Abstract: The present disclosure relates to a plasma reactor for plasma-based gas conversion comprising a plasma chamber and an effusion nozzle coupled to the plasma chamber. The plasma chamber comprises one or more gas inlets configured for introducing a feed gas into the plasma chamber, a first and a second electrode for generating gas discharge plasma, and at least one gas outlet opening for evacuating converted and unconverted feed gas from the plasma chamber. The effusion nozzle comprises a radial circumferential wall radially delimiting a gas-receiving cavity elongating along a central axis from a first end to a second end, and the gas-receiving cavity comprises an axial entrance opening at the first end for receiving the gas flow from the reaction chamber and an axial wall at the second end. The effusion nozzle is forming an extension of the second electrode or the effusion nozzle is forming the second electrode.

Abstract: A slag-removal system for a cutting table includes a pair of drive members arranged in spaced endless loops extending parallel to a longitudinal direction, with a slag plow connected between the drive members, each loop having a lower run and an upper run spaced above the lower run. The slag plow is carried along the lower runs as the drive members are rotated, such that the plow scrapes slag from the support surface beneath the table. As the drive members continue to rotate in the same direction, the plow is carried along the upper runs of the drive members back to its starting location for another slag-removal cycle.