Non-thermal plasma coupled with catalysis for VOCs abatement: A review

Qu, Miaomiao; Cheng, Zhuowei; Sun, Zhirong; Chen, Dongzhi; Yu, Jianming; Chen, Jianmeng

doi:10.1016/j.psep.2021.06.028

Cited by 89 publications

(25 citation statements)

References 231 publications

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“…Therefore, a balance between these three terms is vital for the development of an effective removal process for TCE in the NTP system. As reported in the literature [10,12], the overall reaction activity of the NTP system strongly depends on multiple operating conditions. Thus, it is essential to optimize the TCE removal in the NTP system with multiple input factors and multiple output responses.…”

Section: Optimization and Validationmentioning

confidence: 86%

“…However, these conventional technologies seem to be less attractive for the treatment of dilute CVOCs present in high-volume gases. For instance, thermal oxidation is not suitable to clean a high volume of air with low CVOCs concentration due to their restrictions and high-costs [10].…”

Section: Introductionmentioning

confidence: 99%

“…It is noteworthy that the NTP technology can overcome the thermodynamic barrier and empower the thermodynamically unfavorable reactions to proceed at ambient temperature [16]. Dielectric barrier discharges and corona discharges are widely used for treatment of air pollution control [10,17,18]. The corona discharge is preferred due to its scalability and low cost for installation, which shows great potential for use in realistic industrial applications [19,20].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Plasma degradation of trichloroethylene: process optimization and reaction mechanism analysis

Tian¹,

Ma²,

Nikiforov³

et al. 2021

J. Phys. D: Appl. Phys.

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In this study, a multi-pin-to-plate negative glow discharge reactor was employed to degrade the hazardous compound, trichloroethylene (TCE). The response surface methodology (RSM) was applied to examine the influences of various process factors (relative humidity (RH), gas flow rate, and discharge power) on the TCE decomposition process, with regard to the TCE removal efficiency, CO2 and CO selectivities. The variance analysis was used to estimate the significance of the single process factors and their interactions. It has been proved that the discharge power had the utmost influential impact on the TCE removal efficiency, CO2 and CO selectivities, subsequently the gas flow rate, and finally RH. Under the optimal conditions with 20.83% RH, 2 W discharge power and 0.5 L·min–1 gas flow rate, the optimal TCE removal efficiency (86.05%), CO2 selectivity (8.62%), and CO selectivity (15.14%) were achieved. In addition, a possible TCE decomposition pathway was proposed based on the investigation of byproducts identified in the exhaust gas of the NTP reactor. This work paves a way for the control of chlorinated volatile organic compounds.

show abstract

Section: Optimization and Validationmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Plasma degradation of trichloroethylene: process optimization and reaction mechanism analysis

Tian¹,

Ma²,

Nikiforov³

et al. 2021

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…In the IPC system, the interactions between plasma and catalyst are rather complex. In such a configuration, the introduction of catalysts can change the discharge type and the distribution of accelerated electrons, creating more micro-discharges and new reactive species in the porous volume of the catalyst (Huang et al, 2015a;Qu et al, 2021;Xiao et al, 2014). Vice versa, the reactive plasma species could modify the catalyst properties or work function, which further affect the surface adsorption of VOCs, which can further contribute to the oxidation process of VOCs on the catalyst surface.…”

Section: Mechanism Of Vocs Abatement In Plasma-catalytic Systemmentioning

confidence: 99%

A critical review on plasma-catalytic removal of VOCs: Catalyst development, process parameters and synergetic reaction mechanism

Tian

Wang

et al. 2022

Science of The Total Environment

107

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“…Furthermore, better combination with the catalyst can change the discharge modes and generate new reactive species in the packed bed reactor (PBR) [7]. Moreover, the synergistic effects between the plasma and catalysis, which can improve the energy efficiency and the yield, make the PBR become the favorite discharge structure to generate non thermal plasma and be widely applied in the field of nitrogen fixation [8,9], volatile organic compound (VOCs) and toluene degradation [10][11][12], ozone generation [13,14], and CO 2 conversion [15], etc.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Voltage Pulse Shape on the Discharge Characteristics in the Packed Bed Reactor under Air and Nitrogen

Qin

Yang

et al. 2022

Applied Sciences

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In this paper, the packed bed dielectric barrier discharge (DBD) with needle-plate electrode configuration is presented to study the effects of electrical parameters, such as pulse duration and pulse rising and falling time, on discharge characteristics under air and nitrogen. The waveforms of the voltage and the discharge current, discharge evolution images, and the emission spectral of N2 (C3Пu → B3Пg) and N2+ (B2Σu+ → X2Σg+) are collected to investigate the discharge current, as well as the spatial distribution of the discharge modes and the reactive species in the packed bed reactor specifically. It is found that the pulse duration and pulse rising and falling time can regulate the discharge current. Firstly, increasing the pulse duration and the pulse rising and falling time can both increase the discharge duration. Secondly, the peak value of the discharge current has an obvious increasing trend with the pulse duration. Finally, the discharge start time can be delayed by increasing the pulse rising and falling time. A bright discharge channel is distributed at the top of the reactor, while the discharge is diffused at the bottom of the reactor. The generation of N2+ (B2Σu+) tends to depend on the existence of the streamer channel, and N2 (C3Пu) can be generated in the entire discharge area. In addition, the discharge operated in pure nitrogen can reach higher current values, a stronger discharge intensity, and longer existence time for the reactive species than in the air.

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Non-thermal plasma coupled with catalysis for VOCs abatement: A review

Cited by 89 publications

References 231 publications

Plasma degradation of trichloroethylene: process optimization and reaction mechanism analysis

Plasma degradation of trichloroethylene: process optimization and reaction mechanism analysis

A critical review on plasma-catalytic removal of VOCs: Catalyst development, process parameters and synergetic reaction mechanism

The Effect of Voltage Pulse Shape on the Discharge Characteristics in the Packed Bed Reactor under Air and Nitrogen

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