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    SYSTEMS AND METHODS FOR INCREASING AMMONIA PRODUCTION
    7.
    发明申请
    SYSTEMS AND METHODS FOR INCREASING AMMONIA PRODUCTION 审中-公开
    增加氨生产的系统和方法

    公开(公告)号：US20150251918A1

    公开(公告)日：2015-09-10

    申请号：US14638689

    申请日：2015-03-04

    申请人： KELLOGG BROWN & ROOT LLC

    发明人： Trevor Williams Nurse ,  Girishkumar Natvarbhai Patel

    IPC分类号： C01C1/04 ,  B01J19/24 ,  C01B3/02

    CPC分类号： C01C1/0458 ,  B01J8/04 ,  C01B3/025 ,  C01B3/38 ,  C01B3/48 ,  C01B2203/0233 ,  C01B2203/0244 ,  C01B2203/0283 ,  C01B2203/0415 ,  C01B2203/0425 ,  C01B2203/043 ,  C01B2203/0445 ,  C01B2203/047 ,  C01B2203/0475 ,  C01B2203/068 ,  C01B2203/1017 ,  C01B2203/1058 ,  Y02P20/52

    摘要： Systems and methods for producing ammonia. The system can include a first ammonia converter, a second ammonia converter, a product separator, and an ammonia recovery unit. The first ammonia converter can be adapted to react a syngas to produce a first ammonia product and a first purge gas. The second ammonia converter can be in fluid communication with the first ammonia converter and can be adapted to react the first purge gas to produce an effluent. The product separator can be in fluid communication with the second ammonia converter and can be adapted to separate the effluent to produce a second ammonia product and a second purge gas. The ammonia recovery unit can be in fluid communication with the product separator and can be adapted to separate at least a portion of the second purge gas to produce a third ammonia product and a third purge gas.

    摘要翻译： 用于生产氨的系统和方法。 该系统可以包括第一氨转化器，第二氨转化器，产物分离器和氨回收单元。 第一氨转化器可以适于使合成气反应以产生第一氨产物和第一吹扫气体。 第二氨转化器可以与第一氨转化器流体连通，并且可以适应于使第一吹扫气体反应以产生流出物。 产物分离器可以与第二氨转化器流体连通，并且可以适于分离流出物以产生第二氨产物和第二吹扫气体。 氨回收单元可以与产品分离器流体连通，并且可以适于分离至少一部分第二吹扫气体以产生第三氨产物和第三吹扫气体。

    Pressure swing adsorption system for ammonia synthesis
    9.
    发明授权
    Pressure swing adsorption system for ammonia synthesis 失效
    用于氨合成的变压吸附系统

    公开(公告)号：US5711926A

    公开(公告)日：1998-01-27

    申请号：US649122

    申请日：1996-05-14

    申请人： Kent S. Knaebel

    发明人： Kent S. Knaebel

    IPC分类号： B01D53/047 ,  C01C1/04

    CPC分类号： B01D53/04 ,  C01C1/0458 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2257/406 ,  B01D2259/401 ,  B01D53/047 ,  Y02P20/52

    摘要： The present invention is directed to a catalytic process for the synthesis of ammonia in an ammonia synthesis reactor wherein a dilute ammonia stream is withdrawn from the reactor and subjected to a treatment step to concentrate ammonia adsorbed (or extracted) from said dilute ammonia stream. Specifically, the invention is an improvement in the ammonia concentration treatment step. This improvement includes passing the dilute ammonia stream from the reactor into an adsorber in which is housed particulate adsorbent effective in adsorbing ammonia from the dilute ammonia stream passed through the adsorber. Desirably, adsorber conditions include a pressure close to those prevailing in the dilute ammonia stream withdrawn from the reactor with the temperature being as low as that of the feed to the reactor. Next, an effluent stream diminished in ammonia content is withdrawn from the adsorber. Finally, enriched ammonia is recovered from the adsorber. Such ammonia recovery from the adsorber may include a rinse step in which enriched ammonia is admitted to the adsorber while withdrawing unadsorbed feed from the interstices of the adsorber, conventional blowdown where ammonia is desorbed, a low pressure purge with recycled dilute ammonia stream, and re-pressurization of the adsorbent bed with additional recycled dilute ammonia stream so that the adsorber is in condition for reuse in the adsorbing step of the process. Desirably, multiple adsorbers operating in parallel are envisioned for use with the reactor in a continuous process.

    摘要翻译： 本发明涉及在氨合成反应器中合成氨的催化方法，其中稀氨流从反应器中排出并进行处理步骤以浓缩从所述稀氨流中吸附（或提取）的氨。 具体而言，本发明是氨浓度处理工序的改进。 这种改进包括使来自反应器的稀氨气流进入吸附器，在该吸附器中容纳有效吸附通过吸附器的稀氨气流中的氨的微粒吸附剂。 理想地，吸附器条件包括接近从反应器中排出的稀氨流中的那些的压力，其温度与反应器的进料的温度一样低。 接下来，从吸附器中排出氨含量减少的流出物流。 最后，从吸附器回收富集的氨。 来自吸附器的氨回收可以包括漂洗步骤，其中富集的氨进入吸附器，同时从吸附器的空隙排出未吸附的进料，其中氨被解吸的常规排污，用再循环的稀氨流的低压吹扫 - 用另外的再循环稀氨流使吸附剂床加压，使得吸附剂在该方法的吸附步骤中处于再利用状态。 期望地，在并联操作的多个吸附器被设想为在连续过程中与反应器一起使用。

    SYSTEM AND METHOD TO SYNTHESIZE AMMONIA
    10.
    发明申请
    SYSTEM AND METHOD TO SYNTHESIZE AMMONIA 审中-公开

    公开(公告)号：US20180208475A1

    公开(公告)日：2018-07-26

    申请号：US15876259

    申请日：2018-01-22

    申请人： Gas Technology Institute

    发明人： Ronald J. STANIS ,  Jeffrey A. MAYS

    IPC分类号： C01C1/04

    CPC分类号： C01C1/0429 ,  C01C1/0458 ,  C01C1/0476 ,  Y02P20/52

    摘要： A system and method for producing ammonia at high conversion rates. The system having a fluidized bed reactor with a fluidized zone with catalyst particles. The fluidized bed reactor is preferably configured to receive a continuous flow of solid sorbent particles, nitrogen, and hydrogen, with the catalyst particles being at least ten times larger than the sorbent particles. The method allows for the nitrogen and hydrogen react on a surface of the catalyst in order to generate ammonia that is adsorbed by the sorbent particles. The method extracts the adsorbed ammonia from the sorbent particles with a sorbent regenerator to product a pure ammonia product.