Review of the Pressure Swing Adsorption Process for the Production of Biofuels and Medical Oxygen: Separation and Purification Technology

Table 2

Comparison of the thermodynamic values of various adsorbents as a function of temperature.

Reference	Adsorbents	Temperature; K	Maximum adsorption capacity; Q	Langmuir constant	Adsorption time
[19]	Cornmeal	333.15	0.029	—	—
		364.15	0.025	—	300 min
[20]	ZSG-1	303.15	0.1046	—	—
	ZSG-1	352.15	0.1241	—	—
	ZSG-1	357.15	0.1499	—	—
	ZSG-1	362.15	0.1511	—	—
	ZSG-1	370.15	0.1529	—	80 min
[21]	Silicalite	298	0.116	—	9 min
[10]	Clinoptilolite	373	0.198	—	—
[11]	Zeolite 3A	348	0.18	25	—
	3A	373	0.171	8	—
	3A	398	0.162	2.9	—
	3A	423	0.135	1.19	—
	3A	448	0.108	0.54	—
[12]	LTA-K	298	0.130	0.735	—
	LTA-Na	298	0.150	0.563	—
	LTA-ca	298	0.094	0.589	—
	FAU-Na	298	0.166	0.611	—
	MOR-Na	298	0.045	0.403	—
[14]	Zeolite 3A	323.15	0.1915	0.00791	200 min
	3A	343.158	0.180	0.00655	180 min
	Heulandite-Sonora	323.15	0.1	0.00925	185 min
	Heulandite-Sonora	343.158	0.097	0.00345	150 min
	Clinoptilolite-Potosí	323.15	0.097	0.00491	180 min
	Clinoptilolite-Potosí	343.158	0.094	0.00253	145 min
[13]	Clinoptilolite	293.15	0.161	—	24 h
[22]	Clinoptilolite	283	0.13428	0.0179	—
	Clinoptilolite	298	0.12618	0.0156	—
	Clinoptilolite	313	0.12402	0.0125	24 h
	Clinoptilolite	328	0.11916	0.0113	—
	Clinoptilolite	343	0.11304	0.0106	—
[23]	Sylobead 3A	373.15	0.198	—	—
[24]	Zeolite 3A	393.15	0.085	0.1006	135 min
	3A	413.15	0.065	0.0828	75 min
[25]	Zeolita NaA	378	0.155	—
[15]	Philipsita	326.3	0.0432	0.76	57 min
	Philipsita 0.5 M	326.3	0.0800	0.81	34 min
	Philipsita 0.75 M	326.3	0.0770	0.83	35 min
	Philipsita 1 M	326.3	0.1054	1.2	55 min
	Philipsita 2 M (natural)	326.3	0.1016	0.93	41 min
[16]	ACF	298.15	0.1571	0.58	600 s
	ACF	308.15	0.1567	0.30	—
	ACF	318.15	0.1576	0.15	1800 s
	ACF-850	298.15	0.2266	0.22	680 s
	ACF-850	308.15	0.2244	0.12	—
	ACF-850	318.15	0.2264	0.06	700 s
	ACF-750	298.15	0.1488	0.59	200 s
	ACF-750	308.15	0.1477	0.29	—
	ACF-750	318.15	0.1456	0.16	450 s
[17]	ZIF-8	298.15	0.45661	5.30	5 min
	ZIF-67	298.15	0.4633	5.35	5 min
[26]	Zeolita 4A	336.15	0.1030	—	57 min
	3A	298.15	0.249	0.317	40 min
	3A	313.15	0.238	0.153	30 min
	3A	323.15	0.220	0.090	22 min
	3A Sintética)	333.15	0.200	0.052	20 min
[18]	Clinoptilolite (1-2 mm)	298.15	0.405	2019.56	540 s
	Clinoptilolite (3 mm)	298.15	0.31	1386.20	720 s
	Clinoptilolite (5 mm)	298.15	0.29	3521.28	180 s
	LV-NENG	298.15	0.275	1353.44	720 s
	Sorbead	298.15	0.26	1053.11	540 s