Exploring the potential of infrared spectroscopy on the study of the adsorption/desorption of siloxanes for biogas purification
Abstract(#br)A commercial activated carbon (AC) was characterized by physicochemical methods. The AC adsorption/desorption properties and the adsorbent regenerability were evaluated for the removal of octamethylcyclotetrasiloxane (D4), a common siloxane impurity in biogases. In situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) was employed to investigate the adsorption of D4 on AC at room temperature and its thermodesorption up to 300\u003cce:hsp sp=\"0.25\"/\u003e°C.