Light Cycle Oil (LCO)
Light Cycle Oil (LCO) is a diesel boiling range product from Fluid Catalytic Cracking Units (FCCUs). However, LCO is a poor diesel fuel blending component without further processing. Oil refining is an industrial process which involves separation, conversion and finishing. FCC centred refinery uses Fluid Catalytic Cracking Unit (FCCU) has the major conversion unit. FCCU is responsible for the production of petrol (gasoline), liquid petroleum gas (LPG), unsaturated olefin compounds, cracked gas oils, cycle oil, light gases and a solid coke residue. LCO may be processed further to break it down into more useful products; in particular it may be mixed with heavier products and put through the refining process again.
Light Cycle Oil (LCO)
*** During October – March winter specification: Pour Point not more than –15 ºC / Cloud Point –8 ºC Max.
*** April – September summer specification: Pour Point not more than –10 ºC / Cloud Point –5 ºC Max.
Technical specifications
| Sr. | Constituents | Test Method | Limit | |
|---|---|---|---|---|
| 1 | Density @ 15 ºC Kg/L | ASTM D4052 | Min 0.82 | Max 0.88 |
| 2 | Colour ASTM | Brownish Colour | ||
| 3 | Cetane Index (D4737) | ASTM D4737 | Min 35.00 | |
| 4 | Carbon MCRT wt% | ASTM D4530 | Max 0.20 | |
| 5 | Pour Point Degree ºC | ASTM D97 | Min –25 | Max –5 |
| 6. | Flash Point PM Degree ºC | ASTM 93 | Max 63 | |
| 7. | Distillation Degree ºC | ASTM 86 | ||
| 8 | IBP | Report | ||
| 9 | 50% | Report | ||
| 10 | 90% | Max 370 | ||
| 11 | 95% | Max 380 | ||
| 12 | Final Point | Max 390 | ||
| 13 | Recovery @ 250 Degree ºC, vol% | Max 90 | ||
| 14 | Sulphur mass% | ASTM 4294 | Max 0.15 | |
| 15 | Viscos KIN @ 40 Degree mm, CST | ASTM 445 | Max 4.0 | |
| 16 | Moisture Content wt ppm | ASTM D6304 | Max 1000 | |
| 17 | Ash mass% | ASTM D482 | Max 0.05 | |
| 18 | Aromatic wt% | IP 391 | Min 50 | Max 80 |
| 19 | BS & W, wt ppm | Max 1000 | ||
| 20 | Saturates % | ASTM D1319 | Min –20 | Max 50 |