文摘
The physical absorption of three Volatile Organic Compounds (dimethyldisulphide (DMDS), dimethylsulphide (DMS) and toluene) in ¡°water/silicone oil¡± systems at a constant flow rate for mixtures of different compositions (? = 0 % , 5 % , 10 % , 15 % , 20 % , and 100 % ) was investigated using a dynamic absorption method. The results indicate that silicone oil addition leads to a dramatic decrease in KLa which can be related to the change in the partition coefficient (Hmix). They confirm the results obtained for styrene absorption using another measurement technique . The interpretation of the results using dimensionless ratios KLa(?)/KLa(?=0 % ) and KLa(?)/KLa(?=100 % ) versus ? also confirms the importance of the partition coefficient ratio mR = Hwater/Hoil in the KLa change. Moreover, the results obtained for toluene absorption in ¡°air/water/silicone oil¡± systems (? = 10 % , 15 % , and 20 % ) suggest that the mass transfer pathway is in the order gas ¡ú water ¡ú oil for these operating conditions.