Nitric Oxide Oxidation and Its Removal in Mist by Nonthermal Plasma: Effects of Discharge Conditions

Nitric Oxide Oxidation and Its Removal in Mist by Nonthermal Plasma: Effects of Discharge Conditions
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非热等离子体雾气中一氧化氮的氧化及其去除:放电条件的影响

DOI:
10.1021/acs.iecr.7b02329
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发表时间:
2017-09
影响因子:
4.2
通讯作者:
Xiaowei Hong
Xiaowei Hong
中科院分区:
工程技术3区
文献类型:
--
作者:
Deyuan Xie;Ye Sun;Tianle Zhu;Liyuan Hou;Xiaowei Hong

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采用同轴式低温等离子体(NTP)反应器去除雾中的一氧化氮。研究了放电间隙、棘数、齿片数以及放电极性对NO氧化和NOx去除的影响。减小放电间隙有利于NO的氧化和NOx的脱除。即使在相对低的输入能量下,雾也几乎被完全捕获。增加放电片的刺数或齿片数有利于等离子体反应器中的能量输入,从而在固定的外加电压下增强NO的氧化和NOx的去除。正DC的能量效率(4.5g NO/kWh)是负DC的能量效率(1.5g NO/kWh)的三倍,对应于约80%的NO氧化效率。
A coaxial nonthermal plasma (NTP) reactor was used for the removal of nitric oxide in mist. The effects of discharge gap, thorn number, tooth slice number as well as discharge polarity on NO oxidation and NOx removal were investigated. Decreasing the discharge gap is favorable for the NO oxidation and NOx removal. The mist is almost captured completely even under a relative low input energy. Increasing the thorn number of discharge slice or tooth slice number facilitates the energy input in the plasma reactor and thus enhances the NO oxidation and NOx removal under a fixed applied voltage. The energy efficiency for the positive DC (4.5 g NO/kWh) is three times as much as that for the negative DC (1.5 g NO/kWh), corresponding to NO oxidation efficiency of around 80%.
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