文献类型：期刊文献

英文题名：Liquid-phase adsorption kinetics of n-paraffins on 5A zeolite

作者：Sun, H.[1]; Shen, B.[1]; Liu, J.[1]

机构：[1] State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China

年份：2009

卷号：27

期号：15

起止页码：1704

外文期刊名：Petroleum Science and Technology

收录：EI(收录号：20100412652629)

语种：英文

外文关键词：Zeolites - Adsorption - Diffusion - Kinetics - Hexane - Liquids - Binders - Pelletizing

摘要：The adsorption kinetics of n-hexane from liquid-phase on 5A zeolite crystals, binderless pellets, powder with binder, and pellets with binder are investigated in order to develop the diffusion control mechanism. The adsorption kinetics of n-C5-n-C8 from liquid-phase are studied on binderless 5A zeolite pellets and the pellets containing binder. Adsorption rate of n-paraffins on binderless pellets is controlled by micropore diffusion while it is controlled by macropore diffusion on 5A zeolite pellets with binder. For the same adsorbate, the apparent diffusional time constants on the binderless pellets are about 6-11 times larger than those on others.