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    • 10. 发明申请
    • PRODUCTION OF LUBRICANT BASE STOCKS WITH CONTROLLED AROMATIC CONTENTS
    • 生产具有控制的芳香含量的润滑剂基础库存
    • WO2016081305A1
    • 2016-05-26
    • PCT/US2015/060604
    • 2015-11-13
    • EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    • LYON, Kristen, S.JOSECK, Eric, D.SCHLEICHER, Gary, P.DOUGHERTY, Richard, C.HORTON, Angela
    • C10G45/02C10G45/58C10G47/00C10G65/04C10G65/12C10G67/04
    • C10G69/02C10G45/02C10G45/58C10G47/00C10G65/04C10G65/12C10G67/04C10G2400/10C10M101/00C10M101/02C10M2203/1006C10M2203/1045C10M2205/223C10N2220/022C10N2230/43
    • 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.
    • 提供了用于生产具有受控或一致的芳烃含量的II类和III类基础油料的方法。 可以在最终催化处理步骤之后但在分馏之前以最小的量将富含芳烃的基础油料如I类基础油料或烷基化芳族基础油料加入催化处理的原料中。 在用于形成润滑剂基础产品的加工运行开始时,可​​以在最终催化处理阶段之后但在分馏之前将约0.25重量%至约1.25重量%的第I族原料加入催化加工的进料中,以形成 II类和/或III类基础油。 在加工过程中,加入的I类原料的量可以与催化剂失活引起的芳族化合物的增加大致相当。 这可以允许在处理运行过程中产生含有至少约一个阈值(最小)芳烃含量的催化加工的润滑剂基础原料产品。 或者,这可以允许在处理运行过程中生成具有一致的芳族化合物含量的催化加工的润滑剂基础原料产品。