Patent ID: 7399408
Filing Date: 2008-07-15
Classification: A62D,B01F,B01J,C02F,Y02P

Abstract:
1. An oxidation device for the treatment of a material in a supercritical medium comprising: a main body comprised of a substantially tubular wall equipped at a first end with a flange, a seal, a first inlet for components of supercritical mixture and an evacuation outlet for treated material, the flange being eventually equipped with a tight passage for receiving a rotary shaft and a second of its ends having a second inlet for introducing material to be treated into the device, the main body, the flange and the seal being made of materials resistant to pressures of supercritical medium; an inner tube disposed on the inside of the main body in such a fashion as to form an annular zone along the length of said main body, the inner tube comprising an opening or lumen, a first end and a second end, the first end being fixed with the flange in such a fashion that the lumen of the inner tube is isolated and in such a fashion tight with respect to the annular zone in communication with the treated material outlet and with the passage, the second end of the inner tube being at the second end of the main body in such a fashion that the lumen is at this level in communication with the annular zone and with the second material inlet such that the material to be treated can be introduced at this point and not into the annular zone but directly into the lumen of the inner tube and without reflux of same to the annular zone; an agitator disposed in the lumen of the inner tube and driven of a rotating shaft; a refrigeration device disposed around the main body and over a first part of same in such a fashion as to cool the treated material situated inside the tube prior to its evacuation from the device through the treated material outlet, and a heating device disposed around the main body and over a second part of same in such a fashion as to heat the components of the supercritical medium in order to form the supercritical medium prior to its entry into the inner tube at its second end.