Nitrogen oxide removal by non-thermal plasma for marine diesel engines

Wang, Zongyu; Kuang, Hailang; Zhang, Jifeng; Chu, Lilin; Ji, Yulong

doi:10.1039/c8ra09217f

Cited by 26 publications

(19 citation statements)

References 40 publications

(42 reference statements)

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“…The gas distribution system is composed of several high-pressure gas cylinders, pressure reducing valves, and mass flow controllers (Beijing Sevenstar CS200AD, Beijing, China). For more details of the gas distribution system, please refer to Reference [19]. The O 2 used in the experiment is highpurity standard gas, and the NO/NO 2 used N 2 as the standard carrier gas (Dalian Date Gas Co., Ltd., Dalian, China).…”

Section: Experimental Systemmentioning

confidence: 99%

“…When KCL solution was introduced as the ground electrode in the present study, the electrical characteristic curves of the coaxial cylindrical DBD reactor are shown in Figure 3, where U out (V) and U m (V) represent the output voltage and the capacitor voltage after sampling the current, respectively. The detailed calculation process of the current can be found in Reference [19]. The current flowing through the loop varies with U m .…”

Section: Electrical Parameter Characteristics Of the Dbd Reactormentioning

confidence: 99%

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Effect of Liquid Grounding Electrode on the NOx Removal by Dielectric Barrier Discharge Non-Thermal Plasma

et al. 2021

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In this paper, an experimental setup was established to study the influence of potassium chloride (KCL) solution as the ground electrode on the nitrogen oxides (NOx) removal efficiency in non-thermal plasma (NTP) generated by dielectric barrier discharging (DBD) reactor. The experimental results show that the KCL solution as the ground electrode has better stability and higher discharge intensity and it is a promising approach to improve NOx removal efficiency. The specific NOx removal efficiency is related to the power frequency, the concentration and temperature of the KCL solution. As the power frequency increases, the NOx removal efficiency first increases and then decreases, and a maximum value is reached at the power frequency of 8 kHz. The NO removal effect is improved as the concentration of the KCL solution increases, especially when the concentration is lower than 0.1 mol/L. Under the same KCL solution concentration and input energy density, the NOx removal efficiency is increased with the solution temperature. In particular, when the power discharge frequency is 8 kHz, the KCL solution concentration is 0.1 mol/L and the solution temperature is 60 °C, the NOx and NO removal efficiency reach 85.82% and 100%, respectively.

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Section: Experimental Systemmentioning

confidence: 99%

Section: Electrical Parameter Characteristics Of the Dbd Reactormentioning

confidence: 99%

Effect of Liquid Grounding Electrode on the NOx Removal by Dielectric Barrier Discharge Non-Thermal Plasma

et al. 2021

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“…Moreover, applying nonthermal plasma technology, many highly active oxidizing species (O•, •OH, O 3 , etc.) can be generated, thus favoring the oxidation of NO to NO 2 and the conversion of NO x to nitric/nitrous acid, more easily eliminable compounds [79]. The most common NTP reactors applied for the NO x removal are electron beam irradiation (EBI), dielectric barrier discharge (DBD) and corona discharge reactors (CDR) [77].…”

Section: Nox Catalytic Removal Via Ntp Technologymentioning

confidence: 99%

A Review about the Recent Advances in Selected NonThermal Plasma Assisted Solid–Gas Phase Chemical Processes

et al. 2020

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Plasma science has attracted the interest of researchers in various disciplines since the 1990s. This continuously evolving field has spawned investigations into several applications, including industrial sterilization, pollution control, polymer science, food safety and biomedicine. nonthermal plasma (NTP) can promote the occurrence of chemical reactions in a lower operating temperature range, condition in which, in a conventional process, a catalyst is generally not active. The aim, when using NTP, is to selectively transfer electrical energy to the electrons, generating free radicals through collisions and promoting the desired chemical changes without spending energy in heating the system. Therefore, NTP can be used in various fields, such as NOx removal from exhaust gases, soot removal from diesel engine exhaust, volatile organic compound (VOC) decomposition, industrial applications, such as ammonia production or methanation reaction (Sabatier reaction). The combination of NTP technology with catalysts is a promising option to improve selectivity and efficiency in some chemical processes. In this review, recent advances in selected nonthermal plasma assisted solid–gas processes are introduced, and the attention was mainly focused on the use of the dielectric barrier discharge (DBD) reactors.

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“…Non-thermal plasma (NTP) assisted catalytic processes have been extensively studied due to the interest in applying them in industrial, environmental and medical fields of research [1][2][3][4][5][6][7][8][9][10][11][12] , especially pollution control [13][14][15][16][17][18][19] and surface decontamination 20,21 . In comparison to traditional thermally activated catalytic processes, NTP technology can provide an alternative way to promote catalytic reactions using highly reactive species such as free radicals, charged ions, atoms, excited molecules and electrons, formed in the plasma discharge by the dissociation of gas molecules in the reaction feed.…”

Section: Introductionmentioning

confidence: 99%

A design of a fixed bed plasma DRIFTS cell for studying the NTP-assisted heterogeneously catalysed reactions

Stere

Chansai

Gholami

et al. 2020

Catal. Sci. Technol.

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Nitrogen oxide removal by non-thermal plasma for marine diesel engines

Abstract: The experimental study on exhaust denitration is carried out by using dielectric barrier discharge (DBD) reactor to generate non-thermal plasma (NTP).

Cited by 26 publications

References 40 publications

Effect of Liquid Grounding Electrode on the NOx Removal by Dielectric Barrier Discharge Non-Thermal Plasma

Effect of Liquid Grounding Electrode on the NOx Removal by Dielectric Barrier Discharge Non-Thermal Plasma

A Review about the Recent Advances in Selected NonThermal Plasma Assisted Solid–Gas Phase Chemical Processes

A design of a fixed bed plasma DRIFTS cell for studying the NTP-assisted heterogeneously catalysed reactions

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