公开(公告)号：US20200254377A1

公开(公告)日：2020-08-13

申请号：US16652607

申请日：2018-10-25

Applicant: SAIPEM S.p.A.

Inventor： Cristina Cerrone ,  Jacopo Cedrati

IPC: B01D53/00 ,  B01D53/14 ,  B01D3/10 ,  C07C273/16

Abstract: An apparatus for treatment of process vapours coming from a vacuum concentration section of a urea plant, comprising a vacuum system having a plurality of successive condensation stages, connected in series by respective line portions and crossed in series by process vapours to be treated; the apparatus has at least one primary steam condensate inlet for feeding steam condensate to the vacuum system and positioned, with reference to a circulation direction of the process vapours in the vacuum system, upstream of at least one selected condensation stage, or in at least one selected condensation stage.

公开(公告)号：US11376542B2

公开(公告)日：2022-07-05

申请号：US16652607

申请日：2018-10-25

Applicant: SAIPEM S.p.A.

Inventor： Cristina Cerrone ,  Jacopo Cedrati

IPC: B01D53/00 ,  C07C273/16 ,  B01D3/10 ,  B01D53/14

Abstract: An apparatus for treatment of process vapours coming from a vacuum concentration section of a urea plant, comprising a vacuum system having a plurality of successive condensation stages, connected in series by respective line portions and crossed in series by process vapours to be treated; the apparatus has at least one primary steam condensate inlet for feeding steam condensate to the vacuum system and positioned, with reference to a circulation direction of the process vapours in the vacuum system, upstream of at least one selected condensation stage, or in at least one selected condensation stage.