Regulation characteristics of oxide generation and formaldehyde removal by using volume DBD reactor

Bingyan CHEN (陈秉岩); Xiangxiang GAO (高香香); Ke CHEN (陈可); Changyu LIU (刘昌裕); Qinshu LI (李沁书); Wei SU (苏巍); Yongfeng JIANG (蒋永锋); Xiang HE (何湘); Changping ZHU (朱昌平); Juntao FEI (费峻涛)

doi:10.1088/2058-6272/aa9b7a

Plasma Science and Technology > 2018 > 20(2): 24009-024009. > DOI: 10.1088/2058-6272/aa9b7a

Bingyan CHEN (陈秉岩), Xiangxiang GAO (高香香), Ke CHEN (陈可), Changyu LIU (刘昌裕), Qinshu LI (李沁书), Wei SU (苏巍), Yongfeng JIANG (蒋永锋), Xiang HE (何湘), Changping ZHU (朱昌平), Juntao FEI (费峻涛). Regulation characteristics of oxide generation and formaldehyde removal by using volume DBD reactor[J]. Plasma Science and Technology, 2018, 20(2): 24009-024009. DOI: 10.1088/2058-6272/aa9b7a

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Regulation characteristics of oxide generation and formaldehyde removal by using volume DBD reactor

1 Department of Mathematics and Physics, Hohai University, Changzhou 213022, People’s Republic of China 2 Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Changzhou 213022, People’s Republic of China 3 College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, People’s Republic of China

Funds: This work was partially supported by the Fundamental Research Funds for the Central Universities (2017B15214), the Research Fund of Innovation and Entrepreneurship Education Reform for Chinese Universities (16CCJG01Z004), the Changzhou Science and Technology Program (CJ20160027), National Natural Science Foundation of China (11274092, 61705058) and the Natural Science Foundation of the Jiangsu Province (BK20170302).

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Received Date: June 11, 2017

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Abstract

Abstract

Discharge plasmas in air can be accompanied by ultraviolet (UV) radiation and electron impact, which can produce large numbers of reactive species such as hydroxyl radical (OH·), oxygen radical (O·),ozone (O₃), and nitrogen oxides (NO_x), etc. The composition and dosage of reactive species usually play an important role in the case of volatile organic compounds (VOCs) treatment with the discharge plasmas. In this paper, we propose a volume discharge setup used to purify formaldehyde in air, which is configured by a plate-to-plate dielectric barrier discharge (DBD) channel and excited by an AC high voltage source. The results show that the relative spectral-intensity from DBD cell without formaldehyde is stronger than the case with formaldehyde. The energy efficiency ratios (EERs) of both oxides yield and formaldehyde removal can be regulated by the gas flow velocity in DBD channel, and the most desirable processing effect is the gas flow velocity within the range from 2.50 to 3.33 m s^-1. Moreover, the EERs of both the generated dosages of oxides (O₃ and NO₂) and the amount of removed formaldehyde can also be regulated by both of the applied voltage and power density loaded on the DBD cell. Additionally, the EERs of both oxides generation and formaldehyde removal present as a function of normal distribution with increasing the applied power density, and the peak of the function is appeared in the range from 273.5 to 400.0 W l ^-1. This work clearly demonstrates the regulation characteristic of both the formaldehyde removal and oxides yield by using volume DBD, and it is helpful in the applications of VOCs removal by using discharge plasma.
- reactive species,
- volume DBD,
- energy efficiency ratio (EER),
- regulation and control

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References (68)

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