METHOD FOR PRODUCTION OF AVIATION FUEL

    公开(公告)号:US20210395622A1

    公开(公告)日:2021-12-23

    申请号:US17287809

    申请日:2019-10-23

    摘要: A process plant and a process for production of a hydrocarbon suitable for use as jet fuel from a feedstock being a renewable feedstock or an oxygenate feedstock, including combining the renewable feedstock with an amount of a hydrocracked intermediate product, directing it to contact a material catalytically active in hydrodeoxygenation under hydrodeoxygenation conditions to provide a hydrodeoxygenated intermediate product, fractionating the hydrodeoxygenated intermediate product in at least two fractions including a first fraction of which at least 90% boils below a defined boiling point and a second fraction of which at least 90% boils above the defined boiling point, directing at least an amount of the second fraction to contact a material catalytically active in hydrocracking under hydrocracking conditions to provide the hydrocracked intermediate product, the process being suited for efficiently converting the upper-boiling point of an oxygenate feedstock such as a renewable feedstocks to a lower boiling product.

    PROCESS FOR THE PREPARATION OF METHANOL

    公开(公告)号:US20210363079A1

    公开(公告)日:2021-11-25

    申请号:US17269607

    申请日:2019-08-28

    摘要: Process for the preparation of a methanol product comprising the steps of a) providing a first process stream consisting essentially of carbon dioxide; b) providing a second process stream consisting of hydrogen by electrolyzing water in an electrolysis unit; c) mixing the first and second process in amount to obtain a methanol synthesis gas with a mole ratio of H2 and CO2 of between 2.5 and 3.5; d) catalytic converting the methanol synthesis gas into raw methanol in at least one methanol reactor; e) purifying the raw methanol in a distillation unit; and recovering waste heat generated in the electrolysis unit in step (b) by transferring the waste heat to a circulating heat transfer medium by indirect heat exchange with the waste heat and by indirect heat exchange of the heated heat transfer medium with steam used for the distillation of the raw methanol, wherein the heated transfer medium is compressed upstream the indirect heat exchange with steam.

    A PROCESS FOR START-UP OF THE HYDRODESULFURIZATION SECTION

    公开(公告)号:US20210324283A1

    公开(公告)日:2021-10-21

    申请号:US17054988

    申请日:2019-06-24

    发明人: Per Juul DAHL

    IPC分类号: C10L3/10 C01B3/34

    摘要: In a process for the start-up of a hydrodesulfurization section, comprising the steps of providing a natural gas feed, passing the natural gas feed through the waste heat section of a reformer, thereby heating the natural gas feed, and passing the heated natural gas feed through a hydrodesulfurization section, thereby heating the hydrodesulfurization section while producing a desulfurized natural gas stream, a part of the desulfurized natural gas stream is provided as fuel for the reformer, while the remainder of the desulfurized natural gas is recycled to at least one point upstream the waste heat section.

    PROCESS FOR DESULFURIZATION OF HYDROCARBONS

    公开(公告)号:US20210238488A1

    公开(公告)日:2021-08-05

    申请号:US17054566

    申请日:2019-05-28

    摘要: 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 hydrodesulfurization 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 wherein the gas to oil ratio and the pressure are configured for the selectivity slope, (% HDS−% OSAT)/(% OSAT*(100−% HDS)), to be above 0.55, and to provide a lower octane loss at all severities above 60% HDS, compared to compared to all prior reported processes with similar conversion of organic sulfur with a lower gas to oil ratio, as measured by the selectivity slope.

    HYDROGEN PRODUCTION BY STEAM METHANE REFORMING

    公开(公告)号:US20210238035A1

    公开(公告)日:2021-08-05

    申请号:US17049040

    申请日:2019-05-15

    摘要: A hydrogen plant for producing hydrogen, including: a reforming reactor system including a first catalyst bed including an electrically conductive material and a catalytically active material, a heat insulation layer between the first catalyst bed and the pressure shell, and at least two conductors electrically connected to the electrically conductive material and to an electrical power supply placed outside the pressure shell, wherein the electrical power supply is dimensioned to heat at least part of the first catalyst bed to a temperature of at least 500° C. by passing an electrical current through the electrically conductive material, where the pressure shell has a design pressure of between 5 and 200 bar; a water gas shift unit downstream the reforming reactor system; and a gas separation unit downstream the water gas shift unit. A process for producing hydrogen from a feed gas including hydrocarbons.

    Carbon Monoxide Production Process Optimized by SOEC

    公开(公告)号:US20210179436A1

    公开(公告)日:2021-06-17

    申请号:US16076194

    申请日:2017-02-20

    发明人: Henrik C.O. Wene

    摘要: The invention concerns a process for producing carbon mon-oxide (CO) from a feed stream comprising carbon dioxide (CO2) and natural gas and/or naphtha the process comprising a syngas generation step, a CO2 removal step and a CO purification step and the process further comprises an SOEC unit which produces CO from a CO2 stream, the process is especially suited for increasing the capacity of existing known CO production plants.

    STEAM REFORMING HEATED BY RESISTANCE HEATING

    公开(公告)号:US20210171344A1

    公开(公告)日:2021-06-10

    申请号:US17046475

    申请日:2019-05-15

    摘要: A reactor system for carrying out steam reforming of a feed gas comprising hydrocarbons, including: a structured catalyst arranged for catalyzing steam reforming of a feed gas including hydrocarbons, the structured catalyst including a macroscopic structure of electrically conductive material, the macroscopic structure supporting a ceramic coating, wherein the ceramic coating supports a catalytically active material; a pressure shell housing the structured catalyst; heat insulation layer between the structured catalyst and the pressure shell; at least two conductors electrically connected to the macroscopic structure and to an electrical power supply placed outside the pressure shell, wherein the electrical power supply is dimensioned to heat at least part of the structured catalyst to a temperature of at least 500° C. by passing an electrical current through the macroscopic structure. Also, a process for steam reforming of a feed gas comprising hydrocarbons.