目的针对密闭空间的空气净化问题,探讨多组分平衡吸附理论。方法通过顶空色谱法和床层动态法采集正己烷(C6H14),四氯化碳(CCl4),苯(C6H6),三氯甲烷(CHCl3),1,2-二氯乙烷(C2H4Cl2)五种物质的单组分和混合吸附等温线,选用吸附等温线模型进行处理。结果采集了五种化合物的吸附等温线和混合吸附等温线,Langmuir-Freundlich模型能对数据较好的拟合。结论多组分参数不同于单组分参数,表现了各组分在混合吸附中的相互作用不可忽略。 Objective To solve the problem of air purification in confined space, the multi-component equilibrium adsorption theory is discussed. Methods The samples of n-hexane (C6H14), carbon tetrachloride (CCl4), benzene (C6H6), trichloromethane (CHCl3) and 1,2-dichloroethane (C2H4Cl2) were collected by headspace chromatography The species of single-component and mixed adsorption isotherms, selected adsorption isotherm model for processing. Results The adsorption isotherms and mixed adsorption isotherms of five compounds were collected. The Langmuir-Freundlich model could fit the data well. Conclusion The multi-component parameters are different from the single-component parameters, indicating that the interaction of each component in the mixed adsorption can not be ignored.