公开(公告)号：US20240279165A1

公开(公告)日：2024-08-22

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

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：US20230265051A1

公开(公告)日：2023-08-24

申请号：US18007232

申请日：2022-02-22

Applicant: STAMICARBON B.V.

Inventor： Wilhelmus Hubertus GEURTS

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

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

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：US20240279164A1

公开(公告)日：2024-08-22

申请号：US18609819

申请日：2024-03-19

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：US20240270684A1

公开(公告)日：2024-08-15

申请号：US18553330

申请日：2023-07-06

Applicant: Stamicarbon B.V.

Inventor： Ahmed ABDELMAGID ,  Wilhelmus Hubertus GEURTS

IPC: C07C273/12 ,  C07C273/04 ,  C07C273/16 ,  C07D251/60 ,  C07D251/62

CPC classification number: C07C273/12 ,  C07C273/04 ,  C07C273/16 ,  C07D251/60 ,  C07D251/62

Abstract: The disclosure pertains to a process for the production of urea and melamine, wherein off-has from a high pressure melamine plant is combined with a urea liquid obtained from flashing of a urea synthesis solution. Also disclosed is a system for the combined production, and the modification of an existing plant or system.

公开(公告)号：US20230382849A1

公开(公告)日：2023-11-30

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：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.

公开(公告)号：US20220274916A1

公开(公告)日：2022-09-01

申请号：US17636257

申请日：2021-06-23

Applicant: STAMICARBON B.V.

Inventor： Wilhelmus Hubertus GEURTS

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

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.