摘要
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 discuss the multi-component adsorption equilibrium theory ior air purification in closed space. Methods The adsorption isotherms of C6H14, CC14 ,C6H6, CHC13 and C2H4C12 on activated carbon were measured through head space gas chromatography （HSGC） method and dynamic bed method and the adsorption isotherm models were used for fitting. Results The data of single component can be well fitted by Langmuir-Freundlich model and the muhicomponent data can be fitted by the extended Langmuir-Freundlich medel, and the fitting parameters have specific physical meaning. Conclusion The parameters from the multi- component isotherms are different from that of the single component isotherms due to the complex and un-negli- gible interactions among the comoonents.
出处
《航天医学与医学工程》
CAS
CSCD
北大核心
2013年第3期190-194,共5页
Space Medicine & Medical Engineering
基金
国家973计划资助项目(2011CB309500)
