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    Resid upgrading with reduced coke formation
    2.
    发明授权
    Resid upgrading with reduced coke formation 有权

    公开(公告)号：US10752846B2

    公开(公告)日：2020-08-25

    申请号：US15933422

    申请日：2018-03-23

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Stephen H. Brown ,  Brian A. Cunningham ,  Randolph J. Smiley ,  Samia Ilias ,  Brenda A. Raich ,  Tien V. Le

    IPC: C10G69/04 ,  C10G69/06 ,  C10G55/06 ,  C10G7/08 ,  C10G7/06 ,  B01D3/10 ,  B01D3/14 ,  C10G67/04

    Abstract: Systems and methods are provided for improving the processing of heavy or challenged feeds in a refinery based on integrated use of deasphalting, coking, and hydroprocessing. An optional fluid catalytic cracking unit can be included in the integrated system to allow for further improvements. The improved processing can be facilitated based on a process configuration where the vacuum resid fractions and/or other difficult fractions are deasphalted to generate a deasphalted oil and a deasphalter residue or rock fraction. The deasphalted oil can be passed into a hydroprocessing unit for further processing. The rock fraction can be used as the feed to a coking unit. Although deasphalter residue or rock is typically a feed with a high content of micro carbon residue, a high lift deasphalting process can allow a portion of the micro carbon residue in the initial feed to remain with the deasphalted oil. The portion of micro carbon residue that remains in the deasphalted oil can then be upgraded during hydroprocessing and/or during subsequent processing of the feed. By reducing the amount of micro carbon residue passed into a coker for a given initial feed source, the overall capacity for a reaction system to handle heavy feeds can be increased relative to the rate of coke production from the reaction system.

    MODIFICATION OF TEMPERATURE DEPENDENCE OF PITCH VISCOSITY FOR CARBON ARTICLE MANUFACTURE
    3.
    发明申请
    MODIFICATION OF TEMPERATURE DEPENDENCE OF PITCH VISCOSITY FOR CARBON ARTICLE MANUFACTURE 审中-公开

    公开(公告)号：US20190382664A1

    公开(公告)日：2019-12-19

    申请号：US16425255

    申请日：2019-05-29

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Stuart E. Smith ,  Eric B. Sirota ,  Stephen H. Brown

    IPC: C10C3/08

    Abstract: Methods are provided for reducing or minimizing the temperature dependence of a pitch feed or fraction for use in carbon fiber production, such as a mesophase pitch feed or fraction or an isotropic pitch feed or fraction. A pitch sample can be characterized to determine a characteristic temperature and a characteristic viscosity for the sample. One or more solvent extraction processes can also be performed on the pitch and/or the extract and raffinate fractions formed by the solvent extraction(s). The resulting raffinate and extract fractions are then used to form a modified pitch fraction with a T0 value that is lower than the T0 value of the original pitch. The modified pitch fraction can optionally also have a different ηinf value relative to the original pitch.

    Fuel production from FCC products
    4.
    发明授权
    Fuel production from FCC products 有权

    公开(公告)号：US10047299B2

    公开(公告)日：2018-08-14

    申请号：US15197999

    申请日：2016-06-30

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Sheryl B. Rubin-Pitel ,  Kenneth C. H. Kar ,  Stephen H. Brown ,  Federico Barrai ,  Brian A. Cunningham

    IPC: C10L1/06 ,  C10G11/18 ,  C10G69/04 ,  C10L1/08 ,  C10G47/02

    Abstract: Systems and methods are provided for upgrading catalytic slurry oil to form naphtha boiling range and/or distillate boiling range fuel products. It has been unexpectedly discovered that catalytic slurry oil can be separately hydroprocessed under fixed bed conditions to achieve substantial conversion of asphaltenes within the slurry oil (such as substantially complete conversion) while reducing or minimizing the amount of coke formation on the hydroprocessing catalyst. After hydroprocessing, the hydroprocessed effluent can be processed under fluid catalytic cracking conditions to form various products, including distillate boiling range fuels and/or naphtha boiling range fuels. Another portion of the effluent can be suitable for use as a low sulfur fuel oil, such as a fuel oil having a sulfur content of 0.1 wt % or less.

    HYDROPROCESSING OF HIGH DENSITY CRACKED FRACTIONS
    8.
    发明申请
    HYDROPROCESSING OF HIGH DENSITY CRACKED FRACTIONS 审中-公开

    公开(公告)号：US20190010410A1

    公开(公告)日：2019-01-10

    申请号：US16015469

    申请日：2018-06-22

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Stephen H. Brown ,  Brian A. Cunningham ,  Randolph J. Smiley ,  Samia Ilias ,  Jesse R. McManus

    IPC: C10G65/10

    Abstract: Systems and methods are provided for upgrading a high density cracked feedstock, such as a catalytic slurry oil, by hydroprocessing. The upgrading can further include performing a separation on the effluent from hydroprocessing of the cracked feedstock, such as a distillation (i.e., separation based on boiling point) or a solvent-based separation. The separation on the hydroprocessed effluent can allow for separation of an aromatics-enriched fraction and an aromatics-depleted fraction from the hydroprocessed effluent. The aromatics-enriched fraction and aromatics-depleted fraction can then be separately used and/or separately undergo further processing.

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