Integrated process for the manufacture of renewable diesel

    公开(公告)号:US11851620B2

    公开(公告)日:2023-12-26

    申请号:US17930479

    申请日:2022-09-08

    CPC classification number: C10G45/02 C10G2300/1014 C10G2400/04

    Abstract: Methods and systems are provided for producing renewable diesel. Disclosed herein is an example method of method for integration of product separation in renewable diesel production, including: stripping a hydrotreated effluent stream comprising hydrotreated biofeedstock to remove isomerization contaminants and form at least an isomerization feed stream and a first gas stream; contacting an isomerization effluent with the first gas stream such that the isomerization effluent adsorbs at least C4+ hydrocarbons from the first gas stream; and stripping at least a portion of an isomerization effluent in an integrated stripper while separated from the stripping the hydrocarbon stream by a dividing wall to remove hydrocarbons having 10 carbons or less and form at least a product stream and a second gas stream, wherein the product stream comprises renewable diesel.

    Mixed Aromatic Amine Monomers And Polymers Thereof

    公开(公告)号:US20230374214A1

    公开(公告)日:2023-11-23

    申请号:US18030030

    申请日:2021-10-07

    CPC classification number: C08G69/00

    Abstract: Processes and systems for producing isomeric mixtures of aromatic amine monomers from aromatic feeds. An example process for producing isomeric mixtures of aromatic amine monomers from aromatic feeds may include nitrating at least a portion of an aromatic feed to produce a mixture of nitrated aromatic compounds. The example process may further include hydrogenating at least a portion of the nitrated aromatic compounds to produce an isomeric mixture of aromatic amine monomers. The example process may further include processing the isomeric mixture of aromatic amine monomers to form a product selected from an aromatic compound with a different functional group than the aromatic amine monomers, a polymerized product, or a reaction product of the aromatic amine monomers and H2S.

    Method of assigning an octane number to a fuel

    公开(公告)号:US11821381B2

    公开(公告)日:2023-11-21

    申请号:US17148750

    申请日:2021-01-14

    CPC classification number: F02D41/1498 F02D19/0649 F02D35/027

    Abstract: A method of assigning an octane number to a sample fuel based on the knock intensities obtained from a plurality of reference fuels each having a different assigned octane number while operating an engine at an established compression ratio. The knock intensities obtained from the plurality of reference fuels are plotted relative to the assigned octane numbers of the fuels. A line is fit to the plotted knock intensities. The octane number for a sample fuel is assigned based on the knock intensity obtained for the sample fuel, the knock intensity obtained from a prototype fuel having an assigned octane number, and the fitted line. In embodiments, an R squared value is obtained for the fitted line and compared with a minimum acceptable R squared value and the fitted line is validated if the R squared value is at least the minimum acceptable R squared value.

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