REMOVING IMPURITIES IN A PROCESS FOR PRODUCING HYDROCARBON PRODUCTS

    公开(公告)号:US20230357652A1

    公开(公告)日:2023-11-09

    申请号:US18040320

    申请日:2021-08-13

    Applicant: Topsoe A/S

    Inventor: Facundo SALA

    Abstract: Process for producing a hydrocarbon product, said process comprising: i) passing a feedstock originating from a renewable source and/or from a fossil source through a hydroprocessing step for producing a main hydrotreated stream; said hydroprocessing step comprising: passing the feedstock through one or more catalytic hydrotreating units under the addition of hydrogen for producing a first hydrotreated stream; passing the first hydrotreated stream to a first separation step comprising the use of a separation unit for particularly removing the impurities H2S, CO, CO2 and H2O; withdrawing from said first separation step an overhead stream and separating an overhead hydrocarbon liquid stream thereof which is passed as a reflux stream to said first separation unit; withdrawing from said first separation step a bottom stream and passing at least a portion of said bottom stream to a dewaxing step comprising the use of one or more catalytic hydrotreating units under the addition of hydrogen for producing said main hydrotreated stream; and ii) passing the main hydrotreated stream to a second separation step for producing said hydrocarbon product.

    Cost Effective Deoxygenation Process With Gas Recycle

    公开(公告)号:US20230087845A1

    公开(公告)日:2023-03-23

    申请号:US17904881

    申请日:2021-03-10

    Applicant: TOPSOE A/S

    Inventor: Ole Frej ALKILDE

    Abstract: The present disclosure relate to a process plant and a method for production of a hydrocarbon mixture from a feedstock stream comprising oxygenates and a make-up hydrogen gas stream, involving directing a feed stream, comprising the feedstock stream comprising oxygenates, the make-up hydrogen gas stream and a hydrogen rich gas stream, to contact a material catalytically active in deoxygenation under active deoxygenation conditions and withdrawing a deoxygenated product stream, characterized in the hydrogen rich gas stream comprising at least 70 vol % hydrogen, at least 0.1 vol % carbon oxides and at least 50 ppmvol H2S, with the associated benefit that such a method, where carbon oxides are allowed to be present may be realized without requiring a step of purifying said recycled hydrogen rich gas stream, e.g. by use of an amine wash.

    CO-PRODUCTION OF METHANOL, AMMONIA AND UREA

    公开(公告)号:US20230073089A1

    公开(公告)日:2023-03-09

    申请号:US17800151

    申请日:2021-02-24

    Applicant: Topsoe A/S

    Abstract: Sequential and once-through (single pass) process for the co-production of methanol and ammonia and conversion of at least a part of ammonia to urea by reaction of the ammonia with carbon dioxide collected from a primary reformer flue gas together with carbon dioxide separated from reformed gas in a carbon dioxide removal stage.

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