公开(公告)号：US20250058270A1

公开(公告)日：2025-02-20

申请号：US18799121

申请日：2024-08-09

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Justin A. FEDERICI ,  Jayashree KALYANARAMAN ,  Eric R. SIMMERS ,  Eric B. SHEN ,  Clay R. SUTTON ,  Lisa S. BAUGH

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

Abstract: Systems and methods are provided for performing amine capture on a heated flue gas using multiple rotating packed beds. By integrating a series of rotating packed beds to perform cooling of the flue gas, removal of CO2 from the flue gas by contact with an aqueous amine, and washing of the gaseous effluent from CO2 removal step to remove any entrained amine, the equipment footprint and overall equipment volume required for CO2 capture can be significantly reduced. The integration of cooling, CO2 removal, and washing can be integrated into a series of packed beds in part by using different packing materials in the various packed beds.

公开(公告)号：US20220325189A1

公开(公告)日：2022-10-13

申请号：US17639854

申请日：2020-08-14

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Eric B. SHEN ,  Anjaneya S. KOVVALI ,  Aruna RAMKRISHNAN ,  Arun K. SHARMA ,  Samuel J. CADY ,  Stephen H. BROWN ,  Rustom M. BILLIMORIA ,  Brenda A. RAICH ,  Bryan A. PATEL ,  Phillip K. SCHOCH ,  John DELLA MORA

IPC: C10G21/00 ,  C10G67/04 ,  C10G47/26 ,  C10G65/12

Abstract: Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport. In still other aspects, the systems and methods can allow for reduced incorporation of external streams into the final product for transport while still satisfying one or more target properties.

公开(公告)号：US20220315844A1

公开(公告)日：2022-10-06

申请号：US17640105

申请日：2020-08-14

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Samuel J. CADY ,  Stephen H. BROWN ,  Eric B. SHEN

IPC: C10G47/26

Abstract: Systems and methods are provided for performing slurry hydroconversion of feeds that include substantial amounts of 1050° F+ (566° C+) components. The productivity of the slurry hydroconversion reaction is improved by recycling slurry hydroconversion pitch or bottoms back to the slurry hydroprocessing reaction system. The mass flow rate of the recycle stream can correspond to 50% or more of the mass flow rate of the fresh feed to the reaction system, and the recycle stream can include more than 50 wt % of 566° C+ components. It has been discovered that using a substantial recycle stream composed of a majority of unconverted 566° C+ bottoms can increase the productivity of the slurry hydroprocessing reaction system when operating at a net conversion relative to 524° C (975° F) of less than 90 wt %. Additionally, by using a recycle stream composed of a majority of 566° C+ components, the amount of lower boiling components (in the heavy hydrocarbon feed and/or in the recycle stream) that are exposed multiple times to the slurry hydroprocessing environment is reduced or minimized This can allow for formation of slurry hydroconversion products with increased amounts of vacuum gas oil boiling range components.