Adsorption, Diffusion and Thermal Desorption Features of Cyclopentane and Cyclohexane in Silicalite-1

作     者：段林海 宋丽娟 张晓彤 唐克 代镇华 孙兆林 

作者机构：Department of Chemistry Lanzhou University Lanzhou Gansu 730000 China College of Petrochemical Engineering Liaoning University of Petroleum and Chemical Technology Fushun Liaoning 113001 China 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2006年第24卷第7期

页      面：961-965页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the National Natural Science Foundation of China (20476042) 

主　　题：thermal desorption silicalite-1 cyclopentane cyclohexane 

摘      要：Adsorption, diffusion and thermal desorption features of cyclopentane and cyclohexane in silicalite-1 have been investigated using the intelligent gravimetric technique. Both the saturation adsorption loadings and diffusion coefficient of cyclopentane were greater than those of cyclohexane. The diffusivity of cyclopentane was about one order of magnitude greater than that of cyclohexane at the same temperature and initial loading. For cyclopentane, there was only one kind of desorption process at adsorption loadings lower than 4 muc （molecule per unit cell）, but two desorption processes appeared at the adsorption loadings higher than 4 muc. While for cyclohexane, one desorption process was found in the whole range of loadings. Both thermal desorption peaks of cyclopentane and cyclohexane moved to higher temperature region with increasing loading.