LPG is a flammable mixture of two hydrocarbon gases (i.e., butane and propane) used as the feed for olefin units. MCP supplies 40,000 tons of hot LPG and 270,000 – 528,000 tons of refrigerated LPG annually to domestic and foreign markets.
| Typical Test | Unit | Specification | Test Method |
|---|---|---|---|
| GC | ISO 7941 | ||
| C1 | mol% | Max 0.5 | ISO 7942 |
| C2 | mol% | Max 9 | ISO 7943 |
| C5 | mol% | Max 2.5 | ISO 7944 |
| C6+ | mol% | Max 0.4 | ISO 7945 |
| Properties | Unit | Test Method | Result |
|---|---|---|---|
| Vapour Pressure, Gauge@37.8Deg.C | K Pa | ASTM D-1267 or ASTM D-2598 | 420-830 Max |
| Density | – | ASTM D-1657 or ASTM D-2598 | Report |
| Total Sulphur (After Stanched) | PPMW | ASTM D-2784 or ASTM D-3246 | 50 Max |
| Corrosion, Copper Strip 1Hour at 37.8Deg. C | – | ASTM D-1838 | 1 Max |
| Free Water | – | Visual Inspection | None |
| Odorant (Ethyl Mercaptan) (If Stanched Only) | L/1000MT | *Smell Test | 26 |
| Olefin (Required only from complex refinery sources) | %Mole | ASTM D-2163 | 5 Max |
| C2 Hydrocarbons | % Weight | ASTM D-2163 | I Report |
| C3 Propane | % Weight | ASTM D-2163 | Total C3 Saturates 25 30 |
| C4 I-Butane | % Weight | ASTM D-2163 | Total C4 Saturates 7705 |
| CS and Higher Hydrocarbons | % Mole | ASTM D-2163 | 2 Max (Pentenes 0.5 Max) |
| Residue Test | Ml/ 100ml | ASTM D-2158 | 0.05 Max |
| Oil Strain | e | ASTM Oe2158 | Pass |
| Dienes contents as 1,3 Butadiene’s (Required only from complex refinery sources) | % Mole | ASTM D-2163 | 0.5 Max |
| MON (Motor Octane number) | – | ASTM D-2598 | 89 Min |
