Absorptionof Hydrophobic Volatile Organic Compounds by a Rotating Packed Bed.

The high development of industries leads to significantamountof waste hydrophobic volatile organic compounds (VOCs), and thesehave caused serious environmental concerns. Because of the physicalproperties of the hydrophobic VOCs, a hydrophobic absorbent is neededin order to make the process more efficient if absorption is considered.However, most of these absorbents have high viscosities which leadsto a low mass transfer coefficient. Thus, a cross-flow rotating packedbed (RPB) was evaluated for the feasibility of absorbing the hydrophobicVOCs, xylene, and toluene, by silicon oil, a model hydrophobic absorbent.The result shows that the absorption percentage could be up to 98%within a second contact of liquid and gas. [ABSTRACT FROM AUTHOR]