Cracking of Vacuum Residue in the Presence of Nanosized Powder of Tungsten Carbide and Nichrome Powder
N. N. SVIRIDENKO, E. B. KRIVTSOV, A. K. GOLOVKO
Institue of Petroleum Chemistry, SB RAS, Tomsk, Russia
Keywords: гудрон, крекинг, углеводороды, смолы, асфальтены, структура молекул, vacuum residue, cracking, hydrocarbons, resins, asphaltenes, molecular structure
Pages: 415-422
Abstract
Cracking of vacuum residue from the Novokuybyshevsk oil refinery was studied. The yields of gaseous, liquid and solid products at a temperature of 500 °C and process duration 10-30 min were determined. The hydrocarbon composition of liquid products was studied. It is shown that the addition of WC/Ni-Cr nanosized powder (NSP) promotes an increase in the yield of the fraction with boiloing temperature up to 360 oC by 66.4 mass % in comparison with initial vacuum residue and by 40.4 mass % in comparison with cracking without NSP. The effect of WC/Ni-Cr NSP on the changes in the molecular structures of high-molecular heteroatomic compounds (resins, asphaltenes) was studied.
DOI: 10.15372/CSD20180410
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