Study on Aromatic Enrichment of FCC Slurry for Synthesizing COPNA

摘要

Fourier Transform Infra red Spectroscopy (FT-IR),Proton Nuclear Magnetic Resonance (~1H-NMR),Carbon 13 Nuclear Magnetic Resonance (~(13)C-NMR) and group compositional analysis were used to characterize the synthesis reaction of fluidized catalytic cracking (FCC) slurry before and after solvent extraction treatment.This investigation provided a great deal of critical information for use in future process development.Before solvent extraction,the FCC slurry is extremely complex.Saturates content is relatively high and there are a variety of aromatic ring substituents.Also,molecular uniformity is poor and chemical steric hindrance is strong.On the contrary,the composition of a fraction enriched in aromatics is relatively simple with excellent uniformity and homogeneous molecular alkyl substituents.The aromatic enriched fraction (FCCRF) from the FCC slurry has weak chemical steric hindrance and,consequently,is more reactive than the original FCC slurry.