Comparison of reactor performance in the nonthermal plasma chemical processing of hazardous air pollutants

Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370) Pub Date : 1999-10-03 DOI:10.1109/IAS.1999.801642

S. Futamura, H. Einaga, A. Zhang

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引用次数: 39

Abstract

The performances of three different types of plasma reactors such as ferroelectric packed-bed (FPB), pulsed corona (PCR), and silent discharge (SDP) were compared in the decomposition of trichloroethylene (Cl/sub 2/C=CHCl, TCE), bromomethane (CH/sub 3/Br), and tetrafluoromethane (CF/sub 4/). Irrespective of reactors, HAP (hazardous air pollutants) reactivity decreased in the order: TCE>CH/sub 3/Br>CF/sub 4/. Similar byproducts were obtained with any of the above reactors, and similar trends were observed in the HAP decomposition rate-retarding effect by gaseous oxygen and water. In the TCE decomposition, PCR was extremely effective and 1000 ppm of TCE almost completely decomposed in dry nitrogen at 0.09 s of residence time, but its performance went down in the CH/sub 3/Br decomposition. Comparable performances were observed for FPB and SDP, and CF/sub 4/ conversions were little higher with SDP than with FPB at the same specific energy densities.

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非热等离子体化学处理有害空气污染物反应器性能比较

比较了铁电填料床(FPB)、脉冲电晕(PCR)和静默放电(SDP)三种不同类型等离子体反应器在分解三氯乙烯(Cl/sub 2/C=CHCl, TCE)、溴甲烷(CH/sub 3/Br)和四氟甲烷(CF/sub 4/)中的性能。不同反应器的HAP反应性依次为:TCE>CH/sub - 3/Br>CF/sub - 4/。上述反应器均获得了相似的副产物，并且在气态氧和水对HAP分解速率的减缓作用中也观察到相似的趋势。在TCE的分解中，PCR的分解效果非常好，1000ppm的TCE在干氮中停留0.09 s时几乎完全分解，但在CH/sub - 3/Br分解中，PCR的分解效果有所下降。FPB和SDP的性能相当，在相同的比能密度下，SDP的CF/sub 4/转化率略高于FPB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370)

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