Table 2 Diffusion models
Model | Non-linear equation | Model parameters | |
|---|---|---|---|
Intra-particle diffusion | \( q_{t} = k_{i} t^{1/2}+C \) | \( k_{i} \),\( C \) | Equation 5 |
Film diffusion | \( D_{f} = 0.23\frac{{r_{0} \delta q_{e} }}{{t_{1/2} }} \) | \( D_{f} \) | Equation 6 |
Pore diffusion | \( D_{p} = 0.03\frac{{r_{0}^{2} }}{{t_{1/2} }} \) | D p | Equation 7 |