VINYL ACETATE HAVING A NATURAL ABUNDANCE OF CARBON-14 FROM NON-FOSSIL RESOURCES

    公开(公告)号:EP4553060A1

    公开(公告)日:2025-05-14

    申请号:EP23208844.3

    申请日:2023-11-09

    Applicant: BASF SE

    Abstract: Process for making vinyl acetate from biomass, comprising the step of reacting (I) ethylene with (II) acetic acid to give vinyl acetate, wherein
    (I) ethylene is provided, starting from biomass, by a process comprising
    (a) producing carbon oxides from biomass, or capturing carbon dioxide from ambient air, optionally followed by electrochemical reduction of carbon dioxide to carbon monoxide;
    (b) electrochemical reduction of carbon oxides from step (a) to give ethylene; and/or
    (c1) reacting hydrogen and carbon oxides from step (a) in the presence of a catalyst to give methanol,
    (c2) reacting methanol from step (c1) to form ethylene; and/or
    (d1) producing ethanol from biomass by fermentation,
    (d2) dehydrogenating ethanol from step (d1) to give ethylene; and/or
    (e) directly producing ethylene from biomass by fermentation;

    (II) acetic acid is provided, starting from biomass or carbon dioxide captured from ambient air, by a process comprising
    (f) reacting methanol from step (c1) with carbon monoxide to give acetic acid; and/or
    (g1) reacting part of the ethylene from steps (b), (c2), (d2) or (e) with oxygen and water to give acetaldehyde, and
    (g2) reacting acetaldehyde from step (g1) with oxygen to give acetic acid; and/or
    (h) oxidative fermentation of ethanol from step (d1) to give acetic acid; and/or
    (i) producing acetic acid from biomass by biomass pyrolysis.

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