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    Advanced combustion fuel compositions
    13.
    发明授权
    Advanced combustion fuel compositions 有权

    公开(公告)号：US10760019B2

    公开(公告)日：2020-09-01

    申请号：US15831639

    申请日：2017-12-05

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Scott K. Berkhous ,  Krystal B. Wrigley ,  Matthew I. Watkins

    IPC: C10L1/06 ,  C10L1/04 ,  C10L1/08

    Abstract: Fuel compositions for advanced combustion engines that include a naphtha boiling range portion are provided, where the fuel compositions can have a reduced ignition delay and/or an improved derived cetane number. The improved combustion properties can be achieved by adding a portion of a light naphtha (boiling range) composition to a heavy naphtha boiling range composition. The addition of up to about 10 vol % of a light naphtha composition to a heavy naphtha composition can result in a mixture having a reduced ignition delay relative to the heavy naphtha composition.

    FUEL ADDITIVES WITH LOW NOx EMISSIONS
    17.
    发明申请
    FUEL ADDITIVES WITH LOW NOx EMISSIONS 有权

    公开(公告)号：US20210054298A1

    公开(公告)日：2021-02-25

    申请号：US16993850

    申请日：2020-08-14

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Logan P. Renninger ,  Scott K. Berkhous ,  Donald J. Mattran ,  Geert W. Steenbeke ,  Dongil Kang ,  Kenneth C. H. Kar

    IPC: C10L1/23 ,  C10L1/185 ,  C10L1/182 ,  C10L10/12 ,  C10L10/10 ,  C10L10/02 ,  C10L10/14

    Abstract: This disclosure relates to compositions and methods of making an additized fuel composition comprising a base fuel composition and a randomly branched nitrate composition. The randomly branched nitrate composition includes a plurality of primary nitrate molecules, each molecule therein having an empirical chemical formula of CnNO3, wherein Cn is a branched aliphatic moiety which may be the same or different for each molecule, n is an integer selected from the group consisting of 8, 9, 10, 11 and 12, at least one carbon atom in the branched aliphatic moiety being bound to three or more carbon atoms, a branching index ranging from 1.8 to 2.2, and greater than 80% of the branches in the aliphatic moiety being in other than the alpha position. The additized fuel composition may be diesel fuel composition or a gasoline fuel composition. Such randomly branched nitrate composition may be more stable, and thus safer to handle than 2-ethylhexylnitrate and may have a lower overall nitrogen content, leading to lower NOx emissions upon combustion in diesel and gasoline fuel compositions.

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