MARCOPOLO PETROLEUM RESOURCES
SPECIFICATION OF LNG
| Component / Substance | Permissible Limit |
|---|---|
| Gross Heating Value (GCV) Range | 9,340 - 10,420 Kcal / SCM (1,050 - 1,170 BTU / SCF) |
| Methane | not less than 85.0 Mol% |
| Ethane | not more than 9.2 Mol% |
| Propane | not more than 3.00 Mol % |
| Butanes and heavier | not more than 2.00 Mol% |
| Pentanes and heavier | not more than 0.25 Mol% |
| Nitrogen | 1.0 molecular % |
| Total Sulphur | 10.0 ppm (w) |
| Sulphurin form of Hydrogen Sulphide | 10.0 ppm (w) |
| Maximum variation in Wobbe Index (WI) [ WI = LHV (Volumetric Basis) / (Specific Gravity w.r.t. Air) 0.5 ] | +/- 5.0% |
| Contaminants | |
| (a) Trace Metals | |
| i. Pb + Zn | 0.50 ppm (w) |
| ii. Na + K | 0.30 ppm (w) |
| iii. Vanadium | 0.50 ppm (w) |
| iv. Calcium | 2.0 ppm (w) |
| v. Magnesium | 2.0 ppm (w) |
| vi. Sum of heavy metals (Hg + V + Pb + Zn + Ni + Others) | 1.0 ppm (w) |
| (b) Solid / Particulates | |
| i. Total for particle size up to 10 micron | |
| ii. For 2 micron < d < 10 micron | 20.0 ppm (w) |
| iii. For particle size greater than 10 micron | 1.SO ppm (w) |
| 0.30 ppm (w) | |
| (c) Liquid contents | Nil |
| (d) Moisture | 112 kg / million SCM |
| Hydrogen content | 1.00 % (by volume) |
| Acetylene (C2H2) | 0.10 % (by volume) |
| Higher Hydrocarbons for n >= 3 | 10.0 % (by volume) |
Summer from March to October (PP - 5.0 degrees C)
Summer from March to October (CP - 0.0 degrees C)
Winter from November to February (PP - 10.0 degrees C)