Study On The Manufacture Of Road Bitumen By Jinzhou Petrochemical Compomy's Vacuum Residue

Vacuum residue, viscosity-decreasing residue and FCC slurry oil are used as the feed. The technology method and process of preparing normal road bitumen by distillation, blending and oxidation are studied in this article. Firstly the author studied JinZhou petrolchemical company's plan of producing normal road bitumen by vacuum distillation of vicosity-decreasing residue. The softening point, penetration, ductility and plash point of bitumen obtained at different pull-out rate are measured. Four groups of qualified road bitumen are analyzed. The results show that road bitumen according with 66#-first or 66#-secend bitumen in standard SH0522-922 by distillation. The author studied the proportion and process of producing road bitumen by blending vacuum residue and viscosity-decreasing residue. The softening point, penetration, ductility and plash point are measured. The results show that normal road bitumen according with standard can also be obtained when the blending proportion of vacuum residue and viscosity-decreasing residue is between 3:7 and 4:6. The proportion in preparing road bitumen by blending viscosity-decreasing residue and deep-out viscosity-decreasing residue is also studied. The analysis of four groups of obtained bitumen show that normal road bitumen according with standard can also be prepared by proper proportional blending of viscosity-decreasing residue and deep-out viscosity-decreasing residue. The bitumen prepared by viscosity-decreasing residue at different time, oxidation temperature 250℃ and 2.0L/min every kilo residue of wind amount. The properties of obtained bitumen show that normal road residue according with 66#-first or 66#-secend can be prepared by mildoxidation of viscosity-decreasing residue. The article also expores the way to prepare road bitumen by blending FCC slurry oil and viscosity-decreasing residue. Firstly FCC-slurry oil and viscosity-decreasing residue are blending. After the vacuum deep-out, qualified road bitumen according with 66~#-first can be prepared at proper pull-out rate.