Modelling of chemical reactors. VI. Heat and mass transfer in a porous catalyst particle; On the multiplicity of solutions for the case of an exothermic zeroth-order reaction

1968 ◽  
Vol 33 (2) ◽  
pp. 506-517 ◽  
Author(s):  
M. Marek ◽  
V. Hlaváček
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Catalyst Particle ◽  
Order Reaction ◽  
Zeroth Order ◽  
Chemical Reactors ◽  
Porous Catalyst ◽  
Multiplicity Of Solutions

scholarly journals Catalyst Particle Porosity Effect upon Flameless Combustion Characteristics

2020 ◽  
Vol 21 (1) ◽  
pp. 124-131
Author(s):  
V. V. Kalinchak ◽  
A. S. Chernenko ◽  
A. F. Fedorenko ◽  
A. N. Sofronkov ◽  
V. V. Kramarenko
Keyword(s):  
Mass Transfer ◽  
Spontaneous Combustion ◽  
Catalyst Particle ◽  
Order Reaction ◽  
Gas Mixture ◽  
Porous Catalyst ◽  
First Order ◽  
Inner Surface ◽  
Reaction Proceeds ◽  
Porosity Effect

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.

Sign in / Sign up

Export Citation Format

Share Document