what type of catalyst is used in ammonia
THE AMMONIA MANUFACTURING PROCESS Ammonia is produced in a process known as the Haber process, in which nitrogen and hydrogen react in the presence of an iron catalyst to form ammonia. The hydrogen is formed by reacting natural gas and steam at high temperatures and the nitrogen is supplied from the air 1. 2 + CO 2 Air is mixed in with the gas stream to give a hydrogen:nitrogen ratio of 3:1. Water, carbon monoxide and carbon dioxide (all of which poison the iron catalyst used in the ammonia synthesis) are removed.