Carbon dioxide dissociation to carbon monoxide by non-thermal plasma

Yap, David; Tatibouët, Jean‐Michel; Batiot‐Dupeyrat, Catherine

doi:10.1016/j.jcou.2015.07.002

Cited by 59 publications

(35 citation statements)

References 32 publications

(41 reference statements)

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“…The CO 2 concentration decreases almost linearly with the discharge energy causing an adequate increase in CO concentration. This phenomenon has been observed by many researchers in diverse non-thermal plasma sources, such as DBD [44,45], gliding arc [46,47] and microwave discharge [48,49]. It was found that high energy electrons in these electrical discharges induce vibrational excitation of CO 2 molecules, which is a highly efficient channel for CO 2 decomposition [50].…”

Section: Gaseous Compoundsmentioning

confidence: 91%

Tar Removal by Nanosecond Pulsed Dielectric Barrier Discharge

Dors

Kurzyńska

2020

Applied Sciences

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Featured Application: Biogas and biomass producer gas cleaning.Abstract: Plasma-catalytic reforming of simulated biomass tar composed of naphthalene, toluene, and benzene was carried out in a coaxial plasma reactor supplied with nanosecond high-voltage pulses. The effect of Rh-LaCoO 3 /Al 2 O 3 and Ni/Al 2 O 3 catalysts covering high-voltage electrode on the tar conversion efficiency was evaluated. Compared to the plasma reaction without a catalyst, the combination of plasma with the catalyst significantly enhanced the conversion of all three tar components, achieving complete conversion when an Rh-based catalyst was used. Apart from gaseous and liquid samples, char samples taken at five locations inside the reactor were also analyzed for their chemical composition. Char was not formed when the Rh-based catalyst was used. Different by-products were detected for the plasma reactor without a catalyst, with the Ni-and Rh-based catalysts. A possible reaction pathway in the plasma-catalytic process for naphthalene, as the most complex compound, was proposed through the combined analysis of liquid and solid products. electron density and energy, plasma homogeneity, simple design and operation, capacity to induce reactions at relatively ambient temperature, atmospheric operational pressure, and very low level of coke production [20]. The novelty of this work lies in the combination of four problems that have so far been studied independently or in a smaller combination, i.e.,: Appl. Sci. 2020, 10, 991 A typical voltage pulse is presented in Figure 2. It does not depend on the reactor geometry, condition of the dielectric barrier, presence of catalysts, or gas composition. Its half-measured width is 9 ns, which ensures fast energization of electrons and inhibits their thermalization. This way, energy delivered to the discharge is not wasted in gas heating but consumed by electrons and further the production of radicals via electron-induced dissociation of molecules.

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Section: Gaseous Compoundsmentioning

confidence: 91%

Tar Removal by Nanosecond Pulsed Dielectric Barrier Discharge

Dors

Kurzyńska

2020

Applied Sciences

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“…In packed‐bed DBD reactors (i.e., DBD systems in which the discharge space is filled with dielectric beads solid products of the CO 2 discharge were observed and associated with the electric field enhancement near the contact points of the dielectric beads . In the recent work of Yap et al, it was demonstrated that a highly reactive CO 2 plasma can not only form carbonaceous structures, but also etch the material of the glass beads and re‐deposit composite structures …”

Section: Introductionmentioning

confidence: 99%

Synthesis of Micro- and Nanomaterials in CO₂and CO Dielectric Barrier Discharges

Belov

Vanneste²,

Aghaee

et al. 2016

Plasma Process. Polym.

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Dielectric Barrier Discharges operating in CO and CO 2 form solid products at atmospheric pressure. The main differences between both plasmas and their deposits were analyzed, at similar energy input. GC measurements revealed a mixture of CO 2 , CO, and O 2 in the CO 2 DBD exhaust, while no O 2 was found in the CO plasma. A coating of nanoparticles composed of Fe, O, and C was produced by the CO 2 discharge, whereas, a microscopic dendrite-like carbon structure was formed in the CO plasma. Fe 3 O 4 and Fe crystalline phases were found in the CO 2 sample. The CO deposition was characterized as an amorphous structure, close to polymeric CO (p-CO). Interestingly, p-CO is not formed in the CO 2 plasma, in spite of the significant amounts of CO produced (up to 30% in the reactor exhaust).

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“…Moreover, in the literature, DBD reactors were also packed with dielectric materials to increase the gas conversion. Yap et al . showed a CO 2 conversion of 5.4% and efficiency of 6.3% for pure CO 2 at SEI of 2.5 eV/mol in a DBD reactor packed with glass balls.…”

Section: Resultsmentioning

confidence: 75%

“…Moreover, in the literature, DBD reactors were also packed with dielectric materials to increase the gas conversion. Yap et al 57 showed a CO 2 conversion of 5.4% and efficiency of 6.3% for pure CO 2 at SEI of 2.5 eV/mol in a DBD reactor packed with glass balls. These results revealed that DBD and MHCD reactors could achieve comparable efficiencies and conversions at the same SEI; however, DBD reactors have to be operated with an AC source, which adds complexity in their operation and might increase their capital costs.…”

Section: Comparison Of Mhcd With Other Technologiesmentioning

confidence: 99%

Effects of reactor geometry on dissociating CO₂ and electrode degradation in a MHCD plasma reactor

2018

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This paper reports an experimental study on the effects of reactor geometry for dissociating carbon dioxide using a microhollow cathode discharge (MHCD) reactor, and the associated electrode degradation. A MHCD reactor consists of two hollow metal electrodes that are separated by dielectric material. The geometric reactor parameters studied were the dielectric material thickness and the diameter of the reactor hole. Dielectric thicknesses of 150, 300 and 450 μm and discharge hole diameters of 200, 400 and 515 μm were studied parametrically. The results of each parameter combination were discussed in terms of specific energy input (SEI), CO2 conversion, electrical‐to‐chemical energy conversion efficiency, and degradation rate of the electrodes. Overall, the results showed that, at constant SEI, increasing the dielectric thickness increased CO2 conversion and energy efficiency but decreased the degradation rate. Moreover, at a constant SEI, varying the hole diameter did not affect CO2 conversion or efficiency but the electrode degradation rate decreased with increasing hole diameter. The maximum efficiency observed was about 18.5% for the dielectric thickness of 450 μm, hole diameter of 400 μm, and a SEI of 0.1 eV/mol. With this reactor geometry, the maximum CO2 conversion was 17.3% at a SEI of 3.7 eV/mol. Moreover, the results showed that the rate of electrode degradation increased linearly with time at a rate ranging from 130 to 207 μm2/s, with a reactor lifetime of 13 hours at a SEI of 3.7 eV/mol. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Carbon dioxide dissociation to carbon monoxide by non-thermal plasma

Cited by 59 publications

References 32 publications

Tar Removal by Nanosecond Pulsed Dielectric Barrier Discharge

Tar Removal by Nanosecond Pulsed Dielectric Barrier Discharge

Synthesis of Micro- and Nanomaterials in CO₂and CO Dielectric Barrier Discharges

Effects of reactor geometry on dissociating CO₂ and electrode degradation in a MHCD plasma reactor

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Carbon dioxide dissociation to carbon monoxide by non-thermal plasma

Cited by 59 publications

References 32 publications

Tar Removal by Nanosecond Pulsed Dielectric Barrier Discharge

Tar Removal by Nanosecond Pulsed Dielectric Barrier Discharge

Synthesis of Micro- and Nanomaterials in CO2and CO Dielectric Barrier Discharges

Effects of reactor geometry on dissociating CO2 and electrode degradation in a MHCD plasma reactor

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Product

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Synthesis of Micro- and Nanomaterials in CO₂and CO Dielectric Barrier Discharges

Effects of reactor geometry on dissociating CO₂ and electrode degradation in a MHCD plasma reactor