Preparation of High-Specific Surface Area-Activated Carbon with Oil-Bearing Mud Residue

摘要

Oil-bearing mud residue is a hazardous waste composed of minerals, mineral oil, and water. It is characterized by a high yield and a high content of heavy oil. It is not comprehensively utilized and is difficult to process. The primary sources are oil sludge and oil sand from petroleum exploration and development and from petrochemical production. Oil-bearing mud residue is declared a hazardous waste by Chinese law. Thus, its treatment and application is a problem requiring an immediate solution for petroleum and petrochemical industries. Using oil-bearing mud residue as feedstock and NaOH as the activator this study demonstrates production of activated carbon with high specific surface area. Features of this activated carbon include a specific surface area up to 2,700 m~2/g and even pore size. Average pore size is less than 2 nm and total pore volume exceeds 2 cm~3/g. This method provides a new approach for recycling oil-bearing mud residue.