公开(公告)号：US11814340B2

公开(公告)日：2023-11-14

申请号：US17636257

申请日：2021-06-23

Applicant: STAMICARBON B.V.

Inventor： Wilhelmus Hubertus Geurts

IPC: C07C273/04 ,  B01D5/00 ,  B01J3/02 ,  B01J3/04

CPC classification number: C07C273/04 ,  B01D5/0075 ,  B01J3/02 ,  B01J3/042

Abstract: The disclosure pertains to an urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.

公开(公告)号：US11958792B2

公开(公告)日：2024-04-16

申请号：US18447469

申请日：2023-08-10

Applicant: STAMICARBON B.V.

Inventor： Wilhelmus Hubertus Geurts

IPC: C07C273/04 ,  B01D5/00 ,  B01J3/02 ,  B01J3/04

CPC classification number: C07C273/04 ,  B01D5/0075 ,  B01J3/02 ,  B01J3/042

Abstract: The disclosure pertains to a urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.

公开(公告)号：US12215071B2

公开(公告)日：2025-02-04

申请号：US18609842

申请日：2024-03-19

Applicant: Stamicarbon B.V.

Inventor： Wilhelmus Hubertus Geurts

IPC: C07C273/04 ,  B01D5/00 ,  B01J3/02 ,  B01J3/04

Abstract: The disclosure pertains to a urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.

公开(公告)号：US12060313B2

公开(公告)日：2024-08-13

申请号：US18007232

申请日：2022-02-22

Applicant: STAMICARBON B.V.

Inventor： Wilhelmus Hubertus Geurts

IPC: B01J10/00 ,  B01J19/00 ,  C01C1/18 ,  C07C273/04

CPC classification number: C07C273/04 ,  B01J10/00 ,  B01J19/0053 ,  B01J19/0086 ,  C01C1/185 ,  B01J2219/00006 ,  B01J2219/0002 ,  B01J2219/00038 ,  B01J2219/00761

Abstract: Some embodiments of the disclosure pertain to a plant and a process for producing a urea-containing product. The plant comprises a medium pressure dissociation unit and a high pressure CO2 stripper each receiving a part of the urea synthesis solution. Stripped urea solution is further treated in a medium pressure treatment unit.

公开(公告)号：US11795140B2

公开(公告)日：2023-10-24

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 ,  B01D5/0003 ,  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.