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

被引：45

作者：

Futamura, S ^{[1
]}

Einaga, H ^{[1
]}

Zhang, AH ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058569, Japan

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2001年 / 37卷 / 04期

关键词：

decomposition efficiency; hazardous air pollutants; nonthermal plasma; reactivity; reactor type;

D O I：

10.1109/28.936387

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The performance of three different types of plasma reactors such as ferroelectric packed-bed (FPR), pulsed corona (PCR), and silent discharge (SDR) were compared in the decomposition of trichloroethylene (Cl-2 C=CHCl, TCE), bromomethane (CH3Br). and tetrafluoromethane (CF4). Irrespective of reactors, hazardous air pollutant (HAP) reactivity in dry N-2 decreased in the order: TCE > CH3Br > CF4. Similar byproducts were obtained with any of the above reactors, and similar trends were observed in the HAP decomposition rate-retarding effect by water. Only for SDR, TCE decomposition was accelerated by O-2 in the background gas. The most plausible active oxygen species is considered to be the triplet oxygen atom. In the reaction systems where chemically induced decomposition of HAPs can occur, as in the case of TCE, PCR is expected to exceed FPR and SDR in performance. In the cases of CH3Br and CF4, residence time has been the most important factor governing their decomposition rates, and FPR and SDR have shown higher performance than PCR.

引用

页码：978 / 985

页数：8

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