COMPOSITION CHANGES IN THE CO-CARBONIZATION OF FCC SLURRY AND VR

The HS, TS, PS, PI of the compounds in vacuum residue (VR) after co carbonisation with various ratios of fluid catalytic crack (FCC) slurry at 490?℃ under 0.8?MPa for different times were determined. The HS and TS compounds of the products after reaction for 1?h were analyzed by 1?H NMR. The results showed that the FCC slurry additions moderated the reactivity of VR, decreased the reaction rate and increased the solubility of the reaction system for the large molecules formed in early stages of carbonization. This was reflected in the properties of the 1?h intermediate products indicating that the higher the aromaticity, the fewer substitute groups and the shorter the side chains, then the higher the solubility of the system.