TY - JOUR N2 - 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. L1 - http://www.journals.pan.pl/Content/103643/PDF/CPE-39-1-art_10_119104_10.pdf L2 - http://www.journals.pan.pl/Content/103643 PY - 2018 IS - No 1 KW - diffusion reaction processes KW - diffusional limitations KW - critical Thiele modulus A1 - Król, Grzegorz A1 - Szukiewicz, Mieczysław PB - Polish Academy of Sciences Committee of Chemical and Process Engineering VL - vol. 39 DA - 2018.03.30 T1 - CONDITIONS OF DEAD ZONE FORMING IN POROUS CATALYST PELLETS UR - http://www.journals.pan.pl/dlibra/publication/edition/103643 T2 - Chemical and Process Engineering ER -