湿气与干气组分
| Range of Composition for Wet and Dry Natural Gas | |||
|---|---|---|---|
| Composition (vol%) | |||
| Constituents | Wet | Dry | Range |
| Hydrocarbons | |||
| Methane | 84.6 | 96.0 | |
| Ethane | 6.4 | 2.0 | |
| Propane | 5.3 | 0.6 | |
| Iso-Butane | 1.2 | 0.18 | |
| n-Butane | 1.4 | 0.12 | |
| Isopentane | 0.4 | 0.14 | |
| n-Pentane | 0.2 | 0.06 | |
| Hexanes | 0.4 | 0.10 | |
| Heptanes | 0.1 | 0.80 | |
| Nonhydrocarbons | |||
| Carbon dioxide | 0-5 | ||
| Helium | 0-0.5 | ||
| Hydrogen sulfide | 0-5 | ||
| Nitrogen | 0-10 | ||
| Argon | 0-0.05 | ||
| Radon, krypton, xenon | Traces | ||