The Effects of Inner Electrode Diameter on the Performance of Dielectric Barrier Discharge Reactor for Desulfurization and Denitrification

Cai, Yunkai; Li, Lin; Lü, Xinpei

doi:10.1109/tps.2021.3049126

Cited by 9 publications

(11 citation statements)

References 37 publications

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“…With the same NO oxidation efficiency, the energy consumption of the screwed electrode is higher. In 2021, Cai YK et al [70] used 10% O2, 7% CO2, 820 ppm NO, 320 ppm SO2, 200 ppm C3H6, 3.1% H2O, and N2 (balance) to simulate actual diesel exhaust. The OES of N2(C 3 ∏u→B 3 ∏g, 2−5, 394.3 nm) and N2 + (B2∑g + →X2∑g + , 0−0, 391.4 nm) were measured to detect the E/N in the discharge gap (as shown in Figure 10a).…”

Section: Research On Energy Consumption Optimization Based On Plasma ...mentioning

confidence: 99%

The Removal of CH4 and NOx from Marine LNG Engine Exhaust by NTP Combined with Catalyst: A Review

et al. 2023

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Compared to diesel, liquefied natural gas (LNG), often used as an alternative fuel for marine engines, comes with significant advantages in reducing emissions of particulate matter (PM), SOx, CO2, and other pollutants. Promoting the use of LNG is of great significance for achieving carbon peaking and neutrality worldwide, as well as improving the energy structure. However, compared to diesel engines, medium- and high-speed marine LNG engines may produce higher methane (CH4) emissions and also have nitrogen oxide (NOx) emission issues. For the removal of CH4 and NOx from the exhaust of marine LNG engines, the traditional technical route of combining a methane oxidation catalyst (MOC) and an HN3 selective catalytic reduction system (NH3-SCR) will face problems, such as low conversion efficiency and high operation cost. In view of this, the technology of non-thermal plasma (NTP) combined with CH4-SCR is proposed. However, the synergistic mechanism between NTP and catalysts is still unclear, which limits the optimization of an NTP-CH4-SCR system. This article summarizes the synergistic mechanism of NTP and catalysts in the integrated treatment process of CH4 and NOx, including experimental analysis and numerical simulation. And the relevant impact parameters (such as electrode diameter, electrode shape, electrode material, and barrier material, etc.) of NTP reactor energy optimization are discussed. The work of this paper is of great significance for guiding the high-efficiency removal of CH4 and NOx for an NTP-CH4-SCR system.

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Section: Research On Energy Consumption Optimization Based On Plasma ...mentioning

confidence: 99%

The Removal of CH4 and NOx from Marine LNG Engine Exhaust by NTP Combined with Catalyst: A Review

et al. 2023

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“…BOLSIG+ is a computer program that is widely used to numerically solve the Boltzmann equation for electrons in various types of gas discharges and collisional low-temperature plasmas. [46][47][48][49] By setting parameters such as gas components, collision cross-section and measured reduced electric field, the program can directly output the results of the electron energy distribution function, which allows to calculate the corresponding mean electron energy according to eqn (4), where e denotes the mean electron energy, f 0 denotes the EEDF, and e is the electron energy.…”

Section: Reduced Electric Field and Electron Energy Measurementmentioning

confidence: 99%

Reduced electric field and gas temperature effects on chemical product dynamics in air surface dielectric barrier discharges: from macro-physical parameters to micro-chemical mechanisms

Liu

Zuo

Ran

et al. 2022

Phys. Chem. Chem. Phys.

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“…The discharge power in the DBD reactor has an important influence on the oxidation of NO and SO 2 [30,31]. The desulfurization and denitration efficiency levels of the system at various discharge power levels are presented in Figure 9.…”

Section: Discharge Power In the Dbd Reactormentioning

confidence: 99%

“…Zhao et al studied the effects of NaClO, NaClO 2 , and NaClO 3 solutions on denitration using an EB combined with a wet scrubber [29]. In our previously studies, we discussed the effects of the DBD reactor structure on the oxidative removal of NO and SO 2 [30,31].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Simultaneous Desulfurization and Denitrification by DBD Combined with Wet Scrubbing

2021

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A dielectric barrier discharge (DBD) reactor combined with a wet scrubbing tower was used to carry out an experimental study on desulfurization and denitrification. The effects of the packing type, packing height, spray density, mass fraction of the NaOH solution, discharge power in the DBD reactor, and simulated flue gas flow rate on the desulfurization and denitrification efficiency were analyzed, along with the influence weight of each factor, using orthogonal testing. The experimental results showed that SO2 was easily absorbed by the scrubbing solution, while the desulfurization efficiency remained at a high level (97–100%) during the experiment. The denitration efficiency was between 12 and 96% under various operating conditions. Denitration is the key problem in this system. The influence weights of the DBD power, simulated flue gas flow rate, mass fraction of the NaOH solution, spray density, packing type, and packing height on the denitration efficiency were 56.96%, 18.02%, 11.52%, 5.02%, 4.33%, and 4.16%, respectively. This paper can provide guidance to optimize the desulfurization and denitrification efficiency of this DBD reactor combined with a wet scrubbing system.

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The Effects of Inner Electrode Diameter on the Performance of Dielectric Barrier Discharge Reactor for Desulfurization and Denitrification

Cited by 9 publications

References 37 publications

The Removal of CH4 and NOx from Marine LNG Engine Exhaust by NTP Combined with Catalyst: A Review

The Removal of CH4 and NOx from Marine LNG Engine Exhaust by NTP Combined with Catalyst: A Review

Reduced electric field and gas temperature effects on chemical product dynamics in air surface dielectric barrier discharges: from macro-physical parameters to micro-chemical mechanisms

Experimental Study on Simultaneous Desulfurization and Denitrification by DBD Combined with Wet Scrubbing

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