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Article | REF: J6135 V2

Ammonia

Author: Asmaa ROUWANE

Publication date: January 10, 2018, Review date: January 20, 2023

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1. Industrial manufacturing

1.1 Process principle

It involves reacting dihydrogen from hydrocarbons and water with nitrogen from the air, in the presence of a catalyst. Dihydrogen is produced mainly by steam reforming of hydrocarbons, followed by steam conversion of the carbon monoxide produced.

The dihydrogen is purified of all accompanying oxygen compounds, before being fed into the catalytic reactor for ammonia synthesis.

The main reactions implemented are as follows.

Hydrocarbon reforming (endothermic) :

CnHm+n H2O→n CO+(n+m2) H2

...

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