Review Article

Carbon Dioxide Separation from Flue Gases: A Technological Review Emphasizing Reduction in Greenhouse Gas Emissions

Table 4

Adsorption capacity of physical adsorbents for post-combustion CO2.

SorbentOperating temperature (K)Operating pressure (kPa)CO2 capture capacity (mol CO2/kg sorbent)Regeneration cycles, CO2 capture capacity remained after cycles (%)Reference

Activated carbon3031101.58n.a.n.a.[93]
AC (4% KOH)303300.55n.a.n.a.[93]
AC (EDA + EtOH)303300.53n.a.n.a.[93]
AC (4% KOH + EDA + EtOH)303300.64n.a.n.a.[45, 70, 79]
NiO-ACs2981012.227n.a.n.a.[104]
13X39315.1980.7n.a.n.a.[105]
5A39315.1980.38n.a.n.a.[105, 106]
4A39315.1980.5n.a.n.a.[105]
WEG-59239315.1980.6n.a.n.a.[105]
APG-II39315.1980.38n.a.n.a.[105]
Na-Y27310.1324.9n.a.n.a.[105]
Na-X373101.321.242n.a.[105]
NaKA373101.323.88n.a.[105]
NaX-h323101.322.522n.a.[105]
NaX-h373101.321.372n.a.[105]
Na-X-c323101.322.142n.a.[105]
Na-X-c373101.321.412n.a.[105]
Cs-X-h323101.322.422n.a.[105]
Cs-X-h373101.321.482n.a.[105]
Cs-X-c323101.321.762n.a.[105]
Cs-X-c373101.321.15n.a.n.a.[105]
MCM-412981000.62n.a.n.a.[93]
MCM-41 (DEA)3481001.26n.a.n.a.[93]
MCM-41 (50% PEI)3481002.52n.a.n.a.[93]
Activated carbon 303300.35n.a.n.a.[93]
MCM-41 (50% PEI) “molecular basket”3481002.95n.a.n.a.[93]
PE-MCM-412981000.50n.a.n.a.[93]
PE-MCM-41 (TRI)2981002.85n.a.n.a.[93]
PE-MCM-41 (DEA)3481002.36n.a.n.a.[93]
MCM-482981000.033n.a.n.a.[93]
MCM-48 (APTS)2981000.639n.a.n.a.[93]
MCM-412981000.62n.a.n.a.[93]
Molecular basket’
MCM-41 (50% PEI)
3481002.5896.0[93]
PE-MCM-41 (TRI)2981001.81094.4[93]
PE-MCM-41 (DEA)2981002.9796.6[93]
MWNT3031011.720n.a.[4, 93]
Unmodified [(Cu3(btc)2]*29818186.7n.a.n.a.[101]
CNT@ (Cu3(btc)2)298181813.52n.a.n.a.[101]
MIL-101**29810100.84n.a.n.a.[101]
MWCNT@MIL-10129810101.35n.a.n.a.[101]
MOF-229845453.20n.a.n.a.[107]
MOF-177298454533.5n.a.n.a.[107]
Zr-MOFs2739888.1n.a.n.a.[107]
Ca-Al LDH with 40613.55n.a.n.a.[108]
Pd-GNP nanocomposite29811115.1n.a.n.a.[109]
f-GNP29811114.3n.a.n.a.[109]
Pd-GNP nanocomposite29811114.5n.a.n.a.[109]
f-GNP29811113.8n.a.n.a.[109]
Pd-GNP nanocomposite29811114.1n.a.n.a.[109]
f-GNP29811113.3n.a.n.a.[109]
Ceria-based oxides doped with 5% gallium (III) 2981010.282n.a.n.a.[110]
Amine modified layered double hydroxides (LDHs)298–3531010.74–1.75n.a.n.a.[108]

 *Cu3(btc)2; btc: 1,3,5-benzene-tricarboxylate.
**MIL-101 or Cr3(F,OH)(H2O)2O[(O2C)C6H4(CO2)]3· H2O ( ) is one of the metal organic frameworks with Lewis acid sites that can be activated by removal of guest water molecules.