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    PRODUCTION OF LUBRICANT BASE STOCKS WITH CONTROLLED AROMATIC CONTENTS
    4.
    发明公开
    PRODUCTION OF LUBRICANT BASE STOCKS WITH CONTROLLED AROMATIC CONTENTS 审中-公开
    有控制芳烃含量的润滑油基础油的生产

    公开(公告)号：EP3221428A1

    公开(公告)日：2017-09-27

    申请号：EP15802271.5

    申请日：2015-11-13

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： LYON, Kristen S. ,  JOSECK, Eric D. ,  SCHLEICHER, Gary P. ,  DOUGHERTY, Richard C. ,  HORTON, Angela

    IPC: C10G45/02 ,  C10G45/58 ,  C10G47/00 ,  C10G65/04 ,  C10G65/12 ,  C10G67/04

    CPC classification number: C10G69/02 ,  C10G45/02 ,  C10G45/58 ,  C10G47/00 ,  C10G65/04 ,  C10G65/12 ,  C10G67/04 ,  C10G2400/10 ,  C10M101/00 ,  C10M101/02 ,  C10M2203/1006 ,  C10M2203/1045 ,  C10M2205/223 ,  C10N2220/022 ,  C10N2230/43

    Abstract: Methods are provided for producing Group II and Group III base stocks with a controlled or consistent aromatics content. An aromatics-rich base stock, such as a Group I base stock or an alkylated aromatic base stock, can be added to the catalytically treated base stock in a minimal amount after the final catalytic treatment step but prior to fractionation. At the beginning of a processing run for forming lubricant base stock products, about 0.25 wt % to about 1.25 wt % of the Group I base stock can be added to a catalytically processed feed after the final catalytic processing stage but prior to fractionation to form the Group II and/or Group III base stock. During the course of the processing run, the amount of Group I base stock added can be reduced roughly in correspondence with the increase in aromatics caused by catalyst deactivation. This can allow a catalytically processed lubricant base stock product to be generated that contains at least about a threshold (minimum) aromatics content during the course of a processing run. Alternatively, this can allow a catalytically processed lubricant base stock product to be generated that has consistent aromatics content during the course of the processing run.

    Abstract translation: 提供了用于生产具有受控或一致芳烃含量的II类和III类基础油料的方法。 在最终催化处理步骤之后但在分馏之前，可以以最小量将富含芳族化合物的基础油料（例如第I组基础油料或烷基化芳族基础油料）加入催化处理的基础油料中。 在形成润滑剂基础油产品的加工过程开始时，可​​以在最终催化加工阶段之后但在分馏之前将约0.25wt％ - 约1.25wt％的I类基础油料加入催化加工的加料中以形成 第II组和/或第III组基础原料。 在加工过程中，添加的I类基础原料的量可以大致减少，与由催化剂失活导致的芳烃增加相对应。 这可以允许催化加工的润滑剂基础油产品在加工过程中产生至少包含大约阈值（最小）的芳烃含量。 或者，这可以允许催化加工的润滑剂基础油产品在加工过程中产生具有一致的芳族化合物含量。

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