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Description
  • Matematický model místních reakčních a přenosových jevů v porésním katalysátoru je využit pro vyhodnocení vnitřních koncentračních a teplotních gradientů. Počítačová rekonstrukce katalyzátoru vychází z rozboru snímků získaných pomocí elektronových mikroskopů SEM a TEM. Metodika je předvedena pro oxidaci CO na Pt/γ-Al2O3. Je provedena parametrická studie pro různé rozměry částic γ-Al2O3, jejich směsné poměry a úrovně slinutí. Výsledky ukazují lokální optima faktoru účinnosti. (cs)
  • Mathematical model of local reaction and transport processes in a porous catalyst with bimodal pore-size distribution is used for the evaluation of internal concentration and temperature gradients. Methods of digital reconstruction, based on the analysis of electron microscope images (SEM and TEM) are employed. The methodology is demonstrated on CO oxidation on Pt/γ-Al2O3. Parametric study is performed for different γ-Al2O3 particles sizes, mixing ratios and levels of sintering, and local optima of effectiveness factor are found.
  • Mathematical model of local reaction and transport processes in a porous catalyst with bimodal pore-size distribution is used for the evaluation of internal concentration and temperature gradients. Methods of digital reconstruction, based on the analysis of electron microscope images (SEM and TEM) are employed. The methodology is demonstrated on CO oxidation on Pt/γ-Al2O3. Parametric study is performed for different γ-Al2O3 particles sizes, mixing ratios and levels of sintering, and local optima of effectiveness factor are found. (en)
Title
  • Modelling of micro/nano-scale concentration and temperature gradients in porous supported catalysts
  • Modelling of micro/nano-scale concentration and temperature gradients in porous supported catalysts (en)
  • Modelování koncentračních a teplotních gradientů v porésních katalysátorech na mikro-/nano- úrovni (cs)
skos:prefLabel
  • Modelling of micro/nano-scale concentration and temperature gradients in porous supported catalysts
  • Modelling of micro/nano-scale concentration and temperature gradients in porous supported catalysts (en)
  • Modelování koncentračních a teplotních gradientů v porésních katalysátorech na mikro-/nano- úrovni (cs)
skos:notation
  • RIV/60461373:22340/07:00018413!RIV08-MSM-22340___
http://linked.open.../vavai/riv/strany
  • 5380-5385
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA104/05/2616), P(GP104/06/P301), Z(MSM6046137306)
http://linked.open...iv/cisloPeriodika
  • 62
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
  • 434416
http://linked.open...ai/riv/idVysledku
  • RIV/60461373:22340/07:00018413
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • porous structure; reaction and transport; mathematical modelling; optimisation; Pt/γ-Al2O3 catalyst; CO oxidation (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • IE - Irsko
http://linked.open...ontrolniKodProRIV
  • [94FEF2C4C0D0]
http://linked.open...i/riv/nazevZdroje
  • Chemical Engineering Science
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
  • 18-20
http://linked.open...iv/tvurceVysledku
  • Kočí, Petr
  • Štěpánek, František
  • Kubíček, Milan
  • Marek, Miloš
http://linked.open...n/vavai/riv/zamer
issn
  • 0009-2509
number of pages
http://localhost/t...ganizacniJednotka
  • 22340
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