A METHOD FOR REVAMPING AN AMMONIA CONVERTER
    2.
    发明公开
    A METHOD FOR REVAMPING AN AMMONIA CONVERTER 审中-公开
    VERFAHREN ZUR MODERNISIERUNG EINES AMMONIAKWANDLERS

    公开(公告)号:EP3115338A1

    公开(公告)日:2017-01-11

    申请号:EP15175687.1

    申请日:2015-07-07

    申请人: Casale SA

    发明人: Carrara, Davide

    IPC分类号: C01C1/04 B01J8/04

    摘要: Method for revamping a multi-bed ammonia converter, wherein said converter comprises a plurality of adiabatic catalytic beds including a first catalytic bed and one or more further catalytic bed(s), said catalytic beds being arranged in series so that the effluent of a bed is further reacted in the subsequent bed; at least a first inter-bed heat exchanger arranged between said first catalytic bed and a second catalytic bed to cool the effluent of said first bed before admission into said second bed, and optionally further inter-bed heat exchanger(s) arranged between consecutive beds; said method involves the conversion of said first catalytic bed into an isothermal catalytic bed.

    摘要翻译: 一种改进多床氨转化器的方法,其中所述转化器包括多个绝热催化床,包括第一催化床和一个或多个另外的催化床,所述催化床被串联排列,使得床的流出物 在随后的床中进一步反应; 布置在所述第一催化床和第二催化床之间的至少第一床间热交换器,以在进入所述第二床之前冷却所述第一床的流出物,以及任选地进一步布置在连续床之间的床间热交换器 ; 所述方法涉及将所述第一催化床转化为等温催化床。

    Process and reactor for the preparation of ammonia
    7.
    发明公开
    Process and reactor for the preparation of ammonia 有权
    Verfahren und Vorrichtung zur Herstellung von Ammoniak

    公开(公告)号:EP1123899A1

    公开(公告)日:2001-08-16

    申请号:EP01101508.8

    申请日:2001-01-24

    申请人: Haldor Topsoe A/S

    发明人: Gam, Erik Andreas

    IPC分类号: C01C1/04 B01J8/04

    摘要: Process and reactor for the preparation of ammonia at elevated pressure and temperature in an ammonia reactor, wherein a process stream of ammonia synthesis gas is successively passed through at least three catalyst beds with intermediate cooling of partially reacted synthesis gas leaving the catalyst beds by heat exchange in heat exchangers arranged between each catalyst bed. The process stream is obtained by combining prior to introduction into a first catalyst bed, a first feed stream of synthesis gas having been preheated through indirect heat exchange during the intermediate cooling of the partially converted synthesis gas and a second feed stream of synthesis gas for adjustment of temperature of the process stream. The first feed stream is passed successively through the interbed heat exchangers for cooling the partially converted synthesis gas and space velocity of the synthesis gas is adjusted to be substantially in the same range in all catalyst beds.

    摘要翻译: 用于在氨反应器中在升高的压力和温度下制备氨的工艺和反应器,其中氨合成气的工艺流连续通过至少三个催化剂床,通过热交换将部分反应的合成气离开催化剂床的中间冷却 在布置在每个催化剂床之间的热交换器中。 工艺流通过在引入第一催化剂床之前组合而获得,合成气的第一进料流在部分转化的合成气的中间冷却期间通过间接热交换预热,以及用于调节的第二合成气进料流 的工艺流的温度。 第一进料流依次通过用于冷却部分转化的合成气的中间热交换器,并将合成气的空间速度调节为在所有催化剂床中基本上在相同的范围内。

    Zweistufiger Ammoniakkonverter mit wenigstens einem Katalysatorbett mit in dessen Inneren angeordneten Wärmetauscher
    9.
    发明公开
    Zweistufiger Ammoniakkonverter mit wenigstens einem Katalysatorbett mit in dessen Inneren angeordneten Wärmetauscher 失效
    设置在所述内部热交换器与至少一个催化剂床的两级氨转换器。

    公开(公告)号:EP0282699A2

    公开(公告)日:1988-09-21

    申请号:EP88100898.1

    申请日:1988-01-22

    申请人: Uhde GmbH

    IPC分类号: C01C1/04

    摘要: Bei einem zweistufigen Ammoniakkonverter mit wenigstens ei­nem ringförmig im Druckgehäuse angeordneten Katalysator­bett und einem dazu zentrisch im Inneren angeordneten, vom Reaktionsgas durchströmbaren Wärmetauscher soll eine Lö­sung geschaffen werden, mit der gerade die Führung der Wär­metauscherrohre, Optimierung, Entkopplung der Länge des Wärmetauschers von der Höhe des Katalysatorbettes und auch ein günstiger Wärmeübergang erreichbar ist, wobei insbeson­dere eine konstruktiv einfache Lösung gefunden werden soll. Dies wird dadurch erreicht, daß der Wärmetauscher (5) als ein Einboden-Wärmetauscher mit zentral und U-för­mig in einem Boden (7) angeordneten Wärmetauscherrohren (6) ausgebildet ist, wobei die Rohrschenkel der U-Rohre für den Eintritt mittig und den Austritt in der Peripherie angeordnet sind.

    摘要翻译: 在两个阶段的氨转换器包含在环形的设计方式和哪些可以通过由反应气体流动并居中地布置在内部相对于所述床的热交换器中的压力外壳设置的至少一个催化剂床,一个解决方案是 哪个爱尤其是热交换器管的引导,优化,所述热交换器从所述催化剂床的高度,甚至一个的热更有利的传输是可以实现的,其中,特别地,溶液中的长度的去耦可以设置有 在结构方面简单shoulderstand被发现。 这是通过构造在热交换器(5)作为单板式热交换器具有热交换管(6)的居中布置在U形方式的板(7)实现的,所述U形管的侧管被布置 集中用于入口和在圆周上对插座被布置。

    Improved catalytic gas synthesis process and apparatus
    10.
    发明公开
    Improved catalytic gas synthesis process and apparatus 失效
    改进的催化气合成方法和装置

    公开(公告)号:EP0121355A3

    公开(公告)日:1988-06-08

    申请号:EP84301484

    申请日:1984-03-06

    IPC分类号: B01J08/00 C01C01/04 C01B03/02

    摘要: The present invention is generally directed (Figure 2) to an improved process and apparatus for the production of gaseous products such as ammonia by catalytic, exothermic gaseous reactions and is specifically directed to an improved process which utilizes a gas-phase catalytic reaction of nitrogen and hydrogen for the synthesis of ammonia. This improved process for the production of ammonia utilizes an ammonia converter apparatus 110 designed to comprise at least two catalyst stages 102 and 106 and a reheat exchanger 104 so arranged as to provide indirect heat exchange of the gaseous effluent 107 from the last reactor catalyst stage 106 with the effluent from at least one other reactor catalyst stage (e.g., 103) having a higher temperature level in orderto reheat the effluent from the last reactor catalyst stage 107 prior to exiting the reactorvessel 110, thereby facilitating higher level heat recovery from the reactor effluent.