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：US20230131108A1

公开(公告)日：2023-04-27

申请号：US17904888

申请日：2020-03-31

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Bryan A. PATEL ,  Brenda A. RAICH ,  Keith K. ALDOUS

IPC: C10G1/04 ,  C10G1/00 ,  B01D21/26 ,  B01D3/10 ,  B01D3/14

Abstract: Systems and methods are provided for separation of particles and/or asphaltenes from heavy hydrocarbon fractions. The heavy hydrocarbon fraction can correspond to a feed including particles or a processing effluent that includes particles. If the heavy hydrocarbon fraction is mixed with lower boiling fractions, a separation can be performed to reduce or minimize the amount of hydrocarbons that are present in the heavy hydrocarbon fraction. The heavy hydrocarbon fraction can then be mixed with a sufficient amount of a separation solvent to cause a phase separation. One phase can correspond to the separation solvent plus a portion of the hydrocarbons. The other phase can correspond to hydrocarbons rejected by the separation solvent plus the particles from the heavy hydrocarbon fraction. The phases can then be separated from each other using a solids-liquid centrifugal separator.