化工进展2017，Vol.36Issue(9)：3407-3413,7.DOI:10.16085/j.issn.1000-6613.2016-2380
β-CD/Al2O3/ATP复合材料对乙腈/正丙醇的吸附分离性能的 影响
Study on the adsorption performance ofβ-CD/Al2O3/ATP composites for separation of acetonitrile andn-propanol
摘要
Abstract
The static and dynamic adsorption experiments were carried out on the system of acetonitrile andn-propanol with β-CD/Al2O3/ATP composites as adsorbent. The effect of the adsorption conditions on separation of the mixture was investigated. The result showed that β-CD/Al2O3/ATP composite had good adsorption separation effect to the system. The saturate adsorption capacity of the adsorbent was increased with the extension of adsorption time,the decreasing of adsorption temperature and the increasing of oscillation rate. The experimental data were fitted by the Langmuir equation,showing a good linear relationship. The kinetics of the adsorption of acetonitrile andn-propanol on the composite was well described by the pseudo secondary dynamics equation. The dynamic adsorption experiment showed that appropriate reduction of flow rate and increase of column height was beneficial to improve adsorption and separation efficiency. The saturate adsorption capacities of the β-CD/Al2O3/ATP composite material for acetonitrile andn-propanol were 182.6mg/g and 69.76mg/g,respectively. The adsorptive selectivity of acetonitrile was 0.73 with the flow rate of 0.05L/min and the column height of 10cm.关键词
β-CD/凹凸棒土/乙腈/正丙醇/吸附分离Key words
β-CD/attapulgite(ATP)/acetonitrile/n-propanol/adsorption and separation分类
化学化工引用本文复制引用
王俊,韶晖,解丹燕,冷一欣,黄春香..β-CD/Al2O3/ATP复合材料对乙腈/正丙醇的吸附分离性能的 影响[J].化工进展,2017,36(9):3407-3413,7.基金项目
江苏省青年科学自然基金项目(BK2015026). （BK2015026）
