The Haber Process

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The Haber Process
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How it works
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Getting the nitrogen and hydrogen

• They firstly extract nitrogen from the air by
  fractional distillation and collect this
• They then get the hydrogen from burning
  hydrocarbons such as methane, with high pressured
  steam and a catalyst, giving hydrogen, CO and
  some buckminster fullerene.

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Making the ammonia

• Next they pump the pressurised nitrogen and
  hydrogen into a chamber at 450C with an iron
  catalyst
• Some will turn to ammonia and it will all be
  cooled, with the unreacted nitrogen and hydrogen
  being recycled

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What happens to the ammonia next?

• The ammonia is cooled to a liquid and put in
  containers. It is then sold to farmers to
  fertilise their crops and get a better yield

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What amount of each gas is needed?

• To make ammonia in the Haber Process they use 1
  part nitrogen to 3 parts hydrogen and ammonia is
  NH3
• This means that for it to be the most efficient
  they need that relative amount of hydrogen and
  nitrogen