公开(公告)号：DK142361C

公开(公告)日：1981-03-30

申请号：DK132476

申请日：1976-03-25

Applicant: SNAMPROGETTI S.P.A.

Inventor： PAGANI G

IPC: C01C1/04 ,  C07C67/00 ,  C07C239/00 ,  C07C273/04 ,  C07C273/10

Abstract: In an integrated flexible installation for producing ammonia and urea, the improved method which consists in that a portion of the gaseous stream comprising carbon dioxide, hydrogen and nitrogen is fed to a complementary decarbonation area and then admixed with a portion of a similar, but non-decarbonated stream of gas prior to entering the carbon-dioxide-absorption unit. Liquid ammonia is recovered from a portion of the ammoniated aqueous solution used for abating the ammonia and sent to a distillation column to recover liquid ammonia therefrom.