Table 3.

Dual Mode Sorption model parameters (fugacity-based) for CO₂ and CH₄ sorption in PIM-1, TZ-PIM, obtained by a least-square fit on data from Refs. [25,26,48], imposing the temperature dependence constraints expressed by Equations (8) and (9).

CO2
	T	${\mathit{k}}_{\mathit{D}}$	${\mathit{C}}_{\mathit{H}}^{\mathbf{\prime }}$	$\mathit{b}$	SEE	$\overline{\mathit{S}\mathit{E}\mathit{E}}$ mix
	(°C)	$\mathbf{\left(}\frac{\mathit{c}{\mathit{m}}_{\mathit{S}\mathit{T}\mathit{P}}^{\mathbf{3}}}{\mathit{c}{\mathit{m}}_{\mathit{p}\mathit{o}\mathit{l}}^{\mathbf{3}}\mathit{b}\mathit{a}\mathit{r}}\mathbf{\right)}$	$\mathbf{\left(}\frac{\mathit{c}{\mathit{m}}_{\mathit{S}\mathit{T}\mathit{P}}^{\mathbf{3}}}{\mathit{c}{\mathit{m}}_{\mathit{p}\mathit{o}\mathit{l}}^{\mathbf{3}}}\mathbf{\right)}$	( $\mathit{b}\mathit{a}{\mathit{r}}^{\mathbf{-}\mathbf{1}})$	$\mathbf{\left(}\frac{\mathit{c}{\mathit{m}}_{\mathit{S}\mathit{T}\mathit{P}}^{\mathbf{3}}}{\mathit{c}{\mathit{m}}_{\mathit{p}\mathit{o}\mathit{l}}^{\mathbf{3}}}\mathbf{\right)}$	$\mathbf{\left(}\frac{\mathit{c}{\mathit{m}}_{\mathit{S}\mathit{T}\mathit{P}}^{\mathbf{3}}}{\mathit{c}{\mathit{m}}_{\mathit{p}\mathit{o}\mathit{l}}^{\mathbf{3}}\mathit{b}\mathit{a}\mathit{r}}\mathbf{\right)}$
PIM-1	25	4.150	90.56	0.638	2.43	1.86
	35	2.883	89.02	0.470	4.30	3.73
	50	1.742	85.63	0.308	1.11	1.44
TZ-PIM	25	3.625	82.25	0.676	3.54	13.43
	35	2.473	77.23	0.511	3.13	10.04
	50	1.457	76.94	0.347	2.92	11.31
CH4
	T	${\mathit{k}}_{\mathit{D}}$	${\mathit{C}}_{\mathit{H}}^{\mathbf{\prime }}$	$\mathit{b}$	SEE	$\overline{\mathit{S}\mathit{E}\mathit{E}}$ mix
	(°C)	$\mathbf{\left(}\frac{\mathit{c}{\mathit{m}}_{\mathit{S}\mathit{T}\mathit{P}}^{\mathbf{3}}}{\mathit{c}{\mathit{m}}_{\mathit{p}\mathit{o}\mathit{l}}^{\mathbf{3}}\mathit{b}\mathit{a}\mathit{r}}\mathbf{\right)}$	$\mathbf{\left(}\frac{\mathit{c}{\mathit{m}}_{\mathit{S}\mathit{T}\mathit{P}}^{\mathbf{3}}}{\mathit{c}{\mathit{m}}_{\mathit{p}\mathit{o}\mathit{l}}^{\mathbf{3}}}\mathbf{\right)}$	( $\mathit{b}\mathit{a}{\mathit{r}}^{\mathbf{-}\mathbf{1}})$	$\mathbf{\left(}\frac{\mathit{c}{\mathit{m}}_{\mathit{S}\mathit{T}\mathit{P}}^{\mathbf{3}}}{\mathit{c}{\mathit{m}}_{\mathit{p}\mathit{o}\mathit{l}}^{\mathbf{3}}}\mathbf{\right)}$	$\mathbf{\left(}\frac{\mathit{c}{\mathit{m}}_{\mathit{S}\mathit{T}\mathit{P}}^{\mathbf{3}}}{\mathit{c}{\mathit{m}}_{\mathit{p}\mathit{o}\mathit{l}}^{\mathbf{3}}\mathit{b}\mathit{a}\mathit{r}}\mathbf{\right)}$
PIM-1	25	0.759	78.51	0.130	1.80	3.74
	35	0.561	72.98	0.113	0.73	2.02
	50	0.369	66.17	0.093	1.00	1.12
TZ-PIM	25	1.275	49.29	0.206	2.73	2.41
	35	0.865	42.49	0.171	1.99	3.87
	50	0.506	41.58	0.133	1.23	4.46