活性炭对VOCs吸附效果影响因素及吸附机制研究

Study on the Factors Influencing the Adsorption Effect and Adsorption Mechanism of Activated Carbon for VOCs

为了研究活性炭对VOCs的吸附效果和吸附机制,以不同污染物浓度和吸附温度为条件,考察活性炭对甲苯以及乙酸乙酯的吸附作用效果,当以吸附平衡时间为参照时,可以发现污染物浓度或者温度越高时,活性炭对VOCs的吸附效率越高,吸附速率越快。通过活性炭在化学过滤器中实际应用效果,论证了活性炭对VOCs进行净化处理时竞争吸附机制。研究结果可以为工业中采用活性炭吸附VOCs提供指导。

In order to study the adsorption effect and adsorption mechanism of VOCs treated by activated carbon,the adsorption effect of activated carbon on toluene and ethyl acetate was studied under the conditions of different air pollutant concentration and temperature.When referring to the adsorption equilibrium time,it was concluded that the higher the concentration or temperature,the higher the adsorption efficiency of activated carbon on VOCs and the faster the adsorption rate of activated carbon.Through the practical application effect of activated carbon in chemical filter,the competitive adsorption mechanism of activated carbon in VOCs purification is demonstrated.The results of this study can provide guidance for the treatment of VOCs with activated carbon in industry.