石油化工高等学校学报2017，Vol.30Issue(6)：16-21,6.DOI:10.3969/j.issn.1006-396X.2017.06.004
苯在等级孔Y型分子筛上吸附与扩散行为研究
Adsorption and Diffusion of Benzene on Hierarchically Structured Y Zeolite
摘要
Abstract
Y zeolites with different pore structural and acid properties were studied by XRD ,N2 physical adsorption ,NH3-TPD and Py-FTIR .The adsorption and diffusion properties of benzene in hierarchical pore Y zeolites were investigated by using intelligent gravimetric analyzer (IGA) .It was found that there was no obvious change in the crystal structure of the Y zeolites in the process of modification ,while the pore structure ,acid type ,acidity and acid strength were changed .The mass transfer performance of benzene molecules in the pore level Y zeolite molecular sieve was mainly decided by pore structure .The larger of pore volume Y molecular sieve was ,the faster diffusion rate was .It was more conducive to the diffusion of benzene molecule . The amount of saturated adsorption of benzene molecule was depended on the type and intensity of acid type of Y zeolite .关键词
等级孔Y型分子筛/酸性活性位/苯分子/吸附与扩散Key words
Hierarchical pore Y zeolite/Acid active site/Benzene molecule/Adsorption and diffusion分类
能源科技引用本文复制引用
刘慧,孟秀红,李戎,段林海..苯在等级孔Y型分子筛上吸附与扩散行为研究[J].石油化工高等学校学报,2017,30(6):16-21,6.基金项目
国家自然科学基金项目资助(21476101) . （21476101）
