Abstract In preparing activated carbon by carbonizing and then activating cellulosic material impregnated with activating agent, the process of the invention is characterized by continuously supplying said activating agent-impregnated material into a carbonizing zone containing previously carbonized cellulosic material at such a constant flow rate as to allow the impregnated material to reside in the carbonizing zone at least for 15 minutes and carbonizing the impregnated material in said carbonizing zone with the carbonized cellulosic material which is heated at 150* to 350* C. by counter currently supplied hot gases and which forms an agitated fluidized bed by being fluidized with the hot gas stream and being stirred by a mechanical means.
The method for the continuous manufacture of activated carbon as set forth in claim 1, wherein said activating agent is zinc chloride.
Claim 2
Dependent Claim
30 words
The method for the continuous manufacture of activated carbon as set forth in claim 1, wherein said carbonized material charged in the carbonizing zone is heated at 200* to 300*C.
Claim 3
Dependent Claim
34 words
The method for the continuous manufacture of activated carbon as set forth in claim 1, wherein said activating agent-impregnated cellulosic material is allowed to reside in the carbonizing zone for 30 to 120 minutes.
Claim 4
Dependent Claim
50 words
The method for the continuous manufacture of activated carbon as set forth in claim 1, wherein said activating agent-impregnated cellulosic material is supplied in dry weight to The carbonizing zone at a supply rate per minute of (1/15) to (1/60) the weight of the carbonized material in the carbonizing zone.
Claim 5
Dependent Claim
39 words
The method for the continuous manufacture of activated carbon as set forth in claim 5, wherein said supply rate per minute is in the range of (1/20) to (1/40) the weight of the carbonized material in the carbonizing zone.