公开(公告)号：US20250025828A1

公开(公告)日：2025-01-23

申请号：US18714213

申请日：2022-11-28

Applicant: TOTALENERGIES ONETECH

Inventor： Parveen KUMAR ,  Walter VERMEIREN

IPC: B01D53/14 ,  B01D53/18 ,  B01D53/62 ,  B01D53/78 ,  B01D53/96

Abstract: Method to desorb CO2 in a CO2-rich solvent in a stripper column comprising the steps of providing a first stream comprising a CO2-rich solvent; providing a stripper column; passing the first stream through the stripper column; recovering a CO2-rich effluent and a re-boiler stream from the stripper column and passing the reboiler stream through the reboiler and recovering a second stream comprising a CO2-lean solvent from the reboiler. The method further comprises one or more steps of hydrodynamic cavitation which are performed on the first stream and/or on the reboiler stream, each stream presenting an initial flow velocity and an initial static pressure, wherein hydrodynamic cavitation is performed by increasing the initial flow velocity of the stream and subsequently decreasing the initial static pressure of the stream, and wherein hydrodynamic cavitation is performed within the stripper column and/or on a stream directly entering or directly exiting the stripper column.

公开(公告)号：US20250041831A1

公开(公告)日：2025-02-06

申请号：US18718119

申请日：2022-12-22

Applicant: TOTALENERGIES ONETECH

Inventor： Parveen KUMAR ,  Maxime LACROIX ,  Bert SELS ,  Cheng ZHOU ,  Yuhe LIAO

IPC: B01J21/06 ,  B01D53/14 ,  B01D53/62 ,  B01D53/78 ,  B01D53/96 ,  B01J23/06 ,  B01J23/10 ,  B01J37/03 ,  B01J37/08

Abstract: The present invention relates to a process for CO2 desorption in an overall CO2 absorption/desorption procedure. The present invention in particular relates to a process and a system for the catalytic CO2 desorption steps, in the presence of at least one Zr-based catalyst. The present invention also relates to a suitable Zr-based catalyst for the CO2 desorption process, and to methods for preparing such a catalyst.