HIGHLY STRUCTURED, HIGH VINYLIDENE PROPYLENE OLIGOMER AND METHOD OF MAKING

    公开(公告)号:US20240239726A1

    公开(公告)日:2024-07-18

    申请号:US18576716

    申请日:2022-05-16

    CPC classification number: C07C2/34 C07C11/06 C07C2531/14 C07C2531/22

    Abstract: A method for making a propylene oligomer having a high vinylidene content and a high degree of structural regularity and the propylene oligomer made therefrom. The method of making the propylene oligomer comprises contacting an unbridged metallocene complex with a propylene composition in the presence of a modified methyl aluminum oxide activator compound under suitable oligomerization conditions. The use of the combination of a modified methyl aluminum oxide activator compound with an unbridged metallocene complex has been found to provide increased vinylidene group content and reduced hydrogenated propylene oligomer content.

    MOVING BED LIGNOCELLULOSIC BIOMASS CONVERSION WITH FLUID BED CATALYST REGENERATION

    公开(公告)号:US20240157347A1

    公开(公告)日:2024-05-16

    申请号:US18054281

    申请日:2022-11-10

    Abstract: A process is provided for producing reduced acid lignocellulosic-derived bio-oil. treating a lignocellulosic biomass feedstock in a moving bed reactor with a metal oxide catalyst on an oxide support under treating conditions to produce a treated stream; directing spent metal oxide catalyst from the moving bed reactor to a fluidized bed regenerator, the spent metal oxide catalyst resulting from treating the lignocellulosic biomass feedstock with the metal oxide catalyst; regenerating the spent metal oxide catalyst in the fluidized bed regenerator by removing coke from the spent metal oxide catalyst in a combustion process that regenerates the spent metal oxide catalyst into the metal oxide catalyst; and returning to the moving bed reactor the metal oxide catalyst that has been regenerated in the fluidized bed regenerator. The obtained bio-oil is particularly suitable as a renewable feedstock for hydroprocessing in biofuel manufacture.

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