Process for producing coarse particles of active carbon in a fluidized bed with added inert particles

Claim 1

A PROCESS FOR PRODUCING COARSE PARTICLES OF ACTIVE CARBON WHICH CONSISTS ESSENTIALLY OF CONTINOUSLY SUPPLYING TO A FLUIDIZED BED, PARTICLES OF CARBON OR A CARBONACEOUS MATERIAL FROM THE GROUP CONSISTING OF COKE, CHARCOAL, AND COAL HAVING AN AVERAGE PARTICLE SIZE OF 2 TO 20 MM WITH A FINELY POWDERED INERT MATERIAL HAVING A PARTICLE SIZE OF FROM 0.05 TO 2.0 MM, WHICH INERT MATERIAL DOES NOT INTERFERE WITH THE REACTION AND CAN BE READILY SEPARATED FROM THE ACTIVE CARBON THUSPRODUCED, SAID INET MATERIAL BEING PRESENT IN AN AMOUNT OF 1 TO 4 TIMES BY VOLUME OF THE CARBON OR CARBONACEOUS PARTICLES, INTRODUCING A COMBUSTION GAS, A WASTE GAS OR A HOT WASTE GAS OF A TEMPERATURE WITHIN THE RANGE OF 600* TO 20000*C CONTAINING 20 TO 80 PERCENT BY VOLUME OF STEAM INTO THE MIXTURE OF PARTICLES AND INERT MATERIAL SO AS TO EXECUTE THE ACTIVATION OR THE CARBONIZATION AND ACTIVATION OF SAID PARTICLES WHILE THE MIXTURE IS FORMING A FLUIDIZED BED IN THE REACTOR, TAKING OUT THE PRODUCED COARSE PARTICLES OF ACTIVE CARBON TOGETHER WITH THE INERT MATERIAL FROM THE REACTOR, SEPARATING THE PRODUCED COARSE PARTICLES OF ACTIVE CARBON FROM THE INERT MATERIAL, AND RECYCLING SAID INERT PARTICLES TO SAID FLUIDIZED BED; AND WHEREIN IN SAID PROCESS BOTH THE PARTICLES OF CARBON OR CARBONACEOUS MATERIAL AND THE INERT MATERIAL ARE INTRODUCED TO THE LOWER PORTION OF THE FLUIDIZED BED AND TAKEN OUT FROM THE UPPER PORTION OF THE FLUIDIZED BED TO THE OUTSIDE WHILE THE GAS FLOWS TO PASS THROUGH THE FLUIDIZED BED FROM THE LOWER PORTION TO THE UPPER PORTION.