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Condensation FCC Oil and Polymer Composite Modified Tahe Asphalt

Author: LiuFeng
Tutor: ShenBenXian
School: East China University of Science and Technology
Course: Chemical processes
Keywords: FCC slurry oil TH residue crosslinking and condensation catalytic crack
CLC: U414
Type: Master's thesis
Year: 2012
Downloads: 88
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Abstract


With the rapid development of China’s national economy, the quality requirements of the road asphalt especially high grade road asphalt is becoming higher. The development of asphalt in China is limited by the crude oil and high quality asphalt cannot be produced, and the increase of catalytic cracking ability leads to substantial production of FCC slurry oil. Based on the purpose of management of TH residue and rational utilization of FCC slurry oil, the improvement of TH residue of low wax and high asphaltine with FCC slurry oil of more aromatic is studied.In this study, the crosslinking condensation reaction of FCC slurry oil and the improvement of TH residue using condensation FCC oil were preliminary investigated. The results showed that DCP crosslinking reaction conditions were:the reaction time for 1.5h2.0h and crosslinking agent for 0.3%～0.4%; under the same conditions, the order of three oil viscosity was:JL FCC> QL FCC> ZH FCC; the improvement effect of TH residue with FCC oil was that the effect of JL FCC was superior to that of JL condensation FCC and the effect of QL condensation FCC was better than that of QL FCC, but the effect of QL FCC oil was keeping the high penetration ratio; combining with basic properties of residue and FCC oil, so the improvement component of TH residue was JL FCC slurry oil. In TH residue with 10%～15% different distillate rate of JL FCC oil, the mixed asphalt can reach 70# or 90# performance, but the residue ductility and the penetration ratio cannot fill the requirements; to improve TH residue with polymer and 400～500℃JL FCC, when the polymer content is 1.0% and the oil content is 9.0%, the penetration of mixed asphalt is 91.8, the softening point is 48.1℃, the 15℃ductility is> 150cm, the penetration ratio is 58.7% and the residue ductility is 10.6cm, and all the indexes reached 90A asphalt standards. And the FCC<400℃distillate oil was inspected with the catalytic cracking process, the analysis results showed that gas diesel oil/oil ratio is 2.38, so distillate oil could be as the agent of catalytic materials or strengthen distillation. Finally, several advanced analysis methods such as1H-NMR, FT-IR and GPC were analysed and calculated the molecular structure parameters of homemade 90# asphalt, the results were that the polymer addition made the molecular weight of asphalt become bigger, the aromatic carbon number and aromatic ring number of colloid structure have been increased greatly, and the change of the components is aromatics→resins→asphaltenes.

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