It is believed that the word "gas" comes from the Greek word for chaos or the French word gaz, which characterizes the state of matter, uniformly fills the volume of something.
Net natural gas has no color and smell. The main part of it is methane. Natural gas is a mineral resources. In the composition of natural gas may include heavier hydrocarbons such as propane, butane, which are obtained by extracting oil.
Liquefied mixture of these two hydrocarbons called propane-butane, which is widely used in everyday life and as fuel for cars.
The main advantages of this gas:
- it is combustible;
- heavier than air;
- not toxic and not harmful to health;
- fairly well evaporates;
- convenient to use.
To facilitate transportation and storage of the gas it szhizhajut, cooling at elevated pressure, thereby obtaining liquefied natural gas.
