Method for the production of activated carbon by partial oxidation of atomized cellulose pulping liquor

Abstract

Abstract A PROCESS FOR THE PRODUCTION OF FINELY DIVIDED CARBON, ACTIVATABLE BY AQUEOUS AND/OR ACID LEACHING, FROM CONCENTRATED SPENT PULPING LIQUOR IN A SINGLE HIGH TEMPERATURE STAGE WHICH PROCESS COMPRISES PASSING THE SPENT LIQUOR UNDER PRESSURE THROUGH AT LEAST ONE ATOMIZING NOZZLE INTO A REACTOR CHAMBER TO FORM AT LEAST ONE HIGH VELOCITY ATOMIZET SPRAY OF FINELY DIVIDED LIQUID DROPLETS INTIMATELY ADMIXED WITH A FREE OXYGEN CONTAINING GAS IN AN AMOUNT SUFFICIENT TO EFFECT A SELECTED PARTIAL OXIDATION OF THE CARBONACEOUS MATERIAL IN SAID LIQUOR, SAID REACTION CHAMBER BEING MAINTAINED AT A HIGH TEMPERATURE SUFFICIENT TO EFFECT SAID SELECTED PARTIAL OXIDATION, EACH ATOMIZED SPRAY BEING PASSED IN SAID CHAMBER THROUGH AN OPEN-ENDED TUBE SUBSTANTIALLY COAXIAL WITH SAID SPRAY AND SPACED FROM BUT ADJACENT TO EACH SPRAY NOZZLE TO CAUSE RECIRCULATION, BY INDUCTION OF A PORTION OF THE HOT GASEOUS PRODUCTS OF SAID PARTIAL OXIDATION TO SAID SPRAY ADJACENT SAID NOZZLE WHEREBY TO MAINTAIN THE REACTION TEMPERATURE OF SAID PARTIAL OXIDATION OF THE CARBONACEOUS MATERIAL IN SAID LIQUOR.

Inventors

• 👤 Steven Prahacs
• 👤 Hugh G Barclay
• 👤 Jean J O Gravel

Bibliographic Details