文献类型：期刊文献

英文题名：Adsorption equilibrium of n-paraffins on binderless 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：2010

卷号：28

期号：1

起止页码：103

外文期刊名：Petroleum Science and Technology

收录：EI(收录号：20101212784848)

语种：英文

外文关键词：Adsorption - Heptane - Hexane - Adsorption isotherms - Zeolites - Pelletizing

摘要：The binderless 5A zeolite has higher economy when used in adsorption process to improve utilization efficiency of naphtha. Adsorption isotherms of n-pentane, n-hexane, n-heptane and n-octane on binderless 5A zeolite pellets were determined gravimetrically and analyzed in the temperature ranging from 423 to 573 K. Adsorption thermodynamic parameters were extracted from multisite Langmuir (MSL) model. Heats of adsorption for n-paraffins on 5A zeolite show an increasing trend with carbon number. At small degree of sites filling, the heats of adsorption of n-paraffins on binderless pellets increase from 53.19 kJ mol-1 for n-pentane to 72.34 kJ mol-1 for n-octane.