Heavy Naphta
Heavy naphtha is a distillation cut primarily made up of material roughly the same density as finished gasoline. Heavy naphtha molecules typically have from 7-9 carbon atoms. Its boiling range can be from 180F to 330F.
Most of the heavy naphtha in a refinery comes directly from the atmospheric distillation unit. However, additional volumes may come from the hydrocracker (as heavy hydrocrackate) or from the coker (as coker naphtha).
PRODUCT DATA SHEET
| Analysis | Unit | limit | Test Method |
|---|---|---|---|
| Density @ 15.0 °C | Kg/m3 | 0.7580 Max | ASTM 01298 |
| Distillation | °C | ASTM 086 | |
| 10 % Evaporated Temp | °C | 120 Max | ASTM 086 |
| 50 % Evaporated Temp | °C | 115 Min | ASTM 086 |
| 95 % Evaporated Temp | °C | 150-170 | ASTM 086 |
| F.B.P | °C | 180 Max | ASTM 086 |
| Residue | %Vol | 1.5 Max | ASTM 086 |
| Loss | %Vol | 1 Max | ASTM 086 |
| Total Sulphur | %Wt | 0.08 Max | ASTM 01266 |
| Corrosion 3 HRS | 50°C | No 1 strip | ASTM 0130 |
| Vapour Pressure | K.Pa | 27 Max | ASTM 0323 |
| Mercaphtan Content | ppm | 70 Min | ASTM 03227 |
| Colour, Saybolt | - | 25 Min | ASTM 0156 |
| Paraffins Content | %Vol | 50 Min | ASTM 01319 |
| Oleffins Content | %Vol | 1.5 Max | ASTM 01319 |
| (Naphthenes + Aromatics) Content | %Vol | 40 Min | ASTM 01319 |
| Lead (PB) P.P.B | UOP | 40 Max | 350-68T |
| C/H Ratio | Estimated | 6 Max | Calculate |
| Gum Existent (air jet) | Mg/100ml | 2.5 Max | ASTM 0381 |
| Oxygenates | ppm | 60 Max | ASTM 04815 |