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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.19 SNIP: 0.341 CiteScore™: 0.43

ISSN Print: 1093-3611
ISSN Online: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v10.i4.70
pages 557-570

PYROLYSIS OF WOOD IN ARC PLASMA FOR SYNGAS PRODUCTION

Milan Hrabovsky
Institute of Plasma Physics, Academy of Sciences Za Slovankou 3, 182 00, Prague
M. Konrad
TECOSIM Technische Simulation Gmbh Robert-Bosch-Str. 10, D-50769 Collogne, Germany; and Institute of Plasma Physics, Za Slovankou 3, 182 00, Praha 8, Czech Republic
Vladimir Kopecky
Thermal Plasma Department, Institute of Plasma Physics AS CR, Za Slovankou 3, 18200, Praha 8, Czech Republic
M. Hlina
Institute of Plasma Physics, ASCR,, Za Slovankou 3, Prague 8
T. Kavka
Thermal Plasma Department, Institute of Plasma Physics AS CR, Za Slovankou 3, 18200, Praha 8, Czech Republic
O. Chumak
Thermal Plasma Department, Institute of Plasma Physics AS CR, Za Slovankou 3, 18200, Praha 8, Czech Republic
G. van Oost
Department of Applied Physics, Ghent University, Rozier 44, B-9000 Gent, Belgium; and EnviTech S.A., 9830 Sint-Martens-Latern, Belgium
E. Beeckman
Department of Applied Physics, Ghent University, Rozier 44, B-9000 Gent, Belgium; and EnviTech S.A., 9830 Sint-Martens-Latern, Belgium
Benjamin Defoort
Department of Applied Physics, Ghent University, Rozier 44, B-9000 Gent, Belgium; and EnviTech S.A., 9830 Sint-Martens-Latern, Belgium

ABSTRACT

Plasma pyrolysis and gasification for production of syngas is an alternative to convential methods of biomass treatment. Basic analysis of energy balances of plasma gasification of wood is presented in the paper. The experimental reactor equipped with the hybrid gas-water stabilized torch with arc power up to 160 kW has been used in experiments with wood gasification and pyrolysis. The hybrid torch, producing steam plasma with small amount of argon, is characterized by extremely low plasma flow rate and high plasma enthalpy, which results in high process efficiency and optimal composition of produced syngas. The experimental results proved that homogeneous heating of the volume of plasma reactor and proper mixing of plasma with treated material was ensured despite of low plasma mass flow rate and constricted form of plasma jet. The conditions within the reactor ensured complete destruction of tested substance. Depending on operation conditions, the main components of produced syngas were hydrogen (28−46% vol.), CO (44−68%), CO2 (2−8%) and Ar(0.2−8%). No presence of complex hydrocarbons or tar was detected.


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