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| \(CH_4\) | Liquefied natural gas | \(C_4H_{10}\) | Wet gas |
| Natural gas | \(C_2H_6\) | Mercaptan | Methane |
| Compressed natural gas | Dry gas | Fossil fuel | \(C_3H_8\) |
The chemical formula for butane is .
2.
has lower levels of hydrocarbons.
3.
The principal hydrocarbon in CNG is .
