Nanosecond-pulsed discharge plasma splitting of carbon dioxide

Bak, Moon Soo; Im, Seong-kyun; Cappelli, Mark A.

doi:10.1109/tps.2015.2408344

Cited by 51 publications

(39 citation statements)

References 17 publications

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“…The energy efficiency obtained with NSP by Bak et al . is also lower than in our case, at slightly lower conversion values.…”

Section: Resultscontrasting

confidence: 78%

“…Due to its increasing interest, many researchers are investigating the splitting of CO 2 into CO and O 2 by plasma, both in pure CO 2 as well as in a mixture with other gases like CH 4 , H 2 , or H 2 O . When CO 2 is mixed with such a hydrogen source, value‐added chemicals can be produced, such as syngas, methanol, formaldehyde and formic acid.…”

Section: Introductionmentioning

confidence: 99%

“…When CO 2 is mixed with such a hydrogen source, value‐added chemicals can be produced, such as syngas, methanol, formaldehyde and formic acid. Most research on plasma‐based CO 2 conversion is done with one of the following types of plasmas: dielectric barrier discharges (DBD), microwave (MW) plasmas, nanosecond‐pulsed plasmas (NSP), spark discharges, and gliding arc discharges . A lot of research goes into improving the energy efficiency of the process.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Gliding Arc Plasmatron: Providing an Alternative Method for Carbon Dioxide Conversion

et al. 2017

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Low-temperature plasmas are gaining a lot of interest for environmental and energy applications. A large research field in these applications is the conversion of CO into chemicals and fuels. Since CO is a very stable molecule, a key performance indicator for the research on plasma-based CO conversion is the energy efficiency. Until now, the energy efficiency in atmospheric plasma reactors is quite low, and therefore we employ here a novel type of plasma reactor, the gliding arc plasmatron (GAP). This paper provides a detailed experimental and computational study of the CO conversion, as well as the energy cost and efficiency in a GAP. A comparison with thermal conversion, other plasma types and other novel CO conversion technologies is made to find out whether this novel plasma reactor can provide a significant contribution to the much-needed efficient conversion of CO . From these comparisons it becomes evident that our results are less than a factor of two away from being cost competitive and already outperform several other new technologies. Furthermore, we indicate how the performance of the GAP can still be improved by further exploiting its non-equilibrium character. Hence, it is clear that the GAP is very promising for CO conversion.

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“…The energy efficiency obtained with NSP by Bak et al . is also lower than in our case, at slightly lower conversion values.…”

Section: Resultscontrasting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Gliding Arc Plasmatron: Providing an Alternative Method for Carbon Dioxide Conversion

et al. 2017

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“…More specifically, the plasma reactor has been identified as a commercially attractive alternative to chemical plants in the production of CO 2 neutral fuels due to their simplicity, compactness and low price 22 . A wide range of plasma technologies have been proposed for the dissociation of CO 2 23 , including Corona discharges 24,25,26 , nanosecond pulsed discharges 27 , micro hollow cathode discharges 28 , microplasmas 29 , dielectric barrier discharges 30,31,32,33 , gliding arcs 34,35 , and microwave plasmas 37,38 . Out of these vastly varying technologies, the microwave plasma and gliding arc have been operated with the highest power, in the kW range, and have shown the best efficiencies, 40% for a gliding arc and 60-80% for a microwave discharge.…”

Section: Discussionmentioning

confidence: 99%

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Bekerom

Harder

Minea

et al. 2017

JoVE

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A flowing microwave plasma based methodology for converting electric energy into internal and/or translational modes of stable molecules with the purpose of efficiently driving non-equilibrium chemistry is discussed. The advantage of a flowing plasma reactor is that continuous chemical processes can be driven with the flexibility of startup times in the seconds timescale. The plasma approach is generically suitable for conversion/ activation of stable molecules such as CO 2 , N 2 and CH 4 . Here the reduction of CO 2 to CO is used as a model system: the complementary diagnostics illustrate how a baseline thermodynamic equilibrium conversion can be exceeded by the intrinsic non-equilibrium from high vibrational excitation. Laser (Rayleigh) scattering is used to measure the reactor temperature and Fourier Transform Infrared Spectroscopy (FTIR) to characterize in situ internal (vibrational) excitation as well as the effluent composition to monitor conversion and selectivity.

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“…According to the 2017 Plasma Roadmap [1], 'process selectivity, conversion and/or energy efficiency are still not sufficient to justify the large-scale use of non-thermal plasmas' for many environmental applications. Examples of such applications include the conversion of CO 2 [2][3][4][5], the production of syngas or hydrogen [6][7][8][9], liquid fuels [10][11][12], ozone [13][14][15] or the removal of volatile organic compounds or other pollutants from air streams [16][17][18][19][20][21]. These applications usually involve the use of a plasma reactor where both desired and undesired reactions may take place during or following a non-equilibrium electric discharge, eventually with the help of a catalyst.…”

Section: Introductionmentioning

confidence: 99%

Applying chemical engineering concepts to non-thermal plasma reactors

Nobrega

Gaunand

Rohani

et al. 2018

Plasma Sci. Technol.

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Process scale-up remains a considerable challenge for environmental applications of non-thermal plasmas. Undersanding the impact of reactor hydrodynamics in the performance of the process is a key step to overcome this challenge. In this work, we apply chemical engineering concepts to analyse the impact that different non-thermal plasma reactor configurations and regimes, such as laminar or plug flow, may have on the reactor performance. We do this in the particular context of the removal of pollutants by non-thermal plasmas, for which a simplified model is available. We generalise this model to different reactor configurations and, under certain hypotheses, we show that a reactor in the laminar regime may have a behaviour significantly different from one in the plug flow regime, often assumed in the non-thermal plasma literature. On the other hand, we show that a packed-bed reactor behaves very similarly to one in the plug flow regime. Beyond those results, the reader will find in this work a quick introduction to chemical reaction engineering concepts.

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Nanosecond-pulsed discharge plasma splitting of carbon dioxide

Cited by 51 publications

References 17 publications

Gliding Arc Plasmatron: Providing an Alternative Method for Carbon Dioxide Conversion

Gliding Arc Plasmatron: Providing an Alternative Method for Carbon Dioxide Conversion

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Applying chemical engineering concepts to non-thermal plasma reactors

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