摘要
应用脉冲电晕放电,在线板式反应器内对乙硫醇的降解特性进行了实验研究,考察了峰值电压、重复频率、进口浓度、介质阻挡等单因素对去除率的影晌。结果表明,脉冲电晕放电能有效地去除气体中的恶臭物乙硫醇。当进口浓度365mg/m3、处理气量10m3／h、峰值电压70kV、重复频率200s-1时,乙硫醇去除率可达85％,此时反应器的能量利用率为12.2g／(kW·h)。陶瓷板阻挡的使用有助于去除率的提高,当能量密度为65kJ／m3时,使用和未使用陶瓷板乙硫醇的去除率分别为93％和80％。乙硫醇中硫元素主要转化为二氧化硫,还发现有单质硫产生。
Decomposition of ethanethiol in air was investigated experimentally utilizing a wire plate pulse corona reactor. A new type of high pulse voltage source with a thyratron switch and a Blumlein pulse-forming network (BPFN) was adopted in the experiments. The influences on the removal efficiency, including peak voltage, pulse frequency, initial concentration, dielectric-barrier, were investigated. The results showed that ethanethiol can be treated effectively. The removal efficiency 85% was obtained when initial concentration of ethanethiol was 365 mg/m3, peak voltage 70 kV, pulse frequency 200 s-1, the energy yield of ethanethiol was 12. 2 g / kW-1·h-1. The removal efficiency 93% was achieved by 450mg/m3 ethanethiol when ceramic plate was used and energy density was 65 kJ/m3. While the removal efficiency was only 80% without ceramic plate under the same energy density. The sulfur element of ethanethiol was mainly transformed to sulfur dioxide, and sulfur was found in the reactor.
出处
《化学反应工程与工艺》
CAS
CSCD
北大核心
2004年第4期316-321,共6页
Chemical Reaction Engineering and Technology
基金
杭州市"5112"工程专项基金(2002121A13)
