CO2 Capture by Adsorption on MCM-68 Solid Sorbent Materials

Solid sorbents adsorption is considered as one of the potential options for CO2 capture process. CO2 adsorption on MCM-68 (Si/Al ratio 22) sorbent material was investigated. MCM-68 was synthesized using N,N,N',N'-tetraethylbicyclo [2.2.2] oct-7-ene-2,3:5,6-dipyrrolidinium diiodide (TEBOP(superscript 2+)(I(superscript -))2) as a structure-directing agent (SDA). CO2 adsorption capacity on MCM-68 sorbent was measured at a broad temperature window i.e. 60℃, 300℃ and at 400℃. The presence of ordered mesoporous structure, high surface area (456 m^2/g) and high thermal stability (TGA analysis up to 900℃) in MCM-68 are thought to be to be advantageous for the CO2 adsorption in broad temperature window.