第 41 卷第 6 期Vol. 41 No. 6
2011 年 12 月Dec 2011

所属栏目:功能材料

分子筛对环己酮中己醛和2-庚酮的吸附性能研究
黄 燕1,2,何扬锦1,王 石1,吴 明1,高丽萍1 (1. 湖南理工学院 南湖学院,湖南 岳阳 414006;2. 湖南理工学院 化学化工学院,湖南 岳阳 414006)
摘 要:以环己酮塔顶液为研究对象,用分子筛作吸附剂,利用分子筛对杂质的物理和化学吸附作用,对含有己醛和2-庚酮等多种杂质的环己酮液体进行了吸附研究。分别考察了分子筛的硅铝比、吸附时间、吸附温度和吸附剂的添加量对己醛和2-庚酮的吸附去除效果。硅铝比为80的分子筛对己醛和2-庚酮的吸附效果最好,且吸附温度为30℃,吸附时间为24 h,剂油比为0.08 g/m3时,己醛去除率达到99.52%,2-庚酮去除率达100%。
关键词:分子筛;环己酮;己醛;2-庚酮;吸附
中图分类号:TQ 174  文献标识码:A  文章编号:1009-9212(2011)06-0058-03
Study on the Adsorption of Hexanal and 2-Heptanone in Industrial Cyclohexanone with Molecular Sieve
HUANG Yan1,2,HE Yang-jin1,WANG Shi1,WU Ming1,GAO Li-ping1 (1. Nanhu College,Hunan Institute of Science and Technology,Yueyang 414006,China;2. Department of Chemical Engineering,Hunan Institute of Science and Technology,Yueyang 414006,China)
Abstract:ZSM-5 Molecular sieves with different Si/Al ratios were investigated for the adsorption of hexanal and 2-heptanone in cyclohexanone. The effects of the adsorption time,the adsorption temperature and the amount of the adsorbent were investigated. Best results were obtained under the following conditions:n(Si)∶n(Al)=80∶1,adsorption time 24 h,adsorption temperature 30℃ and the ratio of zeolite to cyclohexanone 0.08 g/m3. The removal rates were 99.52% and 100% for hexanal and 2-heptanone,respectively.
Key words:zeolite;cyclohexanone;hexanal;2-heptanone;adsorption
基金项目:湖南省大学生研究性学习和创新性实验计划项目(2011009)。
作者简介:黄 燕(1963-),女,湖南岳阳人,副教授,博士研究生,研究方向:功能材料。(E-mail:hy1107@163.com)
收稿日期:2011-12-02