الوصف

Light cycle Oil (LCO) is a middle distillate from FCC (fluid catalytic cracking) units with high sulfur (up to 4 wt.%), Nitrogen (up to **0 mg/kg), and aromatic contents (up to nearly *0 wt.%) [1, 2], which make the processing of this middle distillate very difficult and suitable to comply with the environmental legislation. 

It is a liquid residue used in the oil industry during catalytic cracking to convert heavy hydrocarbon residues from the early stages of crude oil refining to lighter, more valuable products.

Cycle oils may be further processed to break down into more useful products. In particular, it may be mixed with heavier products and re-refined.

Saturates *2.*1, Monoaromatics *2.*9,Diaromatics *2.*5 Polyaromatics *2.*5