The Gliding Arc Tornado (GAT) is a device operating a near atmospheric pressure discharge with optimized hydrodynamical properties compared to those of gliding arcs reactors. The name points to the reverse vortex flow configuration, a tornado, of the gas-phase in the discharge region. In practice, this is implemented through a tangential gas injection from the lateral surface of a cylinder hosting the process chamber. This ensures an optimal mixing and much longer residence times respect to an axial laminar flow [1]. It provides also, normally a better insulation of the device walls from the discharge. It was also observed that a higher level of non-equilibrium characterizes the plasma gas-phase than in arcs. We have developed and used a kind of these devices for the treatment of lignin by plasmas [2]. Particles in powder, such as lignin, can be easily injected in the gas flow, separated and exposed to the plasma gas-phase while they are transported by the hydrodynamical flow. So optimal interaction with the discharge gas-phase could be achieved. Here we will present some results concerning the characterization of the discharge and of the plasma gas-phase. We discuss briefly also the prospect of plasma processing and its optimization, we have studied during a dedicated application, the POLISTE project [3].

Barni, R., Zoia, L., Orlandi, M., Bellinetto, E., Boumezgane, O., Turri, S., et al. (2022). Plasma processing of nano- and micro-particles in Gliding Arc Tornado device. Intervento presentato a: 48th EPS Conference on Plasma Physics, Maastrict. Olanda.

Plasma processing of nano- and micro-particles in Gliding Arc Tornado device

L. Zoia
Secondo
;
M. Orlandi;C. Riccardi
Ultimo
2022

Abstract

The Gliding Arc Tornado (GAT) is a device operating a near atmospheric pressure discharge with optimized hydrodynamical properties compared to those of gliding arcs reactors. The name points to the reverse vortex flow configuration, a tornado, of the gas-phase in the discharge region. In practice, this is implemented through a tangential gas injection from the lateral surface of a cylinder hosting the process chamber. This ensures an optimal mixing and much longer residence times respect to an axial laminar flow [1]. It provides also, normally a better insulation of the device walls from the discharge. It was also observed that a higher level of non-equilibrium characterizes the plasma gas-phase than in arcs. We have developed and used a kind of these devices for the treatment of lignin by plasmas [2]. Particles in powder, such as lignin, can be easily injected in the gas flow, separated and exposed to the plasma gas-phase while they are transported by the hydrodynamical flow. So optimal interaction with the discharge gas-phase could be achieved. Here we will present some results concerning the characterization of the discharge and of the plasma gas-phase. We discuss briefly also the prospect of plasma processing and its optimization, we have studied during a dedicated application, the POLISTE project [3].
No
paper
Plasma processing, Lignin
English
48th EPS Conference on Plasma Physics
Barni, R., Zoia, L., Orlandi, M., Bellinetto, E., Boumezgane, O., Turri, S., et al. (2022). Plasma processing of nano- and micro-particles in Gliding Arc Tornado device. Intervento presentato a: 48th EPS Conference on Plasma Physics, Maastrict. Olanda.
Barni, R; Zoia, L; Orlandi, M; Bellinetto, E; Boumezgane, O; Turri, S; Griffini, G; Riccardi, C
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/397179
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