| Attributes | Values |
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| rdf:type
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| Description
| - Transport monomerů a zřeďovadel v porézních částicích polyolefinů rostoucích v plynně-disperzních reaktorech ovlivňuje rychlost polymerace, rychlost růstu částice, distribuci složení kopolymeru v částici a odplynění částic polyolefinů. V příspěvku popisujeme vyvinutý software umožňující predikovat transport monomeru a dalších složek ze známé prostorově 3D struktury částic polyolefinů. K získání 3D struktury byly využity dva přístupy: (i) koncept virtuální diageneze, (ii) rekonstrukce ze snímků rentgenového tomografu. V rekonstruovaném porézním prostředí je řešena jak ustálená, tak i dynamická difuze. Difuze monomeru přitom probíhá jak v pórech, tak i v polymerní fázi. (cs)
- Transport of monomers and diluents in porous polyolefin particles growing in gas-dispersion reactors affects the rate of polymerization, the rate of particle growth, the distribution of copolymer composition in the particle and the degassing of polyolefin powder. In this study we contribute to the development of the methodology capable to predict transport of monomers and other species from the known or assumed spatially 3D structure of polyolefin particles. Two different approaches are employed to obtain the spatially 3D structure of the computational domain. First, the concept of the virtual diagenesis enables us to generate various morphologies of polyolefin particles. In the second approach, several polyethylene particles are digitally reconstructed from X-ray micro-CT (computed tomography) images. We solve both the steady-state and the dynamic diffusion taking place in spatially 3D structure of polyolefin particles. Diffusion transport is considered to take place both in particle pores and in the
- Transport of monomers and diluents in porous polyolefin particles growing in gas-dispersion reactors affects the rate of polymerization, the rate of particle growth, the distribution of copolymer composition in the particle and the degassing of polyolefin powder. In this study we contribute to the development of the methodology capable to predict transport of monomers and other species from the known or assumed spatially 3D structure of polyolefin particles. Two different approaches are employed to obtain the spatially 3D structure of the computational domain. First, the concept of the virtual diagenesis enables us to generate various morphologies of polyolefin particles. In the second approach, several polyethylene particles are digitally reconstructed from X-ray micro-CT (computed tomography) images. We solve both the steady-state and the dynamic diffusion taking place in spatially 3D structure of polyolefin particles. Diffusion transport is considered to take place both in particle pores and in the (en)
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| Title
| - Modeling of transport and reaction in reconstructed polyolefin particles
- Modelování transportu a reakcí v rekonstruovaných částicích polyolefinů (cs)
- Modeling of transport and reaction in reconstructed polyolefin particles (en)
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| skos:prefLabel
| - Modeling of transport and reaction in reconstructed polyolefin particles
- Modelování transportu a reakcí v rekonstruovaných částicích polyolefinů (cs)
- Modeling of transport and reaction in reconstructed polyolefin particles (en)
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| skos:notation
| - RIV/60461373:22340/07:00018463!RIV08-MSM-22340___
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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(GA104/07/1127), Z(MSM6046137306)
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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/60461373:22340/07:00018463
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - reconstructed porous media; rentgen microtomography; polyolefins; effective diffusivity; degassing (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...v/mistoKonaniAkce
| - Tatranské Matliare, Slovakia
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - Proceedings of 34th International Conference of Slovak Society of Chemical Engineering, 21.-25.5.2007, Tatranské Matliare, Slovenská republika
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| http://linked.open...in/vavai/riv/obor
| |
| 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
| |
| http://linked.open...iv/tvurceVysledku
| |
| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| http://linked.open...n/vavai/riv/zamer
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| - Slovenská společnost chemického inženýrství
|
| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
| |
| is http://linked.open...avai/riv/vysledek
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