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    PROCESS FOR PREPARING A BASE OIL HAVING A REDUCED CLOUD POINT
    1.
    发明申请
    PROCESS FOR PREPARING A BASE OIL HAVING A REDUCED CLOUD POINT 审中-公开

    公开(公告)号：US20190002773A1

    公开(公告)日：2019-01-03

    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 ,  C10M105/02 ,  C10M171/02

    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.

    PROCESS FOR THE CONVERSION OF A PARAFFINIC FEEDSTOCK
    2.
    发明申请
    PROCESS FOR THE CONVERSION OF A PARAFFINIC FEEDSTOCK 有权
    分配进料转化的过程

    公开(公告)号：US20160251583A1

    公开(公告)日：2016-09-01

    申请号：US15032837

    申请日：2014-10-30

    Applicant: SHELL OIL COMPANY

    Inventor： Andries Hendrik JANSSEN ,  Eduard Philip KIEFFER ,  Olav SAMMELIUS

    IPC: C10G69/02 ,  C10G67/02

    CPC classification number: C10G69/02 ,  C10G2/30 ,  C10G45/64 ,  C10G65/12 ,  C10G67/02 ,  C10G2300/1022

    Abstract: The invention relates to a process for the conversion of a paraffinic feedstock that comprises at least 50 wt % of compounds boiling above 370° C. and which has a paraffin content of at least 60 wt %, an aromatics content of below 1 wt %, a naphthenic content below 2 wt %, a nitrogen content of below 0.1 wt %, and a sulphur content of below 0.1 wt %, the process comprising: a) subjecting the paraffinic feedstock to a hydroprocessing step to obtain an at least partially isomerised feedstock; b) separating the at least partially isomerised feedstock into one or more middle distillate fractions and a first residual fraction, wherein step a) is carried out by contacting the paraffinic feedstock with a first catalyst having hydrocracking and hydroisomerising activity and then with a second catalyst having hydrocracking and hydroisomerising activity, wherein the second catalyst is more active in hydroisomerisation and less active in hydrocracking than the first catalyst.

    Abstract translation: 本发明涉及一种用于转化石蜡原料的方法，该方法包括至少50重量％的沸点高于370℃并且具有至少60重量％的链烷烃含量，低于1重量％的芳烃含量的化合物， 环烷含量低于2重量％，氮含量低于0.1重量％，硫含量低于0.1重量％，该方法包括：a）使石蜡原料进行加氢处理步骤以获得至少部分异构化的原料; b）将至少部分异构化的原料分离成一个或多个中间馏分馏分和第一残余馏分，其中步骤a）通过使石蜡原料与具有加氢裂化和加氢异构化活性的第一催化剂接触，然后与具有 加氢裂化和加氢异构化活性，其中第二催化剂在加氢异构化中更有活性并且在加氢裂化中比第一催化剂活性较低。

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