Catalytic abatement of volatile organic compounds assisted by non-thermal plasma - Part 1. A novel dielectric barrier discharge reactor containing catalytic electrode
Catalytic abatement of volatile organic compounds assisted by non-thermal plasma - Part 1. A novel dielectric barrier discharge reactor containing catalytic electrode
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DOI：
10.1016/j.apcatb.2006.01.006
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发表时间：
2006-05-15
影响因子：
22.1
通讯作者：
Kiwi-Minsker, L.
中科院分区：
文献类型：
--
作者：
Subrahmanyam, Ch.;Magureanu, A.;Kiwi-Minsker, L.
开发了一种新型常压介质阻挡放电(DBD)催化反应器，用于去除挥发性有机物(VOCs)。DBD反应器的新颖之处在于兼具内电极功能的金属催化剂。催化电极是由圆柱形的烧结金属纤维(SMF)制成的。通过浸渍的方法在SMF上沉积了锰和钴的氧化物。以甲苯为模型挥发性有机化合物(<；1000ppm空气)进行了分解研究。系统地改变了催化剂组成、甲苯浓度、施加电压和频率来评价DBD反应器的性能。当甲苯浓度为100ppm时，以235J/L的比输入能在DBD反应器中实现了接近100%的转化率，与SMF催化电极的化学组成无关，但对CO2的选择性是催化剂组成的函数。MnOx/SMF催化电极表现出最好的全氧化性能。在SIE为295J/L时，对CO_2的选择性为80%，甲苯转化率为100%。电极上没有沉积碳固体残留物。(C)2006爱思唯尔B.V.保留所有权利。
A novel catalytic reactor with dielectric barrier discharge (DBD) at atmospheric pressure was developed for the abatement of volatile organic compounds (VOCs). The novelty of DBD reactor is the metallic catalyst serving also as the inner electrode. The catalytic electrode was prepared from sintered metal fibers (SMF) in the form of a cylindrical tube. Oxides of Mn and Co were deposited on SMF by impregnation. Decomposition of toluene taken as the model VOC compound (< 1000 ppm in air) was investigated. The catalyst composition, toluene concentration, applied voltage and frequency were systematically varied to evaluate the performance of the DBD reactor. At 100 ppm of toluene, the conversion similar to 100% was achieved in the DBD reactor using a specific input energy (SIE) similar to 235 J/l independently of the chemical composition of the SMF catalytic electrode, but the selectivity to CO2 was observed to be a function of the catalyst composition. The MnOx/SMF catalytic electrode showed the best performance towards total oxidation. At a SIE of 295 J/l, the selectivity to CO2, was 80% with 100% conversion of toluene. No carbon solid residues were deposited on the electrode. (c) 2006 Elsevier B.V. All rights reserved.