Performance evaluation of hybrid systems comprising silent discharge plasma and catalysts for VOC control
Performance evaluation of hybrid systems comprising silent discharge plasma and catalysts for VOC control
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用于 VOC 控制的由无声放电等离子体和催化剂组成的混合系统的性能评估
DOI：
10.1109/ias.2000.881932
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
S. Futamura
中科院分区：
文献类型：
--
作者：
H. Einaga;T. Ibusuki;S. Futamura
使用由无声放电等离子体（SDP）和氧化锰（MnO/sub 2/）催化剂组成的混合系统来分解空气中的苯。通过将MnO/sub 2/与后段的SDP反应器相结合，大大提高了苯的分解效率。 MnO/sub 2/催化剂利用SDP中形成的臭氧作为氧化剂前体来分解苯。随着空气中水蒸气量的增加，苯分解的效率降低，部分原因是SDP反应器中O/sub 3/的形成减少。仅获得CO/sub 2/和CO作为产物。由于反应过程中在 MnO/sub 2/ 上形成中间体，碳质量平衡并不完美。随后，在 O/sub 3/ 存在下，中间体被 MnO/sub 2/ 分解为 CO/sub 2/ 和 CO。在干燥空气中，对 CO/sub 2/ 和 CO 的选择性分别为 70% 和 30%，并且几乎与 SED 无关。通过加湿反应气体，CO/sub 2/选择性提高至90%。
A hybrid system comprising silent discharge plasma (SDP) and manganese oxide (MnO/sub 2/) catalyst was used for the decomposition of benzene in air. The efficiency for the benzene decomposition was greatly enhanced by combining MnO/sub 2/ with the SDP reactor in the latter part. The MnO/sub 2/ catalyst decomposed benzene by using ozone, which was formed in SDP as the oxidant precursor. With increase in the amount of water vapor in air, the efficiency for the benzene decomposition was decreased, partly due to the diminished formation of O/sub 3/ in the SDP reactor. Only CO/sub 2/ and CO were obtained as the products. The carbon mass balance was not perfect due to the formation of intermediates on MnO/sub 2/ during the reaction. The intermediates were subsequently decomposed to CO/sub 2/ and CO by MnO/sub 2/ in the presence of O/sub 3/. In dry air, the selectivities to CO/sub 2/ and CO were 70% and 30%, respectively, and were almost independent of SED. The CO/sub 2/ selectivity was improved to 90% by humidifying the reaction gas.