吸附树脂对油气分子吸脱附性能实验研究*

吸附材料的性能对油气分子吸附过程起着关键性的作用。系统表征了三种吸附树脂材料(HX-1型、HX-2型和HX-3型)孔结构信息,计算了相应的标准特征吸附能,考察了其初次吸附钝化过程和动态吸附过程特性。实验结果表明,三种吸附树脂均具有丰富的微孔和介孔分布,其中HX-1型树脂的微孔孔容与微孔占有率最大,通过相应的标准吸附特征能可反映其微孔分布;三种吸附树脂的初次钝化吸附量和动态吸附量变化情况相似,均为HX-1型树脂最大,HX-2型树脂次之,HX-3型树脂最小。吸附树脂中的微孔分布决定了油气分子吸附过程,从而影响对应的吸附量。

Experimental study on the adsorption of gasoline vapor on different adsorption resins

The performance of adsorbents plays a critical role in the adsorption of gasoline vapor mixtures. Therefore, this paper systematically characterized the pore structure information of three kinds of adsorption resins, including HX-1, HX-2 and HX-3. The standard adsorption energy were calculated, and the performance of first passivation adsorption and dynamic adsorption were also investigated. The experimental results showed that all of the resins studied in this paper have extensive pore distribution, and HX-1 exhibits maximum microporous volume. The standard adsorption energy calculated can also reveal the microporous distribution of three adsorption resins. In addition, the adsorbed capacity of first passivation and dynamic adsorption shows the same similar trend, HX-1 > HX-2 > HX-3. Gasoline vapor adsorption on adsorption resins was determined by microporous distribution, thus affecting the corresponding adsorption capacity.