Here we develop a proof-of-the-concept mathematical model to describe the generation of the macro-porous structure in a zeolite-polyamide-wax system. The mathematical model is based on the discrete element method (DEM). We demonstrate that the problem of evolution of a complex morphology can be modeled by the DEM model. Systematic parametric studies provide us with the qualitative guidance on the effects of processing parameters and the initial distribution of polyamide and wax phases on the final morphology of the monolithic (en)
Title
  • Mathematical modeling of the generation of the secondary porous structure in a monolithic adsorbent
  • Mathematical modeling of the generation of the secondary porous structure in a monolithic adsorbent (en)
  • Matematické modelování utváření sekundární porézní struktury v monolitickém adsorbentu (cs)
skos:prefLabel
  • Mathematical modeling of the generation of the secondary porous structure in a monolithic adsorbent
  • Mathematical modeling of the generation of the secondary porous structure in a monolithic adsorbent (en)
  • Matematické modelování utváření sekundární porézní struktury v monolitickém adsorbentu (cs)
skos:notation
  • RIV/60461373:22340/08:00021345!RIV09-GA0-22340___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA104/07/1127)
http://linked.open...iv/cisloPeriodika
  • 1-3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 377991
http://linked.open...ai/riv/idVysledku
  • RIV/60461373:22340/08:00021345
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Monolithic adsorbent; Generation of porous structure; Discrete element method (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV
  • [35DEB59F4ADA]
http://linked.open...i/riv/nazevZdroje
  • Chemical Engineering Journal
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 140
http://linked.open...iv/tvurceVysledku
  • Kosek, Juraj
  • Ledvinková Roz.horáčková, Blanka
  • Keller, F.
  • Nieken, U.
http://linked.open...ain/vavai/riv/wos
  • 000257260800062
issn
  • 1385-8947
number of pages
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  • 22340
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