公开(公告)号：US12186725B2

公开(公告)日：2025-01-07

申请号：US18578192

申请日：2023-05-12

Applicant: Stamicarbon B.V.

Inventor： Rahul Patil ,  Lambertus Wilhelmus Gevers ,  Markus Theodorus Marie Michaël Wagemans

IPC: B01J19/00 ,  B01J4/00 ,  C07C273/04

Abstract: The disclosure pertains to a high pressure carbamate condensation apparatus for a urea plant, a urea plant, and a urea production method. The apparatus comprises a first U-shaped tube bundle arranged around a second U-shaped tube bundle.

公开(公告)号：US11331593B2

公开(公告)日：2022-05-17

申请号：US17423139

申请日：2020-06-05

Applicant: STAMICARBON B.V.

Inventor： Lambertus Wilhelmus Gevers ,  Juan Coloma González

IPC: B01D1/06 ,  B01D1/28 ,  B01D19/00 ,  C07C273/18 ,  C07C273/04

Abstract: A method is disclosed for stripping in a stripper a urea synthesis solution received from a urea forming process wherein ammonia and CO2 are reacted under urea forming conditions. The shell space of the stripper comprises a continuous vertical zone.

公开(公告)号：US12134590B2

公开(公告)日：2024-11-05

申请号：US18688914

申请日：2023-11-22

Applicant: Stamicarbon B.V.

Inventor： Rahul Patil ,  Johannes Henricus Mennen ,  Lambertus Wilhelmus Gevers

IPC: C07C273/12 ,  B01J3/00 ,  B01J3/02 ,  C07D251/60 ,  C07D251/62

Abstract: The disclosure pertains to a coupled plant process for the production of urea and melamine, with a urea synthesis section with HP CO2 stripping, and with a part of the CO2 feed supplied to a recovery section.