PROCESS AND PLANT FOR CONVERSION OF OXYGENATES

    公开(公告)号:US20250084315A1

    公开(公告)日:2025-03-13

    申请号:US18727130

    申请日:2022-12-22

    Applicant: Topsoe A/S

    Abstract: A process for producing a C3 olefin product stream and a hydrocarbon stream comprising hydrocarbons boiling in the jet fuel range, the process comprising: passing a feedstock stream comprising oxygenates over a catalyst active in the conversion of oxygenates for producing a first olefin stream; conducting the first olefin stream to a first separation step and withdrawing thereof a liquid hydrocarbon fraction comprising at least 50 wt % of the C3-olefins contained in the first olefin stream; conducting the liquid hydrocarbon fraction to a fractionation step and separating therefrom said C3 olefin product stream and the olefin product stream; and converting the olefin product stream into the hydrocarbon stream comprising hydrocarbons boiling in the jet fuel range, particularly sustainable aviation fuel (SAF), by subsequent oligomerization and hydrogenation. The invention provides also a plant for conducting the process.

    Process and plant for improving gasoline yield and octane number

    公开(公告)号:US20240182794A1

    公开(公告)日:2024-06-06

    申请号:US18286201

    申请日:2022-04-20

    Applicant: Topsoe A/S

    Abstract: Process and plant for producing a gasoline product from an oxygenate feed stream comprising the steps of: conducting the oxygenate feed stream to an oxygenate-to-gasoline reactor, suitably a methanol-to-gasoline (MTG) reactor, under the presence of a fixed bed of catalyst active for converting oxygenates in the oxygenate feed stream to a raw gasoline stream comprising C3-C4 paraffins and C5+ hydrocarbons; separating from the raw gasoline stream a gasoline product stream comprising the C5+ hydrocarbons and a stream comprising C3-C4 paraffins; conducting the entire stream comprising C3-C4 paraffins or a portion thereof to an upgrading reactor under the presence of a catalyst active for converting the C3-C4 paraffins into an aromatic stream such as an aromatic stream comprising benzene, toluene and xylene (BTX); and combining the entire aromatic stream or a portion thereof with the oxygenate feed stream.

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