热电冷凝VOCs  

Condensation of VOCs by thermoelectric

作　　者：谢兰英[1] 罗灵爱 李忠[3] 

机构地区：[1]常德卷烟厂技术中心,湖南常德415000 [2]法国萨瓦大学尚贝里工程师学院,法国73376 [3]华南理工大学化工与能源学院,广东广州510640

出　　处：《广东化工》2005年第6期11-14,共4页Guangdong Chemical Industry

基　　金：法国大使馆;国家科技部中法先进研究计划项目(PRAE01-01);国家自然科学基金重点资助项目(No:29936100)联合资助

摘　　要：本文研究了用热电制冷器冷凝三种VOCs的实验,并考察了时间、电功和热端温度对热电冷凝VOCs气体过程的影响。研究结果表明热电冷凝VOCs具有非常快的冷凝速率,只需1.5分钟就可以把115℃高温的VOCs气体冷凝至-10℃的气体,出口气体分压显著下降;实验结果还表明随着热电制冷器热端温度的升高,出口气体温度也相应的增加,体系所耗电功也增大,制冷系数降低。Thermoelectric refrigeration technique was used to condensate the vapor of the VOCs with high temperature and high concentration. The effects of condensation time,electric power and the temperature of hot face of the thermoelectric module on the condensation process were investigated. Results indicated that the use of thermoelectric refrigeration can quickly condensate the VOCs to the designed temperature within 1.5 min, and the partial pressures of the VOCs in the exit gas became very low. With the increase of the temperature of the hot face of the thermoelectric module, the temperature of exit gas and the required electric power increased.

关 键 词：VOCS 热电制冷器 冷凝速率 制冷系数 挥发性有机污染物 大气污染 工艺流程 

分 类 号：X51[环境科学与工程—环境工程] X505