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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.

    Process for co-production of ammonia and methanol
    2.
    发明授权
    Process for co-production of ammonia and methanol 有权

    公开(公告)号：US10259718B2

    公开(公告)日：2019-04-16

    申请号：US15527657

    申请日：2015-12-02

    申请人： Haldor Topsøe A/S

    发明人： Per Juul Dahl

    IPC分类号： C01B3/12 ,  C01C1/04 ,  C07C1/04 ,  C07C1/12 ,  C07C1/32 ,  C07C31/04 ,  C07C29/151

    摘要： In a process for co-production of ammonia and methanol, the outlet stream from the reformer is split into two parts, one of which is subjected to shift, carbon dioxide removal, methanation, compression and ammonia synthesis, while the other part is compressed and fed to a once-through methanol synthesis section. Methanol is withdrawn from the methanol synthesis section, and the remaining effluent from said section is divided into two streams comprising hydrogen, of which one is fed to the shift section, while the other is recycled to the desulfurization unit. This way a favourable co-production method is obtained because recycle hydrogen for the desulfurization is provided, and furthermore a compression step is avoided.

    A PROCESS FOR CO-PRODUCTION OF AMMONIA, UREA AND METHANOL
    3.
    发明申请
    A PROCESS FOR CO-PRODUCTION OF AMMONIA, UREA AND METHANOL 有权
    一种生产氨，尿素和甲醇的方法

    公开(公告)号：US20160083260A1

    公开(公告)日：2016-03-24

    申请号：US14787797

    申请日：2014-04-16

    申请人： HALDOR TOPSØE A/S

    发明人： Per Juul Dahl

    IPC分类号： C01C1/04 ,  C07C29/151 ,  C07C273/10 ,  C01B3/48 ,  C01B3/50

    CPC分类号： C01C1/0488 ,  C01B3/025 ,  C01B3/382 ,  C01B3/48 ,  C01B3/50 ,  C01B3/52 ,  C01B2203/0233 ,  C01B2203/0244 ,  C01B2203/0283 ,  C01B2203/0415 ,  C01B2203/0475 ,  C01B2203/06 ,  C01B2203/061 ,  C01B2203/068 ,  C01B2203/1241 ,  C01B2203/141 ,  C01B2203/145 ,  C07C29/1518 ,  C07C273/04 ,  C07C273/10 ,  F25J3/04539 ,  F25J3/04587 ,  Y02P20/152 ,  Y02P20/52 ,  C07C31/04

    摘要： A process for co-production of ammonia, urea and methanol from natural gas, comprising the steps of (a) producing a synthesis gas by simultaneous feeding natural gas to an autothermal reformer (ATR) and to a steam methane reformer (SMR), the two reformers running in parallel, (b) feeding air to an air separation unit (ASU), where the air is split into oxygen, which is fed to the ATR, and nitrogen, (c) subjecting the synthesis gas from the SMR to a water gas shift, (d) removing the carbon dioxide from the synthesis gas from step (c) and leading it to urea synthesis in a urea synthesis unit, (e) combining the hydrogen-rich gas from step (d) with the nitrogen from step (b), removing catalyst poisons from the gases and leading the gas mixture to ammonia synthesis in an ammonia synthesis unit, (f) optionally removing part of the carbon dioxide from the syngas from the ATR in step (a) and leading it to urea synthesis in a urea synthesis unit and (g) leading the syngas from step (f) to the methanol synthesis unit, wherein synthesis gas from step (a) may be led either from the ATR outlet to the SMR outlet upstream from the shift stage or the other way.

    摘要翻译： 一种从天然气共同生产氨，尿素和甲醇的方法，包括以下步骤：（a）通过同时将天然气同时供给到自热重整器（ATR）和蒸汽甲烷重整器（SMR）来生产合成气， 两台并联运行的改质器，（b）将空气送入空气分离装置（ASU），空气分离成氧气，送入ATR，氮气，（c）使来自SMR的合成气体 （d）从步骤（c）的合成气中除去二氧化碳，并导致尿素合成单元中的尿素合成，（e）将来自步骤（d）的富氢气体与来自 步骤（b）中，从气体中除去催化剂毒物并将氨气合成装置导入氨合成，（f）在步骤（a）中任选地从合成气中除去部分二氧化碳，并将其导入 在尿素合成单元中的尿素合成和（g）将来自步骤（f）的合成气引导到我 其中来自步骤（a）的合成气可以从ATR出口或从换档级上游的SMR出口或其它方式引导。

    Adiabatic axial flow converter
    6.
    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.

    Process for heating an ATR
    8.
    发明授权
    Process for heating an ATR 有权

    公开(公告)号：US10106405B2

    公开(公告)日：2018-10-23

    申请号：US15117002

    申请日：2015-04-08

    申请人： Haldor Topsøe A/S

    发明人： Per Juul Dahl ,  Thomas Sandahl Christensen

    IPC分类号： C01B3/38 ,  C01B3/36 ,  F27D99/00

    摘要： The present invention relates to a process for heating an ATR or POX comprising the steps of heating a process stream by at least one heating means, admitting the heated process stream to an ATR or POX reactor through a main burner, and heating the ATR or POX reactor to or above autoignition temperature of the process stream via the heated process stream.