Process for hydroprocessing of non-petroleum feedstocks

    公开(公告)号:US12195677B2

    公开(公告)日:2025-01-14

    申请号:US17217585

    申请日:2021-03-30

    Abstract: A method of hydroprocessing is performed wherein non-petroleum feedstocks, such as those containing from about 10% or more olefinic compounds or heteroatom contaminants by weight, are treated in a first reaction zone to provide reaction products. The process involves introducing the feedstock along with diluents or a recycle and hydrogen in a first reaction zone and allowing the feed and hydrogen to react in a liquid phase within the first reaction zone to produce reaction products. The reaction products are cooled and/or water is removed from the reaction products. At least a portion of the cooled and/or separated reaction product are introduced as a feed along with hydrogen into a second reaction zone containing a hydroprocessing catalyst. The feed and hydrogen are allowed to react in a liquid phase within the second reaction zone to produce a second-reaction-zone reaction product.

    Methods for Reducing Fouling in Tar Upgrading Processes

    公开(公告)号:US20240384181A1

    公开(公告)日:2024-11-21

    申请号:US18690673

    申请日:2022-10-03

    Abstract: The present disclosure generally relates to methods for reducing fouling in tar upgrading processes and to apparatus for carrying out such processes. In some embodiments, a method is provided that includes providing a first tar stream, combining the first tar stream with a utility fluid to form a first process stream having a viscosity lower than that of the first tar stream, and heating the first process stream in a pre-heater under liquid phase conditions without feeding molecular hydrogen gas into the pre-heater to form a second process stream exiting the pre-heater.

    PRODUCTION OF FUEL HAVING RENEWABLE CONTENT FROM A LOW CARBON NUMBER FRACTION

    公开(公告)号:US20240336854A1

    公开(公告)日:2024-10-10

    申请号:US18578697

    申请日:2022-06-26

    Inventor: Patrick J. Foody

    Abstract: Disclosed is a method for producing a fuel that has renewable content, the method comprising: providing renewable hydrogen sourced at least partially from causing renewable methane from a low carbon number fraction resulting from a conversion process to be fed, or co-fed with fossil material, to a hydrogen production unit to produce the renewable hydrogen, the feed to the conversion process being a carbon-containing renewable feedstock, the low carbon number fraction comprising carbon-containing molecules having 3 carbon atoms or less, the conversion process from which the hydrogen is sourced comprising a separation that fractionates the low carbon number fraction from a high carbon number fraction comprising carbon-containing molecules having 3 carbon atoms or more; and feeding the renewable hydrogen to at least part of a fossil fuel production facility to supply the renewable hydrogen thereto and produce the fuel that has renewable content.

    PROCESS FOR HYDROPROCESSING MATERIALS FROM RENEWABLE SOURCES

    公开(公告)号:US20240182798A1

    公开(公告)日:2024-06-06

    申请号:US18555143

    申请日:2022-05-09

    Abstract: A process for hydroprocessing a renewable feedstock in a fixed-bed reactor system having at least one catalytic bed involves directing a downward flow of the renewable feedstock to a filtering zone having top-open interstitial portions to receive the downward flow and top-covered annular portions that are in fluid communication with a headspace between the filtering zone and a catalytic zone. The feedstock flows from the interstitial portions to the annular portions through a filtering material disposed between the interstitial portions and the annular portions, resulting in a filtered feedstock, which then flows to the catalytic zone. In the catalytic zone, filtered feedstock is reacted under hydroprocessing conditions sufficient to cause a reaction selected from the group consisting of hydrogenation, hydrodeoxygenation, hydrodenitrogenation, hydrodesulphurization, hydrodemetalation, hydrocracking, hydroisomerization, and combinations thereof.

    FILTRATION DEVICE FOR A DOWN-FLOW HYDROPROCESSING REACTOR

    公开(公告)号:US20240181414A1

    公开(公告)日:2024-06-06

    申请号:US18556671

    申请日:2022-04-21

    CPC classification number: B01J8/006 B01D24/04 C10G49/002

    Abstract: A filtration device for a down-flow catalytic hydroprocessing reactor is disclosed. The filtration device may be used in the petroleum and chemical processing industries in catalytic reactions of hydrocarbonaceous feedstocks in the presence of hydrogen, at an elevated temperature and pressure, to remove contaminants from mixed gas and liquid feedstreams to reactor catalyst beds. The filtration device may be provided as a horizontal tray installation at the top of a reactor, whereby feedstream liquid is passed through a filtration media in a radially inward direction from the wall of the reactor to the center of the filtration device and thereafter to the reactor catalyst bed. Among the benefits provided are the minimization of scale and small/fine particulates that reach the catalyst bed below the device, reduced pressure drop through the reactor, even when the filter is completely fouled, and the potential for added catalyst volume due to the reduced need to use catalyst grading materials.

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