REACTOR FOR CATALYTIC DECONTAMINATION OF ORGANIC WASTES CONTAINING RADIONUCLIDES Russian patent published in 1999 - IPC

FIELD: decontamination by burning mixed wastes containing organic substances, soot, radioactive materials, and ample amount of water. SUBSTANCE: reactor is built up of two coaxially arranged hollow cylinders with annular working space; catalyst fluidized bed is placed between them ; neutron-absorbing insert is placed in internal cylinder. Bottom part of reactor accommodates annular header for air admission, gas distribution lattice, electric heater, and device for introducing organic wastes; low-heat packing divides reactor through height into two regions and limits free circulation of catalyst; top part of reactor houses heat exchanger and pipe connection for discharging steam-gas mixture. External vessel of reactor has flanged joint to provide access to heat exchanger and low-heat packing. Hydraulic cyclone may be installed upstream of injector to deliver wastes to reactor. EFFECT: improved radiation safety and provision for effective heat removal from reaction space. 4 cl, 1 dwg