低浓度挥发性有机废气的吸附净化  

Adsorption Purifcation of Low Concentration Volatile Organic Compounds Emissions

作　　者：江浩[1] 郭杨龙[1] 李佩晋[1] 张志刚[1] 郭耘[1] 王筠松[1] 卢冠忠[1] 

机构地区：[1]华东理工大学工业催化研究所结构可控先进功能材料及其制备教育部重点实验室,上海200237

出　　处：《化学世界》2008年第4期216-219,228,254,共6页Chemical World

基　　金：国家973计划(2004CB719500);上海市纳米科技专项基金(0452nm005)资助项目

摘　　要：吸附净化是处理低浓度挥发性有机废气(≤1000 mg/m3)的有效方法之一。整体式蜂窝状活性炭由于其开孔道结构,压降小,是比较理想的吸附剂。考察了甲苯浓度、空速、吸附-脱附循环次数和表面改性等对整体式蜂窝状活性炭吸附性能的影响,取得了较好的净化效果。结果表明,当吸附温度为25°C,气体空速为10000 h-1,甲苯浓度为500 mg/m3时,对甲苯的吸附率为6.5wt%,当脱附温度为250°C时,甲苯基本脱附完全。The adsorption purification is one of the most efficient ways to treat low concentration of volatile organic compounds emissions（≤1000 mg/m^3）.Honeycomb active carbon monolith（HACM） is an ideal adsorbent due to the nearly null pressure drop with its open channel structure.Effects of toluene concentration,space velocity,times for adsorption-desorption cycles and surface modification on the adsorption performance of HACM were investigated,and good purification result was achieved.The adsorption amount of toluene on HACM is about 6.5wt% under the adsorption temperature of 25（°C）,the space velocity of 10000 h^-1 and the toluene concentration of 500 mg/m^3,and toluene can be completely desorbed at 250（°C）.

关 键 词：挥发性有机废气净化 蜂窝状活性炭 甲苯 吸附 

分 类 号：X701[环境科学与工程—环境工程]