Catalyst Particle Porosity Effect upon Flameless Combustion Characteristics

The problem of heat and mass transfer of a porous catalyst particle is considered. On the her surface, including the inner surface of the pores, an irreversibly heterogeneous first-order reaction proceeds. It has been analytically shown that in a heated gas mixture, the catalyst's porosity redu...

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Main Authors: V. V. Kalinchak, A. S. Chernenko, A. F. Fedorenko, A. N. Sofronkov, V. V. Kramarenko
Format: Article
Language:English
Published: Vasyl Stefanyk Precarpathian National University 2020-03-01
Series:Фізика і хімія твердого тіла
Subjects:
Online Access:https://journals.pnu.edu.ua/index.php/pcss/article/view/2996
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author V. V. Kalinchak
A. S. Chernenko
A. F. Fedorenko
A. N. Sofronkov
V. V. Kramarenko
author_facet V. V. Kalinchak
A. S. Chernenko
A. F. Fedorenko
A. N. Sofronkov
V. V. Kramarenko
author_sort V. V. Kalinchak
collection DOAJ
description The problem of heat and mass transfer of a porous catalyst particle is considered. On the her surface, including the inner surface of the pores, an irreversibly heterogeneous first-order reaction proceeds. It has been analytically shown that in a heated gas mixture, the catalyst's porosity reduces the minimum impurity's concentration of catalytic spontaneous combustion in the mixture and increases the catalyst particle's corresponding diameter. This concentration corresponds to the external kinetic and internal diffusion reaction's modes.
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spelling doaj.art-c492dbbef87c43b3a6147ced83c7f40f2022-12-21T23:35:44ZengVasyl Stefanyk Precarpathian National UniversityФізика і хімія твердого тіла1729-44282309-85892020-03-0121112413110.15330/pcss.21.1.124-1312996Catalyst Particle Porosity Effect upon Flameless Combustion CharacteristicsV. V. Kalinchak0A. S. Chernenko1A. F. Fedorenko2A. N. Sofronkov3V. V. Kramarenko4I.I. Mechnikov Odessa National UniversityI.I. Mechnikov Odessa National UniversityI.I. Mechnikov Odessa National UniversityOdessa State Ecological UniversityI.I. Mechnikov Odessa National UniversityThe problem of heat and mass transfer of a porous catalyst particle is considered. On the her surface, including the inner surface of the pores, an irreversibly heterogeneous first-order reaction proceeds. It has been analytically shown that in a heated gas mixture, the catalyst's porosity reduces the minimum impurity's concentration of catalytic spontaneous combustion in the mixture and increases the catalyst particle's corresponding diameter. This concentration corresponds to the external kinetic and internal diffusion reaction's modes.https://journals.pnu.edu.ua/index.php/pcss/article/view/2996metal oxidation catalystsporosityignitionsurface (flame-free) combustion
spellingShingle V. V. Kalinchak
A. S. Chernenko
A. F. Fedorenko
A. N. Sofronkov
V. V. Kramarenko
Catalyst Particle Porosity Effect upon Flameless Combustion Characteristics
Фізика і хімія твердого тіла
metal oxidation catalysts
porosity
ignition
surface (flame-free) combustion
title Catalyst Particle Porosity Effect upon Flameless Combustion Characteristics
title_full Catalyst Particle Porosity Effect upon Flameless Combustion Characteristics
title_fullStr Catalyst Particle Porosity Effect upon Flameless Combustion Characteristics
title_full_unstemmed Catalyst Particle Porosity Effect upon Flameless Combustion Characteristics
title_short Catalyst Particle Porosity Effect upon Flameless Combustion Characteristics
title_sort catalyst particle porosity effect upon flameless combustion characteristics
topic metal oxidation catalysts
porosity
ignition
surface (flame-free) combustion
url https://journals.pnu.edu.ua/index.php/pcss/article/view/2996
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AT aschernenko catalystparticleporosityeffectuponflamelesscombustioncharacteristics
AT affedorenko catalystparticleporosityeffectuponflamelesscombustioncharacteristics
AT ansofronkov catalystparticleporosityeffectuponflamelesscombustioncharacteristics
AT vvkramarenko catalystparticleporosityeffectuponflamelesscombustioncharacteristics