- Tytuł:
- Conditions of dead zone forming in porous catalyst pellets
- Autorzy:
-
Król, G.
Szukiewicz, M. - Powiązania:
- https://bibliotekanauki.pl/articles/185431.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
diffusion reaction processes
diffusional limitation
critical Thiele modulus
procesy reakcji dyfuzji
ograniczenia dyfuzyjne
moduł krytyczny Thiele - Opis:
- In the present work the results of the investigations on dead zone formation conditions in catalyst pellet are discussed. A new, simple method of determining the types of kinetic equations for which such a zone can appear was developed on the basis of simple mathematical transformations. It was shown that: (i) pellet geometry has no influence on necessary conditions of the origination of dead zone (ii) only driving-force term (in the sense of Langmuir-Hinshelwood-Hougen-Watson kinetic approach) decides if a dead zone is formed. A new algorithm which allows fast and precise evaluation of critical Thiele modulus Fcrit (in a catalyst pellet for F>Fcrit the dead zone appears) was proposed and tested.
- Źródło:
-
Chemical and Process Engineering; 2018, 39, 1; 129--138
0208-6425
2300-1925 - Pojawia się w:
- Chemical and Process Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł