Liquefied Natural Gas (LNG) - Bulk
CH4
LNG is produced by the liquefaction of a gaseous natural gas stream. It is filled into T75 cryogenic isocontainers as a liquid or tube skids as a compressed gas for international transport. Skids are approved by DOT, TC, RID / ADR and IMO. Cryogenic containers are approved by UN, RID/ADR, CSC, AAR-600, DOT, TC, TIR, UIC.
Standard Specifications
LNG is sold by its energy value in Mj/Kg. Impurity specifications vary considerably by source. A typical analysis is illustrated below.
| Purity / Assay Impurities (vol) | Typical |
|---|---|
| Methane | 91.087% |
| Ethane | 7.496% |
| Propane | 1.067% |
| n-Butane | 0.179% |
| isoButane | 0.146% |
| n-Pentane | 20ppm |
| Neopentane | < 1ppm (LDL) |
| Isopentane | 100ppm |
| n-Hexane | < 1ppm (LDL) |
| Carbon Dioxide | < 1ppm (LDL) |
| Nitrogen | 120ppm |
Standard Container Sizes and Fill Volumes
| Container Information |  |  |  |
|---|---|---|---|
| Type | Tube Skid | 20’ T75 ISO Container | 40’ T75 ISO Container |
| Contents | 3,120m3 | 7,000kg | 11,400kg |
Technical Information
| Technical Data | Shipping Information | |||
|---|---|---|---|---|
| Gas | Cryogenic Liquid | |||
| Molecular Weight (g/mol) | 16.043 | Shipping Name | Methane, compressed | Natural gas, refrigerated liquid |
| Liquid Density (kg/m³) | 422.6 | Hazard Class | 2.1 | 2.1 |
| Gas Density (kg/m³) | 1.189 | UN No. | UN 1971 | UN 1972 |
| Boiling point (°C) | -161.6 | Hazard Label | Flammable gas | Flammable gas |
| Specific Volume (m³/kg) | 1.48 | CAS No. | 74-82-8 | 74-82-8 |
| Vapour Pressure (bar.a @ 20°C) | N/A | |||
| Valve Outlet | Skid - CGA 1350, T75 container - DN65/DN50-PN40 | |||