文献类型：期刊文献

中文题名：轻烃类VOCs在活性炭上的动态吸附行为

英文题名：Dynamic adsorption behavior of light hydrocarbon VOCs on activated carbon

作者：张晓露[1];鞠峰[1];栾辉[2,3];修光利[2];凌昊[1]

机构：[1]华东理工大学化工学院,上海200237;[2]华东理工大学资源与环境工程学院,上海200237;[3]中国石油安全环保技术研究院,北京102206

年份：2018

卷号：38

期号：4

起止页码：437

中文期刊名：化工环保

外文期刊名：Environmental Protection of Chemical Industry

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2017_2018】；

语种：中文

中文关键词：活性炭;挥发性有机物(VOCs);动态吸附;竞争吸附;轻烃

外文关键词：activated carbon;volatile organic compounds（VOCs）;dynamic adsorption;competition adsorption;light hydrocarbon

摘要：采用BET,XRD,FTIR技术对两类椰壳活性炭进行了表征,考察了空速和吸附温度对正戊烷和正己烷动态吸附穿透容量(DPC)及穿透时间的影响,并对正戊烷和正己烷的二元竞争吸附过程进行了研究。结果表明:两类活性炭材料的组成和官能团结构相似,具有大量微孔的片状活性炭(FAC)有利于轻烃类VOCs的吸附;采用FAC吸附正己烷时,DPC对空速和温度变化不敏感;二元竞争吸附过程中,开始阶段正戊烷和正己烷同时被吸附,随后已被吸附的正戊烷被强吸附质正己烷部分置换,直至正己烷吸附饱和,与一元吸附相比,正己烷的DPC和饱和吸附容量略有增加,正戊烷的DPC和饱和吸附容量大幅降低。
The two types of coconut-shell activated carbon were characterized by BET,XRD and FTIR. The effects of space velocity and adsorption temperature on dynamic penetrating adsorption capacity（DPC）and penetration time of n-pentane and n-hexane were investigated,and the competitive adsorption of n-pentane and n-hexane was also studied. The results showed that：The two types of activated carbon were similar in the material composition and functional structure,the flake activated carbon（FAC）with rich microporous structure had advantageous to the adsorption of light hydrocarbon VOCs;The DPC of n-hexane adsorbed onto FAC was not sensitive to space velocity and temperature;In the process of binary competition adsorption,n-pentane and n-hexane were both adsorbed onto FAC at the beginning,and then n-hexane as strong adsorbate replaced n-pentane partially until adsorption saturation of n-hexane;Comparing with individual adsorption,the DPC and saturated adsorption capacity of n-hexane were both increased slightly and those of n-pentane were decreased significantly.