MONITORING OF HYDROPROCESSED FLUIDS BY OPTICAL SPECTROSCOPY

    公开(公告)号:US20210115344A1

    公开(公告)日:2021-04-22

    申请号:US17063065

    申请日:2020-10-05

    Abstract: Systems and methods are provided to allow for characterization of feeds, intermediate effluents, and/or products during lubricant base stock production. More generally, the systems and methods can allow for characterization of aromatics in various types of hydroprocessed intermediate effluents and/or products. In some aspects, the characterization can include measuring a fluorescence excitation-emission matrix spectrum for a sample, and then generating a representation of the spectrum by fitting the measured spectrum to a linear combination of spectra corresponding to compounds or compound classes. As the hydroprocessing process continues, additional measured spectra and comparing the fit quality of the representation to the subsequently measured spectra. When the fit quality falls below a threshold value, the loss in fit quality indicates a change in the number and/or distribution of aromatics in the sample. In other aspects, fluorescence excitation-emission spectroscopy can be used to characterize the amount of aromatics within a sample that correspond to one or more fluorescence compound classes. Based on this characterization, adjustments can be made to a process to reduce undesirable levels of aromatics, such as undesirable levels of polynuclear aromatics.

    Field enhanced separation of hydrocarbon fractions
    3.
    发明授权
    Field enhanced separation of hydrocarbon fractions 有权
    现场加强烃馏分的分离

    公开(公告)号:US09359565B2

    公开(公告)日:2016-06-07

    申请号:US14132206

    申请日:2013-12-18

    CPC classification number: C10G65/12 C10G67/02

    Abstract: Systems and methods are provided for using field enhanced separations to produce multiple fractions from a petroleum input. A liquid thermal diffusion and/or electric field separation is used to produce the fractions. The fractions can then be used to form multiple outputs that share a first feature while being different with regard to a second feature. For example, a first fraction from the plurality of fractions can have a desired value for a first property such as viscosity index. Two or more additional fractions from the plurality of fractions can then be blended together to make a blended fraction or output. The blended fraction can have a value for the first property that is substantially similar to the value for the first fraction. However, for a second property, the first fraction and the blended fraction can have distinct values. As a result, multiple output fractions can be formed that share a first feature but differ in a second feature.

    Abstract translation: 提供了系统和方法,用于使用场增强分离从石油输入产生多个馏分。 使用液体热扩散和/或电场分离来生产级分。 然后可以使用分数来形成共享第一特征的多个输出,同时关于第二特征不同。 例如,来自多个级分的第一级分可以具有用于第一性质(例如粘度指数)的期望值。 然后将来自多个馏分的两个或更多个附加馏分混合在一起以制备混合部分或输出。 混合分数可以具有基本上类似于第一级分的值的第一性质的值。 然而,对于第二特性,第一级分和混合级分可以具有不同的值。 结果,可以形成共享第一特征但在第二特征中不同的多个输出分数。

    Monitoring of hydroprocessed fluids by optical spectroscopy

    公开(公告)号:US11198825B2

    公开(公告)日:2021-12-14

    申请号:US17063065

    申请日:2020-10-05

    Abstract: Systems and methods are provided to allow for characterization of feeds, intermediate effluents, and/or products during lubricant base stock production. More generally, the systems and methods can allow for characterization of aromatics in various types of hydroprocessed intermediate effluents and/or products. In some aspects, the characterization can include measuring a fluorescence excitation-emission matrix spectrum for a sample, and then generating a representation of the spectrum by fitting the measured spectrum to a linear combination of spectra corresponding to compounds or compound classes. As the hydroprocessing process continues, additional measured spectra and comparing the fit quality of the representation to the subsequently measured spectra. When the fit quality falls below a threshold value, the loss in fit quality indicates a change in the number and/or distribution of aromatics in the sample. In other aspects, fluorescence excitation-emission spectroscopy can be used to characterize the amount of aromatics within a sample that correspond to one or more fluorescence compound classes. Based on this characterization, adjustments can be made to a process to reduce undesirable levels of aromatics, such as undesirable levels of polynuclear aromatics.

    FIELD ENHANCED SEPARATION OF HYDROCARBON FRACTIONS
    6.
    发明申请
    FIELD ENHANCED SEPARATION OF HYDROCARBON FRACTIONS 审中-公开
    油气分离场的现场加强分离

    公开(公告)号:US20140197075A1

    公开(公告)日:2014-07-17

    申请号:US14132228

    申请日:2013-12-18

    Abstract: Systems and methods are provided for using field enhanced separations to produce multiple fractions from a petroleum input. A liquid thermal diffusion and/or electric field separation is used to produce the fractions. The fractions can then be used to form multiple outputs that share a first feature while being different with regard to a second feature. For example, a first fraction from the plurality of fractions can have a desired value for a first property such as viscosity index. Two or more additional fractions from the plurality of fractions can then be blended together to make a blended fraction or output. The blended fraction can have a value for the first property that is substantially similar to the value for the first fraction. However, for a second property, the first fraction and the blended fraction can have distinct values. As a result, multiple output fractions can be formed that share a first feature but differ in a second feature.

    Abstract translation: 提供了系统和方法,用于使用场增强分离从石油输入产生多个馏分。 使用液体热扩散和/或电场分离来生产级分。 然后可以使用分数来形成共享第一特征的多个输出,同时关于第二特征不同。 例如,来自多个级分的第一级分可以具有用于第一性质(例如粘度指数)的期望值。 然后将来自多个馏分的两个或更多个附加馏分混合在一起以制备混合部分或输出。 混合分数可以具有基本上类似于第一级分的值的第一性质的值。 然而,对于第二特性,第一级分和混合级分可以具有不同的值。 结果,可以形成共享第一特征但在第二特征中不同的多个输出分数。

Patent Agency Ranking