Pulsed Corona Discharge for Removal of NOx from Flue Gas
Pulsed Corona Discharge for Removal of NOx from Flue Gas
复制标题
脉冲电晕放电去除烟气中的氮氧化物
DOI：
10.1007/978-3-642-78476-7_15
复制
发表时间：
1993
期刊：
影响因子：
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通讯作者：
B. Penetrante
中科院分区：
文献类型：
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作者：
G. Vogtlin;B. Penetrante
有许多类型的非热放电装置已被研究用于环境应用。这些装置销毁污染物或有毒分子的潜力已经在几种情况下得到证明，例如发电厂烟道气中的NOx和SO2 [Dinelli等人，1990年; Frank和Hirano，1990年]和柴油发动机排气[Higashi等人，1992年]，工业废水中的重金属[增田等人，1987年]和挥发性有机化合物[Yamamoto等人，1992年]，以及模拟神经毒气等化学制剂[Fraser等人，1985年]。这些设备的工作原理相同：产生放电，其中大部分电能用于产生高能电子，而不是用于气体加热。尽管电子在大气压条件下寿命很短，很少与污染物分子发生碰撞，但它们会与占主导地位的背景气体分子发生许多碰撞，从而产生自由基，进而分解有毒化合物。该方法的效率来自于自由基具有长寿命并且选择性地与污染物分子反应的事实。
There are many types of non-thermal discharge devices that have been investigated for environmental applications. The potential of these devices for the destruction of pollutants or toxic molecules has already been demonstrated in several contexts, such as NOxand SO2in power plant flue gases [Dinelli et al. 1990; Frank and Hirano 1990] and diesel engine exhaust [Higashi et al. 1992], heavy metals [Masuda et al. 1987] and volatile organic compounds [Yamamoto et al. 1992] in industrial effluents, and chemical agents such as simulated nerve gases [Fraser et al. 1985]. These devices operate on the same basic principle: produce a discharge in which a majority of the electrical energy goes into the production of energetic electrons, rather than into gas heating. Even though the electrons are short-lived under atmospheric pressure conditions and rarely collide with a pollutant molecule, they undergo many collisions with the dominant background gas molecules, thus producing radicals that, in turn, decompose the toxic compounds. The efficiency of the approach arises from the fact that the radicals have long lifetimes and react selectively with the contaminant molecules.
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