Process and apparatus for the combined production of synthetic ammonia and pure hydrogen.

摘要

The invention relates to the combined production, from synthesis gas, of pure hydrogen and ammonia. A synthesis gas flow is withdrawn (at 21) and treated first in a permeation unit (24) with return (at 28) of the unpermeated gas, whereas the permeate (32) is treated by adsorption (at 34) (35) (36), which makes it possible to produce (at 57) very pure hydrogen. The process has a very good energy yield.