STUDY OF THE NATURE OF CLARIFIED OILS AND THEIR POTENTIAL USES

Vacuum Gas Oils (VGOs) from waxy crudes contain appreciable amount of wax. During catalytic cracking of VGO, due to lop sided cracking of n- paraffins, substantial amount of wax is retained in clarified oils. Th ese clarified oils generally find their way in refinery fuel. The chem ical nature of the clarified oils has been studied. Wax separated were characterised through nuclear magnetic resonance(n.m.r) and infrared( i.r) spectroscopy. The groupwise composition of the clarified oils hav e also been studied and the data has been compared with a typical shor t residue. Waxes separated from the clarified oils contain appreciably high proportion of n-paraffins indicating a potential feedstock for m aking alpha- olefins. Group type composition shows that the polar arom atics separated from the clarified oils have high BMCI values indicati ng the possibility of using it as feed stocks for carbon rich material s.