The conversion of carbon dioxide using a microwave plasma reactor

2001 ◽  
Author(s):  
Sharon Kit Shan Law
Keyword(s):  
Carbon Dioxide ◽  
Microwave Plasma ◽  
Plasma Reactor

scholarly journals Design and characterization of an electromagnetic-resonant cavity microwave plasma reactor for atmospheric pressure carbon dioxide decomposition

2018 ◽  
Vol 16 (2) ◽  
pp. 1800153 ◽  
Author(s):  
Sina Mohsenian ◽  
Shyam Sheth ◽  
Saroj Bhatta ◽  
Dassou Nagassou ◽  
Daniel Sullivan ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Atmospheric Pressure ◽  
Microwave Plasma ◽  
Plasma Reactor ◽  
Resonant Cavity

scholarly journals Design and characterization of a solar-enhanced microwave plasma reactor for atmospheric pressure carbon dioxide decomposition

2019 ◽  
Vol 28 (6) ◽  
pp. 065001 ◽  
Author(s):  
Sina Mohsenian ◽  
Dassou Nagassou ◽  
Saroj Bhatta ◽  
Rasool Elahi ◽  
Juan Pablo Trelles
Keyword(s):  
Carbon Dioxide ◽  
Atmospheric Pressure ◽  
Microwave Plasma ◽  
Plasma Reactor

scholarly journals The Assessment of Carbon Dioxide Dissociation Using a Single-Mode Microwave Plasma Generator

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1558 ◽  
Author(s):  
George Mogildea ◽  
Marian Mogildea ◽  
Cristina Popa ◽  
Gabriel Chiritoi
Keyword(s):  
Carbon Dioxide ◽  
Microwave Plasma ◽  
Focal Point ◽  
Single Mode ◽  
Plasma Generator ◽  
High Energy ◽  
High Electron ◽  
Space Applications ◽  
Plasma Characterization ◽  
Co2 Atmosphere

This paper focuses on the dissociation of carbon dioxide (CO2) following the absorption processes of microwave radiation by noncontact metal wire (tungsten). Using a microwave plasma generator (MPG) with a single-mode cavity, we conducted an interaction of microwaves with a noncontact electrode in a CO2 atmosphere. High energy levels of electromagnetic radiation are generated in the focal point of the MPG’s cylindrical cavity. The metal wires are vaporized and ionized from this area, subsequently affecting the dissociation of CO2. The CO2 dissociation is highlighted through plasma characterization and carbon monoxide (CO) quantity determination. For plasma characterization, we used an optical emission spectroscopy method (OES), and for CO quantity determination, we used a gas analyzer instrument. Using an MPG in the CO2 atmosphere, we obtained a high electron temperature of the plasma and a strong dissociation of CO2. After 20 s of the interaction between microwaves and noncontact electrodes, the quantity of CO increased from 3 ppm to 1377 ppm (0.13% CO). This method can be used in space applications to dissociate CO2 and refresh the atmosphere of closed spaces.

Energy coupling efficiency of a hydrogen microwave plasma reactor

2001 ◽  
Vol 89 (3) ◽  
pp. 1544 ◽  
Author(s):  
M. H. Gordon ◽  
X. Duten ◽  
K. Hassouni ◽  
A. Gicquel
Keyword(s):  
Microwave Plasma ◽  
Plasma Reactor ◽  
Coupling Efficiency ◽  
Energy Coupling

scholarly journals SIMULATION OF GAS DYNAMICS IN PLASMA REACTOR FOR CARBON DIOXIDE CONVERSION

2021 ◽  
pp. 131-135
Author(s):  
P.P. Platonov ◽  
S.V. Dudin ◽  
V.A. Lisovskiy
Keyword(s):  
Carbon Dioxide ◽  
Energy Efficiency ◽  
Residence Time ◽  
Plasma Reactor ◽  
Gas Injection ◽  
Navier Stokes ◽  
Carbon Dioxide Conversion ◽  
Navier Stokes Equation ◽  
Hydrodynamic Approximation ◽  
Gas Conversion

Numerical simulation of a bulk-type plasma reactor for carbon dioxide conversion with distributed gas injection and pumping has been performed in hydrodynamic approximation by solution of Navier-Stokes equation using the mathematical package COMSOL. It is shown that the geometry of gas injection and pumping, which determines the trajectories of the particles and their residence time in reactor, can significantly affect the energy efficiency of the conversion. Different particles on their way from inlet to pumping hole move along different trajectories and spend different times inside the reactor. If the residence time of the gas in the reactor is less than optimal, the gas conversion will be incomplete. If this time is more than optimal, then an excessive amount of energy will be applied to the already converted gas. It is shown that the reactor height affects significantly the energy efficiency of plasma conversion of carbon dioxide.

Scale-up or numbering-up of a micro plasma reactor for the carbon dioxide decomposition

2007 ◽  
Vol 515 (9) ◽  
pp. 4296-4300 ◽  
Author(s):  
Aguru Yamamoto ◽  
Shinsuke Mori ◽  
Masaaki Suzuki
Keyword(s):  
Carbon Dioxide ◽  
Plasma Reactor ◽  
Scale Up

Nanoparticles generated by combining hot wall and microwave plasma chemical vapor synthesis

MRS Advances ◽  
2018 ◽  
Vol 3 (4) ◽  
pp. 213-218
Author(s):  
Alexander Levish ◽  
Markus Winterer
Keyword(s):  
Iron Oxide ◽  
Microwave Plasma ◽  
Plasma Reactor ◽  
Chemical Vapor ◽  
Process Window ◽  
Chemical Vapor Synthesis ◽  
Second Stage ◽  
Structure Surface ◽  
Oxide Phases ◽  
Precursor Decomposition

ABSTRACTControlling the oxidation state of iron and the crystal structure of iron containing compounds is the key to improved materials such as iron oxide nanoparticles for cancer treatment or heterogeneous catalysis. Iron oxides contain iron in different oxidation states and form different phases for one valence state (α-Fe3+2O2-3, β- Fe3+2O-32, etc.). Chemical vapor synthesis (CVS) allows the reproducible production of pure nanocrystals with narrow size distribution where particle formation and growth take place in the gas phase. Through the controlled variation of synthesis parameters CVS enables the synthesis of diverse iron oxide phases. In this study the energy for the CVS process is supplied by a hot wall furnace and a microwave plasma. The advantage of an plasma reactor as the first CVS stage is the fast and complete precursor decomposition at low temperatures. This results in a larger process window for the hot wall reactor in the second stage. The nanoparticles are examined regarding their structure, surface and valence by XRD and TEM.

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