CO₂ Adsorption from Biogas Using Amine-Functionalized MgO

Table 1

Surface area, pore volume, and average pore diameter of MgO-TEPA-x.

Adsorbent	BET surface area (m^2/g)	Pore volume (cm^3/g)	Pore diameter (nm)
MgO	207	0.81	7.3
MgO-TEPA-20	118	0.53	4.6
MgO-TEPA-30	54	0.39	3.2
MgO-TEPA-40	19	0.22	1.9
MgO-TEPA-50	4	0.08	1.1