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    Ammonia process using advanced shift process
    1.
    发明授权
    Ammonia process using advanced shift process 有权

    公开(公告)号：US11124423B2

    公开(公告)日：2021-09-21

    申请号：US16481619

    申请日：2018-03-07

    申请人： Haldor Topsøe A/S

    发明人： Christian Henrik Speth ,  Per Juul Dahl ,  Annette E. Krøll Jensen ,  Niels Christian Schjødt ,  Marcus Symreng

    IPC分类号： C01C1/04 ,  C01B3/02 ,  B01D19/00 ,  B01J23/80 ,  C01B3/48 ,  C01B3/52 ,  C07C273/10

    摘要： A process for producing an ammonia synthesis gas, said process comprising the steps of: —Reforming a hydrocarbon feed in a reforming step thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O, —Shifting the synthesis gas in one in or more shift steps in series, —Optionally wash the synthesis gas leaving the shift section with water, —Sending the process condensate originating from cooling and washing the synthesis gas leaving the shift section to a process condensate stripper wherein the dissolved shift byproducts and dissolved gases are stripped out of the process condensate using steam resulting in a steam stream containing more than 99% of the dissolved methanol in process condensate. —Adding all or part of said steam stream from the process condensate stripper to the synthesis gas downstream the reforming step, prior to the last shift step, wherein —The steam/carbon ratio in the reforming step and the shift step is less than 2.6.

    AMMONIA PROCESS USING ADVANCED SHIFT PROCESS
    3.
    发明申请
    AMMONIA PROCESS USING ADVANCED SHIFT PROCESS 审中-公开

    公开(公告)号：US20190382277A1

    公开(公告)日：2019-12-19

    申请号：US16481619

    申请日：2018-03-07

    申请人： HALDOR TOPSØE A/S

    发明人： Christian Henrik Speth ,  Per Juul Dahl ,  Annette E. Krøll Jensen ,  Niels Christian Schjødt ,  Marcus Symreng

    IPC分类号： C01C1/04 ,  C01B3/02

    摘要： A process for producing an ammonia synthesis gas, said process comprising the steps of: —Reforming a hydrocarbon feed in a reforming step thereby obtaining a synthesis gas comprising CH4, CO, CO2, H2 and H2O, —Shifting the synthesis gas in one in or more shift steps in series, —Optionally wash the synthesis gas leaving the shift section with water, —Sending the process condensate originating from cooling and washing the synthesis gas leaving the shift section to a process condensate stripper wherein the dissolved shift byproducts and dissolved gases are stripped out of the process condensate using steam resulting in a steam stream containing more than 99% of the dissolved methanol in process condensate. —Adding all or part of said steam stream from the process condensate stripper to the synthesis gas downstream the reforming step, prior to the last shift step, wherein —The steam/carbon ratio in the reforming step and the shift step is less than 2.6.

    CONTROL OF INLET TEMPERATURE FOR CONVERSION STEP
    4.
    发明申请
    CONTROL OF INLET TEMPERATURE FOR CONVERSION STEP 审中-公开

    公开(公告)号：US20180299120A1

    公开(公告)日：2018-10-18

    申请号：US15767709

    申请日：2016-12-07

    申请人： Haldor Topsøe A/S

    发明人： Christian Henrik Speth ,  Emil Andreas Tjärnehov

    IPC分类号： F22B35/00

    摘要： The present relates to a method for controlling the inlet temperature Ti to a conversion process, said method comprising the steps of: Providing a feed for a conversion process; In a first temperature control step regulating the temperature of the feed in a waste heat boiler; In a second temperature control step injecting a water stream into the feed downstream the waste heat boiler in an amount and/or at a temperature to obtain the desired inlet temperature into the conversion process.

    Adiabatic axial flow converter
    8.
    发明授权
    Adiabatic axial flow converter 有权

    公开(公告)号：US11040321B2

    公开(公告)日：2021-06-22

    申请号：US16764655

    申请日：2018-12-19

    申请人： Haldor Topsøe A/S

    发明人： Christian Henrik Speth ,  Per Juul Dahl

    IPC分类号： B01J8/00 ,  B01J8/02 ,  B01J8/04 ,  B01J8/06

    摘要： In an adiabatic axial flow converter, in which process gas passes from an outer annulus via a catalyst bed, wherein the process gas is converted to a product, to an inner centre tube, the catalyst bed comprises at least one module comprising one or more catalyst layers. Feed means are arranged to provide a flow of process gas from the outer annulus to an inlet part of one or more modules, and collector means are arranged to provide a flow of product stream of converted process gas which passes axially through the catalyst bed of one or more of the modules to the centre tube.