石油化工高等学校学报2012,Vol.25Issue(3):27-30,4.DOI:10.3969/j.issn.1006-396X.2012.03.006
烃类分子在HZSM-5分子筛上的吸附扩散行为研究
Adsorption and Diffusion of Hydrocarbons in HZSM-5 Zeolite
摘要
Abstract
Adsorption and diffusion behavior of alkane.alkene and aromatics in HZSM-5 zeolites, with pentane. 1 - pentene and benzene as the model of compounds, had been investigated by using the frequency response (FR) method. The FR spectra show that pentane has the strongest FR signal, while for 1 - pentene and benzene, the signals were hardly detected. Combined with the results of adsorption isotherms and the TPD.it can be concluded that the interactions between the HZSM -5 and the sorbate molecules used are quite different, the interaction between pentane and the zeolite is Van der Waals force, which belongs lo physisorplion, while for 1 - pentene and benzene, the interactions can be attributed to the strong chemiadsorption with HZSM -5 through complexation, resulting the weak FR signals.关键词
频率响应/HZSM-5/吸附脱附Key words
Frequency response/ HZSM -5 zeolites/ Adsorption and diffusion / Corresponding author.分类
能源科技引用本文复制引用
杜美玉,孙庆,赖君玲,武玉叶,宋丽娟..烃类分子在HZSM-5分子筛上的吸附扩散行为研究[J].石油化工高等学校学报,2012,25(3):27-30,4.基金项目
国家自然科学基金项目(210761001) (210761001)