公开(公告)号：US20230227402A1

公开(公告)日：2023-07-20

申请号：US18006046

申请日：2022-06-10

Applicant: STAMICARBON B.V.

Inventor： Josef CHROUST ,  Wilhelmus Hubertus GEURTS

IPC: C07C273/04 ,  B01J19/00 ,  B01D3/00 ,  B01D5/00 ,  B01D19/00

CPC classification number: C07C273/04 ,  B01D3/009 ,  B01D5/0003 ,  B01D5/0039 ,  B01D5/0057 ,  B01D19/0036 ,  B01J19/002 ,  B01J2219/00024 ,  B01J2219/00245

Abstract: The disclosure pertains to a urea production plant and process using a high-pressure CO2 stripper, downstream medium-pressure treatment unit and a medium-pressure dissociator receiving urea synthesis solution from the reactor, wherein gas from the treatment unit and dissociator are condensed in a first condenser and off-gas from the synthesis section is condensed separately in a second condenser. A revamping method is also described.