高校化学工程学报2011，Vol.25Issue(2)：219-224,6.
MCM-41和SBA-15动态吸附VOCs特性和穿透模型
Dynamic Adsorption Performances and Breakthrough Curve Model of Some Aromatic VOCs on MCM-41 and SBA-15
摘要
Abstract
The mesoporous molecular sieves of MCM-41 and SBA-15 with ordered pore structure were synthesized by the template method, and their dynamic adsorption performances for some VOCs, such as toluene, o-xylene and mesitylene, were studied. The results show that the MCM-41 is prior to adsorb the VOCs with medium and low concentrations, because the attractive forces from pore walls of MCM-41 is enhanced by its small pore diameter. The adsorption characteristics of VOCs on MCM-41 could be attributed to the typical type Ⅰ isotherm from IUPAC. The SBA-15 involves both mesopores and micropores, and is more appropriate for the adsorption of VOCs with higher concentrations and macromolecules. Furthermore, SBA-15 is also suitable for the adsorption of VOCs with low concentrations. The adsorption isotherms of VOCs on SBA-l5 are that of typical type Ⅳ.The dynamic adsorption processes on MCM-41and SBA-15 could be simulated by Yoon-Nelson model. The breakthrough curves of VOCs adsorption on these mesoporous molecular sieves could be predicted by using this model and its related parameters accurately.关键词
MCM-41/SBA-15/VOCs/动态吸附/Yoon-Nelson模型Key words
MCM-41/ SBA-15/ VOCs/ dynamic adsorption/ Yoon-Nelson model分类
资源环境引用本文复制引用
黄海凤,褚翔,卢晗锋,张波,李瑛,陈银飞..MCM-41和SBA-15动态吸附VOCs特性和穿透模型[J].高校化学工程学报,2011,25(2):219-224,6.基金项目
浙江省科技厅重大专项资助(2007C13042)浙江省自然科学基金(Y5090202). （2007C13042）
