Search Results - "Petr Koci"

Impact of mild hydrothermal aging on kinetics of NH 3 , NO, SO 2 and CO oxidation reactions on Cu/SSZ-13 catalyst by Zheleznyak, Tetyana, Kočí, Petr, Epling, William

Get full text

CO and hydrocarbon light-off inhibition by pre-adsorbed NOx on Pt/CeO2/Al2O3 and Pd/CeO2/Al2O3 diesel oxidation catalysts by Boutikos, Panagiotis, Žák, Adrián, Kočí, Petr

“…[Display omitted] •Inhibition by pre-adsorbed NOx affects CO and hydrocarbon light-off on diesel oxidation catalyst.•Due to the inhibition, the CO and C3H6…”
Get full text

Effective Model of NOx Adsorption and Desorption on PtPd/CeO2-ZrO2 Passive NOx Adsorber by Kvasničková, Anežka, Kočí, Petr, Ji, Yaying, Crocker, Mark

“…An effective model for describing NO x adsorption and desorption on a PtPd/CeO 2 -ZrO 2 passive NO x adsorber is presented. The kinetic parameters are…”
Get full text

Hybrid fictitious domain-immersed boundary solver coupled with discrete element method for simulations of flows laden with arbitrarily-shaped particles by Isoz, Martin, Šourek, Martin Kotouč, Studeník, Ondřej, Kočí, Petr

“…Particle-laden flows are commonly encountered in numerous engineering applications, e.g. fluidization, crystallization, granulation, drying, catalytic…”
Get full text

Effective modeling of coupled reaction and transport inside the catalytic filter wall by Němec, Jan, Plachá, Marie, Kočí, Petr

“…A new extension of 1D mathematical model describing diffusion limitation in a catalytic filter wall is proposed. Transport limitations in the flowing gas…”
Get full text

Impact of diffusion limitations inside the wall of catalytic filters on conversion of gaseous pollutants at increased flow rates by Pečinka, Rudolf, Blažek, Miroslav, Knopp, Richard, Kočí, Petr, York, Andrew

“…•Diffusion-limited conversion of gas in catalytic filters studied experimentally.•Several filters coated with Pt/Al2O3, using different catalyst distributions…”
Get full text

Balanced Fast-SpaciMS capillary configurations provide practically noninvasive channel-average measurements in catalytic monoliths by Hlavatý, Tomáš, Kočí, Petr, Isoz, Martin, Deka, Dhruba, Partridge, William

“…Spatially resolved capillary-inlet mass spectrometry (SpaciMS) provides a detailed picture of the spatiotemporal evolution of reaction network in catalytic…”
Get full text

Global kinetic model of NO oxidation on Pd/γ-Al2O3 catalyst including PdOx formation and reduction by CO and C3H6 by Buzková Arvajová, Adéla, Boutikos, Panagiotis, Pečinka, Rudolf, Kočí, Petr

“…[Display omitted] •PdOx formation affects NO oxidation rate on Pd/Al2O3 diesel oxidation catalyst (DOC).•NO2 yield gradually decreases with the growing PdOx…”
Get full text

Multiscale Modeling and Analysis of Pressure Drop Contributions in Catalytic Filters by Leskovjan, Martin, Němec, Jan, Plachá, Marie, Kočí, Petr, Isoz, Martin, Svoboda, Miloš, Novák, Vladimír, Price, Emily, Thompsett, David

“…Catalytic monolith filters with a honeycomb structure represent a key component of modern automotive exhaust gas aftertreatment systems. In this paper, we…”
Get full text

Impact of PtOx formation in diesel oxidation catalyst on NO2 yield during driving cycles by Arvajová, Adéla, Kočí, Petr

“…Operation of a platinum-based diesel oxidation catalyst under lean conditions leads to the partial transformation of metallic Pt sites into platinum oxides…”
Get full text

Simulation of diesel exhaust aftertreatment system DOC—pipe—SCR: The effects of Pt loading, PtOx formation and pipe configuration on the deNOx performance by Leskovjan, Martin, Kočí, Petr, Maunula, Teuvo

“…•DOC-pipe-SCR diesel exhaust aftertreatment system was simulated.•SCR model was calibrated and validated using engine test data.•Parametric simulation study of…”
Get full text

Pore-scale filtration model for coated catalytic filters in automotive exhaust gas aftertreatment by Plachá, Marie, Kočí, Petr, Isoz, Martin, Svoboda, Miloš, Price, Emily, Thompsett, David, Kallis, Kyriakos, Tsolakis, Athanasios

“…•Catalytic filters with in-wall, on-wall and combined washcoat distribution are compared.•Pore-scale filtration model is developed for 3D microstructures…”
Get full text

The impact of CO and C3H6 pulses on PtOx reduction and NO oxidation in a diesel oxidation catalyst by Arvajová, Adéla, Kočí, Petr, Schmeißer, Volker, Weibel, Michel

“…[Display omitted] •Pt/Al2O3 catalyst deactivation due to PtOx and reactivation during NO oxidation.•Isothermal and temperature ramp experiments with inverse…”
Get full text

Washcoating of catalytic particulate filters studied by time-resolved X–ray tomography by Blažek, Miroslav, Žalud, Milan, Kočí, Petr, York, Andrew, Schlepütz, Christian M., Stampanoni, Marco, Novák, Vladimír

“…•New application of time-resolved XRT imaging to washcoating of catalytic filters.•Catalyst layer shrinking and cracking during drying depends on particle size…”
Get full text

Particle accumulation model in 3D reconstructed wall of a catalytic filter validated with time-resolved X-ray tomography by Plachá, Marie, Isoz, Martin, Kočí, Petr, Jones, Matthew P., Svoboda, Miloš, Eastwood, David S., York, Andrew P.E.

“…A transient pore-scale model of particle deposit formation in 3D microstructure of a catalytic filter wall is introduced. It predicts location of particle…”
Get full text

3D reconstruction and pore-scale modeling of coated catalytic filters for automotive exhaust gas aftertreatment by Kočí, Petr, Isoz, Martin, Plachá, Marie, Arvajová, Adéla, Václavík, Marek, Svoboda, Miloš, Price, Emily, Novák, Vladimír, Thompsett, David

“…[Display omitted] •3D distribution of catalytic coating in porous filter wall imaged by XRT.•Three samples with different coating profile: on wall, in wall,…”
Get full text

Viscosity prediction for dense suspensions of non-spherical particles based on CFD-DEM simulations by Kotouč Šourek, Martin, Studeník, Ondřej, Isoz, Martin, Kočí, Petr, York, Andrew P.E.

“…Reliable estimation of the viscosity and rheology of dense suspensions formed from non-spherical particles is of high importance for studies of many natural…”
Get full text

Comparison of O2 and NO2 impact on PtOx and PdOx formation in diesel oxidation catalysts and their reduction by CO and C3H6 pulses by Boutikos, Panagiotis, Březina, Jan, Buzková Arvajová, Adéla, Kočí, Petr

“…•PtOx and PdOx formation deteriorates NO oxidation activity of Pt/Al2O3 and Pd/Al2O3 catalysts.•Impact of O2 and NO2 on PtOx and PdOx formation compared in…”
Get full text

Modeling of two-step CO oxidation light-off on Pt/γ-Al2O3 in the presence of C3H6 and NOx by Buzková Arvajová, Adéla, Březina, Jan, Pečinka, Rudolf, Kočí, Petr

“…[Display omitted] •Dual CO light-off effect on Pt/Al2O3 catalyst in presence of propylene was studied.•CO conversion may decrease with temperature in a certain…”
Get full text

New operation strategy for driving the selectivity of NOx reduction to N2, NH3 or N2O during lean/rich cycling of a lean NOx trap catalyst by Mráček, David, Kočí, Petr, Choi, Jae-Soon, Partridge, William P.

“…[Display omitted] •Developed novel operating strategy for LNT catalyst regeneration.•Slightly lean transition phase inserted between rich and fully…”
Get full text