The term NATURAL
GAS is used for two
different but related things
1. NATURAL GAS: a
mixture of methane and ethane, where the methane gas is the one in the
biggest proportion, used in homes for cooking and heating, for public
transport and in industry.It can be produced with the distillation of
different organic materials or obtained from natural Earth resources.
2. NATURAL GAS: a mixture of
different gases that comes out from the Earth’s deposits: The
composition of this mixture is different from one deposit to another. In
general it has methane, ethane, propane, butane, hexane, heptane (in
short we write C1, C2, C3, C4, C6, C7
according to the number of carbon atoms of their molecules) water
vapour, sulphur oxides and a great quantity of hydrogen sulphide..