Patent ID: 7527725

Claim:
A method for upgrading drip oil comprising subjecting said drip oil to a first fractional distillation to form a first overhead stream containing C 6 and C 7 hydrocarbons and a first bottoms stream containing C 8 and heavier hydrocarbons, subjecting said first bottoms stream to a second fractional distillation to form a second overhead stream containing C 8 to C 10 , inclusive, hydrocarbons and a second bottoms stream containing C 11 and heavier hydrocarbons, subjecting said second overhead stream to a third fractional distillation to form a third overhead stream containing C 8 to C 10 , inclusive, hydrocarbons which is aromatic rich, a third bottoms stream which contains C 11 and heavier hydrocarbons, and a first side stream that contains substantial amounts of dicyclopentadiene.