球形活性炭和球形树脂对不同VOCs的吸脱附特性研究  

Study on adsorption and desorption performance of spherical activated carbon and spherical polymer resin for different volatile organic compounds

作　　者：吕雪龙 齐秋萍 柏广明 朱佳楠 张文睿[1] 梁鹏[1] Lü Xuelong;QI Qiuping;BAI Guangming;ZHU Jia’nan;ZHANG Wenrui;LIANG Peng(College of Chemical and Environmental Engineering,Shandong University ofScience and Technology,Qingdao,Shandong 266590,China)

机构地区：[1]山东科技大学化学与环境工程学院

出　　处：《山东科技大学学报（自然科学版）》2019年第4期58-64,共7页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(21776164);山东省重大基础研究计划项目(ZR2017ZC0633)

摘　　要：为探究多级鼓泡流化床吸附工艺中吸附剂的选择依据,本研究选取3种商业球形吸附剂作为实验材料,分别考察乙醇、乙酸乙酯、环己烷和二甲苯在上述吸附剂上的吸脱附行为,比较分析了吸附剂不同理化性质对吸附特性的影响。实验结果表明:吸附剂孔道结构和表面官能团都会影响吸附质的动态吸附特性,具有更大微孔容积、更小微孔分布的吸附剂对吸附质的动态吸附性能更好;吸附剂的表面官能团类型会对不同吸附质的吸附产生影响。对于实验所考察的4种吸附质,3种吸附剂在脱附温度达到160℃后均可脱附完全,符合实际应用要求。本研究工作对多级鼓泡流化床吸附工艺的开发及吸附剂的选择具有指导意义。To explore the selection basis of adsorbents in the multistage bubbling fluidized bed adsorption process,this study selected three commercial spherical adsorbents as materials for experiments,investigated the adsorption and desorption behavior of ethanol,ethyl acetate,cyclohexane and xylene on these adsorbents respectively,and a comparative analysis of the effect of different physical and chemical properties of adsorbents on the adsorbates is accomplished.The results indicate that both the pore structure and surface functional groups of adsorbents affect the dynamic adsorption performance of adsorbates,and this performance on adsorbents with larger pore volume and smaller pore distribution is better.The type of surface functional groups of the adsorbents can affect the adsorption performance of different volatile organic compounds(VOCs).Among the four adsorbates examined in the experiment,three can be completely regenerated when the desorption temperature reaches 160℃,which meets the practical application requirements.This study is of major significance especially for the development of multistage bubbling fluidized bed adsorption process and the selection of adsorbent.

关 键 词：球形吸附剂 吸脱附特性 孔径 表面化学性质 挥发性有机化合物 

分 类 号：X511[环境科学与工程—环境工程]