Patent ID: 8110155

Claim:
A vortex reactor, comprising: a substantially frustum-shaped portion forming a reaction chamber therein, said frustum-shaped portion having a narrower part that is downwardly oriented; an axial flow apparatus fluidly connected to the reaction chamber for creating an axial gas flow in said reaction chamber, whereby the axial flow apparatus comprises a flow restrictor optionally comprising a vertical rod attached thereto and is configured so as to provide an axial gas flow into the bottom of the reaction chamber, directed upward; a circumferential flow apparatus fluidly connected to the reaction chamber for creating a circumferential gas flow in said reaction chamber; a plasma generating device, configured so that the flow restrictor and/or the vertical rod optionally attached thereto can act as a first electrode and a wall of the frustum-shaped reaction chamber can act as a second electrode of the plasma generating device; an apparatus for applying a voltage difference between said first electrode and said second electrode; a solid particulate inlet connected to said reaction chamber.