公开(公告)号：US20250091892A1

公开(公告)日：2025-03-20

申请号：US18884522

申请日：2024-09-13

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Joseph S. Famolaro ,  Theresa J. Hochhalter ,  Masaaki Sugita

IPC: C01F11/18 ,  B01D53/62 ,  B01D53/78 ,  C01F5/24

Abstract: Systems and methods are provided for using a two-step process to capture CO2 from a process flue gas in an aqueous solution followed by conversion of the captured CO2 into metal carbonates for storage, transport, or other potential uses. In the first processing step, CO2 is removed from a process flue gas by contacting the process flue gas with an aqueous solution at a sufficiently high pH to enhance capture of the CO2 while reducing or minimizing other impacts on the vessel where capture is performed. The CO2-enriched aqueous solution is then passed into a second zone, such as a second vessel, for contact with a metal reagent, such as a metal oxide, metal sulfide, metal hydroxide, and/or metal silicate.

公开(公告)号：US12195676B2

公开(公告)日：2025-01-14

申请号：US18091095

申请日：2022-12-29

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY ,  Petrochemical Research Institute

Inventor： Colin Lee Beswick ,  Bing Du ,  Daniel J. Garcia ,  Hyung Rae Kim ,  Prateek Mehta ,  Arun K. Sharma ,  Xiaochun Xu ,  Masaaki Sugita ,  William J. Knaeble ,  Zhiyan Wang

IPC: C10G11/00 ,  C10G11/18

Abstract: Systems and methods are provided for expanding the operating envelope for an FCC reaction system while also reducing or minimizing the net environmental CO2 emissions associated with the FCC reaction system and/or the resulting FCC products. In some aspects, reducing or minimizing net environmental CO2 emissions can be achieved during processing of unconventional feeds, such as feeds that are traditionally viewed as having insufficient tendency to coke in order to maintain heat balance within an FCC reaction system. In other aspects, this can correspond to expanding the production of diesel within an FCC reaction system by modifying the reaction conditions in a manner that can cause a reaction system to fall out of heat balance (relative to the heat needed to maintain a target operating temperature) even when using conventional feeds.

公开(公告)号：US12152202B2

公开(公告)日：2024-11-26

申请号：US18091127

申请日：2022-12-29

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY ,  Petrochemical Research Institute

Inventor： Colin Lee Beswick ,  Bing Du ,  Daniel J. Garcia ,  Hyung Rae Kim ,  Prateek Mehta ,  Arun K. Sharma ,  Xiaochun Xu ,  Masaaki Sugita ,  William J. Knaeble ,  Zhiyan Wang

IPC: C10G11/00 ,  C10G11/18

Abstract: Systems and methods are provided for expanding the operating envelope for an FCC reaction system while also reducing or minimizing the net environmental CO2 emissions associated with the FCC reaction system and/or the resulting FCC products. In some aspects, reducing or minimizing net environmental CO2 emissions can be achieved during processing of unconventional feeds, such as feeds that are traditionally viewed as having insufficient tendency to coke in order to maintain heat balance within an FCC reaction system. In other aspects, this can correspond to expanding the production of diesel within an FCC reaction system by modifying the reaction conditions in a manner that can cause a reaction system to fall out of heat balance (relative to the heat needed to maintain a target operating temperature) even when using conventional feeds.

公开(公告)号：US20250043195A1

公开(公告)日：2025-02-06

申请号：US18365559

申请日：2023-08-04

Applicant: Exxonmobil Technology and Engineering Company ,  Petrochemical Reseach Institute

Inventor： Vinit CHOUDHARY ,  Yosuke Sano ,  Hyung Rae Kim ,  Joseph Famolaro ,  Masaaki Sugita ,  Bing Du ,  Arun Sharma ,  Colin L. Beswick ,  Hyungsik Lee

IPC: C10G11/05 ,  B01D47/10 ,  B01D53/14 ,  B01D53/75 ,  B01D53/86 ,  B01J38/14 ,  B03C3/017 ,  B03C3/16

Abstract: In various aspects, systems and methods are provided for operating an oxygen-fired catalyst regenerator with flue gas recycle and CO2 capture. An oxygen-fired catalyst regenerator contrasts with an air-fired regenerator. The oxygen-fired catalyst regenerator substantially reduces nitrogen within the system, which facilitates CO2 capture by reducing the energy required to capture CO2. In various aspects, a first portion of the regenerator flue gas is passed to a CO2 capture system and a second portion is recycled to the regenerator. Before the flue gas is recycled or diverted to the CO2 capture, it is passed to various processes that remove and/or reduce SOx, NOx, particulate, and water content. In various aspects, a portion of the treated flue gas may be combined with substantially pure O2 and recycled to the regenerator.