αave
|
average chain growth factor |
β |
parameter for chain growth factor model |
ɛ |
porosity |
η |
effectiveness factor |
ρs
|
density of support skeleton
(kg/m3) |
ρp
|
density of the catalyst pellet
(kg/m3) |
σij
|
characteristic length, Å |
\(\upsilon_{i}\) |
stoichiometric coefficient |
Σv
|
diffusion volume |
\(\Phi\) |
Thiele modulus |
\(\phi_{i}^{{}^{\prime}}\) |
dimensionless Thiele modulus |
Ψi
|
dimensionless concentration of component
i
|