Study on Physical-chemical Properties of Petroleum Cokes
نویسندگان
چکیده
The calcined petroleum cokes are used in production of aluminum anode-grade, graphite electrode, needle-grade, titanium dioxide pigments. Petroleum coke (green and calcined) is produced by the high pressure thermal decomposition of heavy petroleum process streams and residues. Green coke undergoes additional thermal processing to produce calcined coke. Various properties of calcined cokes from several refineries were analyzed. Coke properties evaluated are: moisture, volatile carbon matter, ash and metals (Mo, Ni, Cu, Zn). The results of investigation showed that all coke contains the highest content of nickel (625 to 5353 ppm) which is the most represented metal component in the coking feedstock. The physical-chemical properties showed that analyzed coke has a low volatile matter content, low ash and metallic content in samples A and C. Therefore, coke A and C can be used in production of anodes for the aluminum or as carburizer in the foundries. Due to the high content of the ash and metallic content, coke B, can be recommended as burning agent.
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