DECREASING HEAVY GASOIL FOULING
    1.
    发明公开

    公开(公告)号:US20240191147A1

    公开(公告)日:2024-06-13

    申请号:US18506264

    申请日:2023-11-10

    摘要: Processes for rapidly and accurately predicting the fouling potential of a heavy petroleum fraction in a commercial refinery, informing the selection of one or more interventions to prevent or decrease the rate of said fouling. The process utilizes several specialized 13C Nuclear Magnetic Resonance procedures to more accurately quantify tertiary and quaternary bridgehead aromatic carbon in the heavy petroleum fraction This permits more accurate calculation of a Condensation Index for the heavy petroleum fraction to more accurately predict fouling potential of the fraction. When the condensation index is at or above a threshold value, the process implements one or more responses to improve operational efficiency of the commercial refinery.

    INTEGRATING EBULLATED BED HYDROCRACKING AND COKING UNITS

    公开(公告)号:US20220025283A1

    公开(公告)日:2022-01-27

    申请号:US17385402

    申请日:2021-07-26

    摘要: Integrated processes and systems for the production of distillate hydrocarbons and coke. The process may include feeding a hydrocarbon feedstock, comprising a residuum hydrocarbon fraction, to a residue hydrocracking reactor system to convert hydrocarbons therein, producing a hydrocracked effluent. The hydrocracked effluent may then be fed to a separation system, separating the hydrocracked effluent into one or more distillate hydrocarbon fractions and a vacuum residue fraction. The vacuum residue fraction may be fed to a coker system, converting the vacuum residue fraction into a coke product and a coker vapor effluent, recovering the coke product, and feeding the coker vapor effluent to the separation system. The one or more distillate hydrocarbon fractions are hydroprocessed to produce a hydroprocessed effluent, and the hydroprocessed effluent is separated into product distillate hydrocarbon fractions.

    Quench-box assembly for hydroprocessing reactors

    公开(公告)号:US20220001341A1

    公开(公告)日:2022-01-06

    申请号:US17364182

    申请日:2021-06-30

    摘要: The invention relates to Quench box assembly comprising quench pipe and quench box, to mix quench gas and vapor-liquid effluent from previous catalyst bed to achieve equilibrium temperature before entering the next bed. The quench pipe is in the form of ring having aperture while quench box consists of swirling section and a mixing chamber. The swirling section consists of inclined baffles to provide swirling action to incoming stream and the turbulence created by the swirling action increases the heat transfer rate thus requiring the smaller reactor volume to attain equilibrium temperature. The perforated plate being open from all the sides allowing the liquid to flow uniformly from all directions thus providing uniform distribution on the distributor tray. Hence, eliminates the requirement of rough liquid distributor before the distribution tray.

    Production of products with favourable GHG emission reductions from cellulosic feedstocks

    公开(公告)号:US11193144B2

    公开(公告)日:2021-12-07

    申请号:US16552622

    申请日:2019-08-27

    申请人: IOGEN CORPORATION

    发明人: Patrick J. Foody

    摘要: The present invention provides a process for producing one or more products for use as a transportation or heating fuel. In various embodiments the process comprises treating a cellulosic feedstock in one or more processing steps that release extractives from the feedstock. A solids-liquid separation is subsequently conducted on the process stream comprising the extractives and solids. An aqueous stream comprising one or more of the extractives may be fed to an anaerobic digester to produce crude biogas from which one or more impurities may optionally be removed. In various embodiments the process further comprises providing a solids stream to a thermal process. A product produced or derived from the thermal process may displace a product made from fossil fuel. One or more products obtained or derived from at least one of the foregoing process steps are provided for use as a transportation or heating fuel. In various embodiments the process enables advantaged fuel credit generation.