The removal of dichloromethane from atmospheric pressure air streams using plasma-assisted catalysis

被引:38
作者
Wallis, Anna E. [1 ]
Whitehead, J. C. [1 ]
Zhang, Kui [1 ]
机构
[1] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England
基金
英国工程与自然科学研究理事会;
关键词
dichloromethane; non-thermal plasma; catalysis; alumina; titanium dioxide; zeolites;
D O I
10.1016/j.apcatb.2006.11.003
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Plasma-assisted catalysis was used for the destruction of similar to 500 ppm of dichloromethane, CH2Cl2 (DCM), in gas streams of air using a non-thermal, atmospheric pressure plasma utilising a dielectric packed bed. The combination of plasma and catalyst gave improved destruction of DCM. Eight catalysts which including alumina, TiO2 and various zeolites were investigated with the finding that alumina in a one-stage reactor configuration and TiO2 and HZSM-5 in two-stage configurations gave the best DCM destructions. The sodium zeolites are capable of reducing by similar to 50% the unwanted NOx by-products, formed by plasma processing in air. The nature of the catalyst is, important in terms of the destruction efficiency, end-product selectivity and NOx reduction. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:282 / 288
页数:7
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