465545 Effect of MnO2 Catalyst on Nonthermal Plasma Reactor Combined with Ceramic Filter for Trichloroethylene Decomposition

Monday, November 14, 2016: 3:45 PM
Union Square 13 (Hilton San Francisco Union Square)
Yuta Yasuda1, Masanori Ochi2, Tatsushi Matsuyama3 and Junichi Ida3, (1)faculty of engineering, Soka University, Hachioji,Tokyo, Japan, (2)Faculty of Science and Engineering, Soka University, Hachioji, Tokyo, Japan, (3)Department of Science and Engineering for Sustainable Innovation, Faculty of Science and Engineering, Soka University, Hachioji, Tokyo, Japan

This paper attempts to improve the energy efficiency and to reduce by-products generation of the authors’ nonthermal plasma reactor for VOC treatment by combining with MnO2 catalyst. In the experiments, trichloroethylene is used as a model VOC and two location of setting the MnO2 catalyst as “inside the reactor” and “downstream of the reactor” was tried. The results demonstrated that energy efficiency to decompose TCE was improved by combining with the MnO2 catalyst for both location conditions of “inside” and “downstream” of the reactor. As to by-product reduction, although without catalyst case, small amount of phosgene, dichloroacetylchloride (DCAC), pentachloroethane (PCE), tetrachloroethane (TCE) generation was observed, tetrachloroethane generation was under the detection limit and other by-products generation was also reduced with the MnO2 catalyst for “downstream” case. Moreover, when the catalyst was placed “inside” the reactor, phosgene and DCAC was also under the detection limit. These results indicated the significant effect of MnO2 catalyst to our nonthermal reactor for VOC treatment.

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