Deodorization of model biogas by meansof novel non-ionic deep eutectic solvent

The paper presents new non-ionic deep eutectic solvent (DES) composed of natural and non-toxic components i.e. guaiacol, camphor levulinic acid in 1:1:3 molar ratio as a promising absorbent for removal of selected volatile organic compounds (VOCs) including dichloromethane, toluene, hexamethyldisiloxane and propionaldehyde from model biogas. The affi nity DES VOCs was determined vapour-liquid coeffi cients the results were compared with several well-known DESs based on quaternary ammonium salt well n-hexadecane water. For new DES, absorption process carried out under dynamic conditions. The indicate that has high capacity being comparable to n-hexadecane. In addition, absorbed could be easily desorbed using activated carbon and absorbent re-use minimum five times without signifi cant loss