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    Process for the preparation of hydrogen
    53.
    发明授权
    Process for the preparation of hydrogen 有权

    公开(公告)号：US11161738B2

    公开(公告)日：2021-11-02

    申请号：US16331320

    申请日：2017-09-07

    Applicant: SHELL OIL COMPANY

    Inventor： Arjan Allert Jonckers

    IPC: C01B3/40 ,  C01B3/48 ,  C01B3/56

    Abstract: Process for the preparation of hydrogen by reacting a feed gas comprising methane and carbon monoxide with steam in the presence of a steam reforming catalyst at a pressure of at least 15 bara in the heated zone of a steam reformer to obtain a raw hydrogen containing product stream, wherein (a) the feed gas is mixed with the steam before entering the steam reformer resulting in a reaction mixture of the feed gas and steam having a temperature below 540° C.; and (b) the reaction mixture obtained in step (a) is fed into the heated zone of the steam reformer where it is first contacted with an inert material before it is contacted with the steam reforming catalyst.

    Process for preparing a base oil having a reduced cloud point
    56.
    发明授权
    Process for preparing a base oil having a reduced cloud point 有权

    公开(公告)号：US11142705B2

    公开(公告)日：2021-10-12

    申请号：US16064046

    申请日：2016-12-23

    Applicant: SHELL OIL COMPANY

    Inventor： Diederik De Jonge ,  Edward Julius Creyghton ,  Eduard Philip Kieffer ,  Duurt Renkema

    IPC: C10G69/02 ,  C10M171/02 ,  C10G65/04 ,  C10G65/12 ,  C10M107/02 ,  C10M105/02 ,  C10N20/02 ,  C10N20/00 ,  C10N30/02 ,  C10N70/00

    Abstract: The present invention relates to a process for preparing a residual base oil from a hydrocarbon feed which is derived from a Fischer-Tropsch process, the process comprises the steps of: (a) providing a hydrocarbon feed which is derived from a Fischer-Tropsch process; (b) subjecting the hydrocarbon feed of step (a) to a hydrocracking/hydroisomerisation step to obtain an at least partially isomerised product; (c) separating at least part of the at least partially isomerised product as obtained in step (b) into one or more lower boiling fractions and a hydrowax residue fraction; (d) catalytic dewaxing of the hydrowax residue fraction of step (c) to obtain a highly isomerised product; (e) separating the highly isomerised product of step (d) into one or more light fractions and a isomerised residual fraction; (f) mixing of the isomerised residual fraction of step (e) with a diluent to obtain a diluted isomerised residual fraction; (g) cooling the diluted isomerised residual fraction of step (f) to a temperature between 0° C. and −60° C.; (i) subjecting the mixture of step (g) to a centrifuging step at a temperature between 0° C. and −60° C. to isolate the wax from the diluted isomerised residual fraction; (j) separating the diluent from the diluted isomerised residual fraction to obtain a residual base oil.

    Method for structure model building
    59.
    发明授权
    Method for structure model building 有权

    公开(公告)号：US11119231B2

    公开(公告)日：2021-09-14

    申请号：US16743020

    申请日：2020-01-15

    Applicant: SHELL OIL COMPANY

    Inventor： Dian He

    IPC: G01V1/28 ,  G01V1/00

    Abstract: A method for generating a plurality of structural models for a geological setting involves identifying a poorly imaged portion of an input seismic data set. A set of geologically valid kinematic base models are selected to define a kinematic evolution scenario. A correspond set of kinematic base model parameters is defined for the models. A structural model is generated for both a well-imaged portion of the seismic data and the poorly imaged portion. A misfit between the input horizons and the and the modeled horizons is calculated and steps are repeated for a predetermined number of iterations to produce a best-fit model. The steps are repeated then to produce a plurality of best-fit models of geologically plausible solutions for the geological setting. The method is particularly suitable for complex geological settings.

    Piping system
    60.
    发明授权
    Piping system 有权

    公开(公告)号：US11118714B2

    公开(公告)日：2021-09-14

    申请号：US16322348

    申请日：2017-07-26

    Applicant: SHELL OIL COMPANY

    Inventor： Raghunath Gopal Menon ,  Juan Pablo Pontaza

    IPC: F15D1/02 ,  F16L55/04 ,  F16L41/08 ,  F16L55/027

    Abstract: The present invention provides a piping system (1) at least comprising a main pipeline (2) and a side branch pipeline (3), wherein the side branch pipeline (3) meets the main pipeline (2) at a junction (4), wherein the side branch pipeline (3) is provided with a perforated plate (5) having a plurality of perforations (6), wherein the perforated plate (5) has a downstream half (5B) and an upstream half (5A) (relative to the flow direction in the main pipeline (2)), wherein the downstream half (5B) has less open area than the upstream half (5A), and wherein the perforated plate (5) is provided with a protrusion (8), at the side of the perforated plate (5) facing away from the junction (4).

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