Plasma Catalytical Reactors for Atmospheric Gas Conversions

Abstract

Plasma catalysis, the combination of non‐thermal plasma and catalyst, is a promising approach for optimizing chemical conversions as the removal of gas trace components. The various technological opportunities for the generation of atmospheric non‐thermal plasma combined with the variety of usable catalysts result in a huge amount of different experimental approaches. The aim of the presented review is to give an overview of plasma catalytic reactor designs currently discussed in literature as well as to point out technological differences and potential for up‐scaling.

CHEMampere: Technologies for sustainable chemical production with renewable electricity and CO2, N2, O2, and H2O

“…[65] Contrary to what is seen with the PPC configuration, the IPC configuration is sensitive to the presence of packing materials in the plasma discharge zone due to the interaction between the packing material and the plasma and vice versa, which might or might not be catalytic in a classical (thermal) sense. [90,95] This interaction can lead to physical [90,97,98,100,101] or surface effects [90,[102][103][104] in the plasma. A few examples are changes in breakdown voltage, electron temperature, electric fields, discharge behaviour, number and displaced charge of streamers, surface charging, reductive capability, hot spot formation, photon fluxes, etc.…”

“…Figure 11 shows the schematic of such configurations for the particular case of packed bed reactors, as they are the most used. However, other configurations, [ 98 ] such as fluidized bed designs [ 99 ] or catalytic‐wall‐reactors, [ 88 ] do exist.…”

Plasma Chemical Oxygen Conversion in an Industry‐Oriented Reactor Design

“…Additionally, the coaxial DBD has already been transferred successfully into industrial scale for the generation of ozone [11]. Hitherto, the transfer of coaxial DBD systems into industrial scale is mainly realized by numbering-up.…”

Plasmachemical Trace‐Oxygen Removal in a Coke Oven Gas with a Coaxial Packed‐Bed‐DBD Reactor

“…The limitations of NTP and catalyst can be overcome by their combination in a plasmacatalytic setup to compensate their disadvantages through synergistic effects , . To investigate the potential of NTP appropriately, a flexible and scaleable plasma reactor design has to be selected out of the range of available NTP concepts , , .…”

“…NTP reactor systems for industrial gas treatment should be driven at least at atmospheric pressure to establish an appropriate reactor size at industrial scale as well as to avoid operating costs for the generation of a vacuum. The dielectric barrier discharge (DBD) as well as the corona discharge are well established technologies for the generation of NTP at atmospheric pressure and have both already been successfully transferred into industrial scale . Corona discharge reactors allow only a partial breakdown, which can transfer into a spark discharge at upscaling and can be limited only with expensive pulsing regulation.…”