影响活性炭吸附苯系物条件的研究

Research on the Factors That Affect the Activated Carbon Adsorption on "Benzenes

活性炭吸附法是目前最为广泛使用的处理ＶＯＣｓ的方法之一，本实验用苯、甲苯、二甲苯作为ＶＯＣｓ的代表物，研究ＶＯＣｓ的浓度、物化性质及气流量对活性炭吸附的影响．实验结果表明，ＶＯＣｓ度与穿透时间的对数成线性关系；物化性质对透过点有影响，甲苯比苯更易透过；流量大的ＶＯＣｓ气流较快透过．

Activated carbon adsorption is one of the most popular methods used to control VOCs pollution. Benzene, toluene and xylene are chosen as the representatives of VOCs. The effection of the VOCs' concentration, the physical-chemical properties and the flux on the activated carbon adsorption capacity was determined. The results indicate that the logarithmic relationship between the VOCs' concentration and penetration time is linear. The physical-chemical properties affect the penetration point, and the benzene is easier to penetrate than toluene. Flux makes penetration faster.