Toluene decomposition performance and NOx by-product formation during a DBD-catalyst process

Guo, Yufang; Liao, Xiaobin; Fu, Mingli; Huang, Haibao; Ye, Daiqi

doi:10.1016/j.jes.2014.06.048

Cited by 34 publications

(13 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At low frequency and energy density values, the concentration of NO 2 increases with the energy density. The behavior of the NO 2 concentration is almost linear with respect to the energy density at low energy density values, which is consistent with the result obtained by Guo et al [54] in a DBD-based reactor despite a high energy density used in their work. The linear behavior of the NO 2 concentration with respect to the energy density at low energy densities (less than 15 J/L) indicates a constant yield of NO 2 , It can explain the increase of the energy yield of the ozone production in this range of the energy density.…”

Section: Nitrogen Byproductssupporting

confidence: 91%

“…These compounds are generated by the following reactions of nitrogen molecules or atoms with oxygen atoms or molecules [51][52][53][54]:…”

Section: Nitrogen Byproductsmentioning

confidence: 99%

“…The absence of NO in the spectra can be due to its easy oxidation to NO 2 (R11 and R18) [49,54,57] and its oxidation via NO 2 and NO 3 to another oxidation state N 2 O 5 (R25) [52]. lead to the N 2 O formation via reactions R10, R17, and R18.…”

Section: Nitrogen Byproductsmentioning

confidence: 99%

See 2 more Smart Citations

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

Abdelaziz

Ishijima

Seto

et al. 2016

Plasma Sources Sci. Technol.

View full text Add to dashboard Cite

The aim of this study is to investigate the effect of the intermediate frequency (1-10 kHz) of the sinusoidal driving voltage on the characteristics of a developed surface dielectric barrier discharge (SDBD)-based reactor having spikes on its discharge electrode. Moreover, its influence on the production of ozone and nitrogen oxide byproducts is evaluated. The results show that SDBD is operated in the filamentary mode at all the frequencies. Nevertheless, the pulses of the discharge current at high frequencies are much denser and have higher amplitudes than those at low frequencies. The analysis of the power consumed in the reactor shows that a small portion of the input power is dissipated in the dielectric material of SDBD source, whereas the major part of the power is consumed in the plasma discharge. The results of the ozone production show that higher frequencies have a slightly adverse effect on the ozone production at relatively high energy density values, where the ozone concentration is slightly decreased when the frequency is increased at the same energy density. The temperature of the discharge channels and gas is not a crucial factor for the decomposition of ozone in this reactor, while the results of the measurements of nitrogen oxides characteristics 2 indicate that the formation of NO and NO 2 has a significant adverse effect on the production efficiency of ozone due to their oxidation to another nitrogen oxides and their catalytic effect.

show abstract

Section: Nitrogen Byproductssupporting

confidence: 91%

“…These compounds are generated by the following reactions of nitrogen molecules or atoms with oxygen atoms or molecules [51][52][53][54]:…”

Section: Nitrogen Byproductsmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

Abdelaziz

Ishijima

Seto

et al. 2016

Plasma Sources Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Since the abatement of VOCs is usually performed in (synthetic) air, undesired nitric oxides may be formed as O 2 and N 2 can react with each other after plasma activation. Guo et al [101] found that the NO x formation during toluene oxidation can be limited by the choice of the catalyst. While all investigated catalysts decreased the NO x amount, CuO showed the most significant effect.…”

Section: Plasma-assisted Oxidation Of Volatile Organic Compoundsmentioning

confidence: 99%

Fundamental Properties and Applications of Dielectric Barrier Discharges in Plasma‐Catalytic Processes at Atmospheric Pressure

Ollegott

Wirth

Oberste‐Beulmann

et al. 2020

Chemie Ingenieur Technik

View full text Add to dashboard Cite

The combination of a nonthermal plasma and a heterogeneous catalyst provides unique opportunities for chemical transformations. High densities of reactive species, such as ions, radicals or vibrationally excited molecules, are generated by electron collisions and initiate a multitude of chemical reactions in the gas phase. By shifting the reaction site from the gas phase to the surface of the catalyst, the selectivity of these reactions can be significantly enhanced. Dielectric barrier discharges (DBDs) are a promising plasma source for these kinds of applications due to their non‐equilibrium conditions and their simple construction. This review provides a brief introduction to the breakdown mechanism and the various geometries of DBDs and presents several plasma‐catalytic DBD applications.

show abstract

“…Comparing to traditional techniques such as high-temperature-based combustion and catalytic oxidation, non-thermal plasma (NTP) technology is capable of operating at room temperature and ambient pressure. Meanwhile, easy operation is another main advantages of NTP technique [4]. However, the energy efficiency and CO 2 selectivity still need to be improved for further industrial application.…”

Section: Introductionmentioning

confidence: 99%

The Design of MnOx Based Catalyst in Post-Plasma Catalysis Configuration for Toluene Abatement

Giraudon

Geyter

et al. 2018

Catalysts

View full text Add to dashboard Cite

This review provides an overview of our present state of knowledge using manganese oxide (MnOx)-based catalysts for toluene abatement in PPC (Post plasma-catalysis) configuration. The context of this study is concisely sum-up. After briefly screening the main depollution methods, the principles of PPC are exposed based on the coupling of two mature technologies such as NTP (Non thermal plasma) and catalysis. In that respect, the presentation of the abundant manganese oxides will be firstly given. Then in a second step the main features of MnOx allowing better performances in the reactions expected to occur in the abatement of toluene in PPC process are reviewed including ozone decomposition, toluene ozonation, CO oxidation and toluene total oxidation. Finally, in a last part the current status of the applications of PPC using MnOx on toluene abatement are discussed. In a first step, the selected variables of the hybrid process related to the experimental conditions of toluene abatement in air are identified. The selected variables are those expected to play a role in the performances of PPC system towards toluene abatement. Then the descriptors linked to the performances of the hybrid process in terms of efficiency are given and the effects of the variables on the experimental outcomes (descriptors) are discussed. The review would serve as a reference guide for the optimization of the PPC process using MnOx-based oxides for toluene abatement.

show abstract

Toluene decomposition performance and NOx by-product formation during a DBD-catalyst process

Cited by 34 publications

References 37 publications

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

Characterization of surface dielectric barrier discharge influenced by intermediate frequency for ozone production

Fundamental Properties and Applications of Dielectric Barrier Discharges in Plasma‐Catalytic Processes at Atmospheric Pressure

The Design of MnOx Based Catalyst in Post-Plasma Catalysis Configuration for Toluene Abatement

Contact Info

Product

Resources

About