Ammonia is produced from a mixture of hydrogen (H2 ) and nitrogen (N2 ), where the ratio of N 2 to H 2 will shall be approximately 3:1. Besides these two components, the synthesis gas will contain inert gases-such as argon (Ar) and methane (CH4 ) to a limited degree.

The source of H 2 is the raw water and the hydrocarbons in the natural gas and naphtha. The source of nitrogen is the atmospheric air.