Phenol-Formaldehyde Resin-Based Carbons for CO2 Separation at Sub-Atmospheric Pressures

摘要: The challenge of developing effective separation and purification technologies that leave much smaller energy footprints is greater for carbon dioxide (CO2) than other gases. In addition to its involvement in climate change, CO2 present as an impurity biogas bio-hydrogen (biological production by dark fermentation), post-combustion processes (flue gas, CO2-N2) many gas streams. Selected phenol-formaldehyde resin-based activated carbons prepared our laboratory have been evaluated under static conditions (adsorption isotherms) potential adsorbents at sub-atmospheric pressures, i.e., or from CO2, H2, N2, CH4 adsorption isotherms 25 °C up 100 kPa were obtained using a volumetric equipment correlated applying the Sips model. Adsorption equilibrium was then predicted multicomponent mixtures extending model Ideal Adsorbed Solution Theory (IAST) conjunction with uptakes resin-derived CO2-CH4, CO2-H2, CO2-N2 atmospheric pressure those reference commercial (Calgon BPL). performance terms seems therefore relevant hydrogen fermentation (CO2-H2, CO2-CH4).