Production of lubricating oils
    1.
    发明授权
    Production of lubricating oils 失效
    生产润滑油

    公开(公告)号:US3923636A

    公开(公告)日:1975-12-02

    申请号:US47548574

    申请日:1974-06-03

    Applicant: TEXACO INC

    CPC classification number: C10G47/00 C10G2400/10

    Abstract: Lube oils of improved viscosity index are prepared by hydrocracking a heavy oil charge stock, separating the lube oil portion of the product into a light cut and a heavy cut, extracting aromatics from the heavy cut, combining the extracted aromatics with the light cut and hydrogenating the mixture. The products may be used separately or the hydrogenated mixture may be combined with the extracted heavy cut.

    Abstract translation: 改进的粘度指数的润滑油是通过加氢裂化重油电荷原料制备的,将产品的润滑油部分分成轻馏分和重馏分,从重馏分中萃取芳烃,将提取的芳族化合物与轻馏分和氢化 混合物。 产物可以单独使用,也可以将氢化混合物与提取的重馏分混合。

    Hydrogenation of a hydrocracked lubricating oil
    3.
    发明授权
    Hydrogenation of a hydrocracked lubricating oil 失效
    氢化润滑油的加氢

    公开(公告)号:US3870622A

    公开(公告)日:1975-03-11

    申请号:US37333273

    申请日:1973-06-25

    Applicant: TEXACO INC

    CPC classification number: C10G65/12 C10G2400/10

    Abstract: The viscosity index of a hydrocracked lubricating oil stock boiling in the range of about 600*-1100* F. is increased by fractionating the stock into a light fraction boiling from 600* F. to about 750* F. and a bottoms fraction; mildly hydrogenating the light fraction and subsequently reblending the hydrogenated light fraction with the unhydrogenated fraction. Low boiling cracked hydrocarbons may be removed from the reblended lubricating oil to adjust the initial boiling point temperature to a desired value.

    Abstract translation: 通过将原料分馏成沸腾至600°F至约750°F的轻馏分和塔底馏分,将沸点在约600°-1100°F范围内的加氢裂化润滑油原料的粘度指数提高。 轻轻地使轻馏分氢化,随后用未氢化的馏分使氢化轻馏分反应。 低沸点裂化烃可以从再润滑的润滑油中除去,以将初始沸点温度调节至所需值。

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