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Peroxidation of petroleum coke and preparation of porous carbon
GUO Ning1,2, LI Xuejiao2, HOU Yingfei2, LI Chunhu1
(1.College of Chemistry and Chemical Engineering in Ocean University of China, Qingdao 266100, China;2.State Key Laboratory of Heavy Oil Processing in China University of Petroleum, Qingdao 266580, China)
Abstract:
The petroleum coke and oily sludge were used as precursors to prepare porous activated carbon (AC) with activator through pyrolysis. Iodine adsorption value, benzene adsorption value and Brunauer-Emmett-Teller (BET) test were conducted to determine the structural characteristics of the AC samples. And the influence of pretreated petroleum coke by Nitric acid and the microwave power, as well microwave irradiation time on the porous carbon of, were investigated. It is found that the adsorption performance of the activated carbon after nitric acid oxidation treatment is improved significantly. The higher microwave power favors the adsorptive property. The BET specific surface reaches 1396.91 m2/g at the microwave power of 800 W. A significant catalytic effect can be obtained after microwave heating time of around 30 min.
Key words:  petroleum coke  pre-oxidation  oil sludge  co-pyrolysis