Degradation of CO<sub>2</sub> through dielectric barrier discharge microplasma

Duan, Xiaofei; Li, Yanping; Ge, Wenjie; Wang, Baowei

doi:10.1002/ghg.1425

Cited by 40 publications

(30 citation statements)

References 38 publications

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“…A similar phenomenon was also reported in previous studies, where the highest energy efficiency for the reforming of methane or pure CO 2 decomposition was obtained at lower plasma power and higher reactant flow using either DBD or gliding arc. [27,31,40,[45][46][47][48] The effect of the discharge power on the energy efficiency shows a similar evolution behavior when changing the CO 2 flow rate, while the gradient of the energy efficiency with respect to the discharge power is almost constant regardless of the CO 2 flow rate. This suggests the interaction between these two process parameters is very weak in terms of the energy efficiency of the plasma process.…”

Section: Effect Of Process Parameters On Energy Efficiencymentioning

confidence: 59%

Optimization of CO₂ Conversion in a Cylindrical Dielectric Barrier Discharge Reactor Using Design of Experiments

Mei

Liu

et al. 2015

Plasma Process. Polym.

111

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In this work, a coaxial dielectric barrier discharge reactor has been developed for the decomposition of CO 2 at atmospheric pressure. The response surface methodology based on a three-factor, three-level Box-Behnken design has been developed to investigate the effects of key independent process parameters (discharge power, feed flow rate, and discharge length) and their interactions on the reaction performance in terms of CO 2 conversion and the energy efficiency of the plasma process. Two quadratic polynomial regression models have been established to understand the relationships between the plasma process parameters and the performance of the CO 2 conversion process. The results indicate that the discharge power is the most important factor affecting CO 2 conversion, while the feed flow rate has the most significant impact on the energy efficiency of the process. The interactions between different plasma process parameters have a very weak effect on the conversion of CO 2 . However, the interactions of the discharge length with either discharge power or gas flow rate have a significant effect on the energy efficiency of the plasma process. The optimal process performance-CO 2 conversion (14.3%) and energy efficiency (8.0%) for the plasma CO 2 conversion process is achieved at a discharge power of 15.8 W, a feed flow rate of 41.9 ml Á min À1 and a discharge length of 150 mm as the highest global desirability of 0.816 is obtained at these conditions. The reproducibility of the experimental results successfully demonstrates the feasibility and reliability of the design of experiments approach for the optimization of the plasma CO 2 conversion process.

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Section: Effect Of Process Parameters On Energy Efficiencymentioning

confidence: 59%

Optimization of CO₂ Conversion in a Cylindrical Dielectric Barrier Discharge Reactor Using Design of Experiments

Mei

Liu

et al. 2015

Plasma Process. Polym.

111

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“…6 CO 2 has stable chemical properties. Recently, several non-thermal plasma technologies, such as corona discharge, 16,17 gliding arc discharge, 18,19 glow discharge, 20,21 radio frequency discharge, 22,23 spark discharge, 24 microwave discharge, 25 and DBD [26][27][28][29][30][31][32][33] have been developed and used to activate CO 2 . 8 At present, the activation and decomposition or conversion of CO 2 have been extensively studied by many research groups via conventional thermal-chemical methods, 9 electrochemical reduction, 10 photochemical methods, 11,12 and biological methods.…”

Section: Introductionmentioning

confidence: 99%

“…13,14 However, traditional methods at high temperatures require a huge amount of energy because of the chemical stability of CO 2 molecule, 15 so activating and decomposing/converting CO 2 remain fairly difficult. 27 According to the literature, electrode materials have direct effects on plasma discharge efficiency. Currently, the direct decomposition of CO 2 has become a research hotspot.…”

Section: Introductionmentioning

confidence: 99%

“…13,14 However, traditional methods at high temperatures require a huge amount of energy because of the chemical stability of CO 2 molecule, 15 so activating and decomposing/converting CO 2 remain fairly difficult. Recently, several non-thermal plasma technologies, such as corona discharge, 16,17 gliding arc discharge, 18,19 glow discharge, 20,21 radio frequency discharge, 22,23 spark discharge, 24 microwave discharge, 25 and DBD [26][27][28][29][30][31][32][33] have been developed and used to activate CO 2 . Currently, the direct decomposition of CO 2 has become a research hotspot.…”

Section: Introductionmentioning

confidence: 99%

“…18 But to our knowledge, the highest decomposition rate of CO 2 ever reported was 35% within 225kJ/L using pure DBD plasma. 27 According to the literature, electrode materials have direct effects on plasma discharge efficiency. 35,36 Further fundamental work has proved the synergistic effect between plasma and catalysts helps improve CO 2 decomposition.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Direct decomposition of CO₂ using self‐cooling dielectric barrier discharge plasma

et al. 2017

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As a greenhouse gas, carbon dioxide (CO2) is one of the major causes of global warming. The effective control of CO2 emission has become a major global concern. To reduce CO2 emission in the environment and to maximize the use of CO2, a self‐cooling wire‐cylinder dielectric barrier discharge (DBD) plasma reactor was used to decompose CO2 at ambient conditions, and the results were compared with a common wire‐cylinder DBD reactor. Results indicated that in the said plasma reactor, circulating water could obviously improve discharge efficiency through taking away heat that was generated during plasma discharge process, and a more stable and homogeneous discharge was easier to obtain. The CO2 decomposition rate was 26.1% without using any catalysts and discharge mediums or modifying electrodes, and this value was significantly higher than that in the common wire‐cylinder DBD reactor (10.1% CO2 decomposition rate). Moreover, the CO2 decomposition rate could reach up to 35.8% when N2 was added (volume ratio VN2:VCnormalO2=9:1). © 2017 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Atmospheric Pressure Non‐Thermal Plasma Activation of CO₂ in a Packed‐Bed Dielectric Barrier Discharge Reactor

Mei

2017

ChemPhysChem

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Direct conversion of CO2 into CO and O2 is performed in a packed‐bed dielectric barrier discharge (DBD) non‐thermal plasma reactor at low temperatures and atmospheric pressure. The maximum CO2 conversion of 22.6 % is achieved when BaTiO3 pellets are fully packed into the discharge gap. The introduction of γ‐Al2O3 or 10 wt % Ni/γ‐Al2O3 catalyst into the BaTiO3 packed DBD reactor increases both CO2 conversion and energy efficiency of the plasma process. Packing γ‐Al2O3 or 10 wt % Ni/γ‐Al2O3 upstream of the BaTiO3 bed shows higher CO2 conversion and energy efficiency compared with that of mid‐ or downstream packing modes because the reverse reaction of CO2 conversion—the recombination of CO and O to form CO2—is more likely to occur in mid‐ and downstream modes. Compared with the γ‐Al2O3 support, the coupling of the DBD with the Ni catalyst shows a higher CO2 conversion, which can be attributed to the presence of Ni active species on the catalyst surface. The argon plasma treatment of the reacted Ni catalyst provides extra evidence to confirm the role of Ni active species in the conversion of CO2.

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Degradation of CO₂ through dielectric barrier discharge microplasma

Cited by 40 publications

References 38 publications

Optimization of CO₂ Conversion in a Cylindrical Dielectric Barrier Discharge Reactor Using Design of Experiments

Optimization of CO₂ Conversion in a Cylindrical Dielectric Barrier Discharge Reactor Using Design of Experiments

Direct decomposition of CO₂ using self‐cooling dielectric barrier discharge plasma

Atmospheric Pressure Non‐Thermal Plasma Activation of CO₂ in a Packed‐Bed Dielectric Barrier Discharge Reactor

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Degradation of CO2 through dielectric barrier discharge microplasma

Cited by 40 publications

References 38 publications

Optimization of CO2 Conversion in a Cylindrical Dielectric Barrier Discharge Reactor Using Design of Experiments

Optimization of CO2 Conversion in a Cylindrical Dielectric Barrier Discharge Reactor Using Design of Experiments

Direct decomposition of CO2 using self‐cooling dielectric barrier discharge plasma

Atmospheric Pressure Non‐Thermal Plasma Activation of CO2 in a Packed‐Bed Dielectric Barrier Discharge Reactor

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Product

Resources

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Degradation of CO₂ through dielectric barrier discharge microplasma

Optimization of CO₂ Conversion in a Cylindrical Dielectric Barrier Discharge Reactor Using Design of Experiments

Optimization of CO₂ Conversion in a Cylindrical Dielectric Barrier Discharge Reactor Using Design of Experiments

Direct decomposition of CO₂ using self‐cooling dielectric barrier discharge plasma

Atmospheric Pressure Non‐Thermal Plasma Activation of CO₂ in a Packed‐Bed Dielectric Barrier Discharge Reactor