METHOD FOR FRACTIONATION OF HYDROCARBONS

    公开(公告)号:US20210324275A1

    公开(公告)日:2021-10-21

    申请号:US17287549

    申请日:2019-10-22

    Inventor: Stefan ANDERSEN

    Abstract: A process for separation of a liquid phase from a gas phase and a process for production of a hydrocarbon product employing such a separation as well as a fractionation section and a hydrocracker section for carrying out such processes. The separation process includes: directing a feed for separation to a feed inlet of a means of separation; directing a stripping medium to a stripping medium inlet of the means of separation; withdrawing a liquid product stream from a means of separation; withdrawing a gaseous fraction comprising the stripping medium from the means of separation; directing the stripping medium fraction or the gaseous fraction as a recycled stripping medium; pressurizing at least an amount of the recycled stripping medium and directing it as the stripping medium, wherein the stripping medium comprises at least 80% vol/vol % of gases from the group comprising N2, H2, He, Ar, Ne and CO2.

    PROCESS FOR DESULFURIZATION OF HYDROCARBONS

    公开(公告)号:US20210309923A1

    公开(公告)日:2021-10-07

    申请号:US17054544

    申请日:2019-05-28

    Abstract: A process for hydrodesulfurizing an olefinic naphtha feedstock while retaining a substantial amount of the olefins, which feedstock has a T95 boiling point below 250° C. and contains at least 50 ppmw of organically bound sulfur and from 5% to 60% olefins, the process including hydrodesulfurizing the feedstock in a sulfur removal stage in the presence of a gas including hydrogen and a hydrodesulfu-rization catalyst, at hydrodesulfurization reaction conditions, to convert at least 60% of the organically bound sulfur to hydrogen sulfide and to produce a desulfurized product stream, with the associated benefit of such a process providing a lower octane loss at all severities above 60% HDS, compared to a process with similar conversion of organic sulfur with a lower gas to oil ratio, as measured by the selectivity slope, while avoiding excessive increase of equipment size by limiting gas to oil ratio.

    Co-production of methanol, ammonia and urea

    公开(公告)号:US11130680B2

    公开(公告)日:2021-09-28

    申请号:US16467192

    申请日:2018-03-07

    Abstract: Process for the co-production of methanol and ammonia together with urea production from a hydrocarbon feed without venting to the atmosphere carbon dioxide captured from the methanol or ammonia synthesis gas and without using expensive air separation units and water gas shift. Carbon dioxide removal from flue gas from reforming section to convert partially or fully all ammonia into urea. Synergi of having methanol, ammonia and urea production to produce coating material for the urea production.

    GASIFICATION PROCESS EMPLOYING ACID GAS RECYCLE

    公开(公告)号:US20210284927A1

    公开(公告)日:2021-09-16

    申请号:US16323819

    申请日:2017-10-03

    Abstract: A method for converting a feedstock comprising solid hydrocarbons to a sweet synthesis gas, involving the steps a. gasifying said feedstock in the presence of steam, an oxygen rich gas and an amount of sour process gas to form a raw synthesis gas optionally comprising tar, b. optionally conditioning said raw synthesis gas to a sour shift feed gas, c. contacting said sour shift feed gas with a sulfided material catalytically active in the water gas shift process for providing a sour hydrogen enriched synthesis gas, d. separating H2S and CO2 from said sour hydrogen enriched synthesis gas, for providing said sour recycle gas and a sweet hydrogen enriched synthesis gas.

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