1981 Pagani Snamprogetti 4291006 Integrated NH3-Urea

In an integrated or combined process for the production of ammonia and urea, the improvement consisting in that the absorption of CO2 from the raw gas going to the synthesis reactor for ammonia is carried out with an absorption apparatus which is divided into two sections. One being a plate type and the other of a thin film type. The predominant fraction of CO2 is stripped in the thin film section, the remainder in the adiabatic plate section.


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