Toroidal CO2 Plasma Sources with Low- and High-Frequency Power Coupling Configurations for Improved Energy Transfer Efficiencies DOI Creative Commons
Edwin Devid, W.A. Bongers,

P.W.C. Groen

et al.

Plasma, Journal Year: 2024, Volume and Issue: 7(3), P. 566 - 584

Published: July 24, 2024

Electrodeless Low-Frequency (LF)/Radio-Frequency (RF) plasma sources often suffer from low power coupling efficiencies due to the lack of overlapping field with dynamic load. However, supplies for these typically have very high (>90%) and are more cost-effective compared microwave sources. If efficiency can be increased, offer a competitive technology sustainable electrification chemical industry. This work experimentally investigates five methods, applied toroidal CO2 plasmas in quartz vessel. The research was based on similar ferrite as used energy-efficient lamps. higher resistance decreased 90% (for mercury-vapor plasma) 66% at 1 mbar. High LF/RF powered discharges achieved two manners: either inductance transformer cores or electromagnetic wave frequency increased. Furthermore, additional parallel primary coils increase impedance transformation. An experiment six single winding parallel, about 10 MHz kW, showed that this has detrimental effect magnetic permeability losses result decrease 33% 1.5 At 66 kHz nanocrystalline soft material core, 89% mbar 3.1 kW. configuration exhibits decreasing pressures since increases, which again limits inductance. investigation alternative coreless coil configurations resulted up 50% 102 enclosed by toroidally spiraling coils.

Language: Английский

CO Generation from CO2 Using an Atmospheric Microwave Plasma Process DOI Creative Commons

Marc Bresser,

K. Wiegers, Andreas Schulz

et al.

Chemie Ingenieur Technik, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract With rising CO₂ levels and climate change, finding alternatives to fossil fuels is essential. One attractive option converting into CO O₂ via an atmospheric microwave plasma process. This study evaluates conversion energy efficiency by increasing power flow. Power flow were varied, with measured using Fourier transform‐infrared spectroscopy, mass spectrometry, gas analysis. A maximum of 21.1 % was achieved at a specific input 1.1 eV molecule −1 , highlighting the potential this approach for efficient utilization.

Language: Английский

Citations

2
Plasma-enhanced upcycling of mixed plastic waste over La0.6Ca0.4FeO3− nano spheres for co-producing hydrogen and high-value carbon DOI Creative Commons
Guoxing Chen, Xiao Yu, Aasir Rashid

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104039 - 104039

Published: Jan. 1, 2025

Language: Английский

Citations

1
Non-thermal plasma-catalytic processes for CO2 conversion toward circular economy: fundamentals, current status, and future challenges DOI Creative Commons
Ahmad Mukhtar,

Sidra Saqib,

Dinithi Mohotti

et al.

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 24, 2024

Abstract Practical and energy-efficient carbon dioxide (CO 2 ) conversion to value-added fuel-graded products transitioning from fossil fuels are promising ways cope with climate change enable the circular economy. The economy aims capture, utilize, minimize CO emissions as much possible. To thermodynamic stability highly endothermic nature of via conventional thermochemical process, potential application non-thermal plasma (NTP) catalyst, i.e., hybrid catalysis process achieve synergistic effects, in most cases, seems promise alternatives under non-equilibrium conditions. This review focuses on NTP fundamentals comparison technologies. A critical has been conducted reduction water (H O), methane (CH 4 syngas + H ), dissociation monoxide (CO), hydrogenation, organic acids, one-step –CH reforming liquid chemicals. Finally, future challenges discussed comprehensively, indicating that immense investigative areas.

Language: Английский

Citations

5
Toward sustainable hydrogen and carbon economies through plasma-based recycling DOI
Guoxing Chen, Anke Weidenkaff

Frontiers of Chemical Science and Engineering, Journal Year: 2025, Volume and Issue: 19(10)

Published: March 27, 2025

Language: Английский

Citations

0
Novel Microwave Plasma Source for Plasma Chemistry in Gases DOI Creative Commons
Andreas Schulz, K. Wiegers,

Mariagrazia Troia

et al.

Chemie Ingenieur Technik, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Abstract In order to reduce the use and combustion of fossil raw materials, increasing reliance must be placed on renewable energies. Many strategies are currently being researched enable electrical energy from resources for chemical synthesis [1, 2]. This contribution shows possibility obtaining basic chemicals by conversion using microwave plasma technology. A challenge energies, in addition storage problem, is dependence weather conditions. The technology approach provides excellent flexibility controlling process thus utilizing fluctuating availability cost‐effective enables efficient on‐demand operation.

Language: Английский

Citations

0
Toroidal CO2 Plasma Sources with Low- and High-Frequency Power Coupling Configurations for Improved Energy Transfer Efficiencies DOI Creative Commons
Edwin Devid, W.A. Bongers,

P.W.C. Groen

et al.

Plasma, Journal Year: 2024, Volume and Issue: 7(3), P. 566 - 584

Published: July 24, 2024

Electrodeless Low-Frequency (LF)/Radio-Frequency (RF) plasma sources often suffer from low power coupling efficiencies due to the lack of overlapping field with dynamic load. However, supplies for these typically have very high (>90%) and are more cost-effective compared microwave sources. If efficiency can be increased, offer a competitive technology sustainable electrification chemical industry. This work experimentally investigates five methods, applied toroidal CO2 plasmas in quartz vessel. The research was based on similar ferrite as used energy-efficient lamps. higher resistance decreased 90% (for mercury-vapor plasma) 66% at 1 mbar. High LF/RF powered discharges achieved two manners: either inductance transformer cores or electromagnetic wave frequency increased. Furthermore, additional parallel primary coils increase impedance transformation. An experiment six single winding parallel, about 10 MHz kW, showed that this has detrimental effect magnetic permeability losses result decrease 33% 1.5 At 66 kHz nanocrystalline soft material core, 89% mbar 3.1 kW. configuration exhibits decreasing pressures since increases, which again limits inductance. investigation alternative coreless coil configurations resulted up 50% 102 enclosed by toroidally spiraling coils.

Language: Английский

Citations

0