Removal of ammonia nitrogen, ammonium nitrogen and urea nitrogen by oxidation with hypochlorite-containing solutions from exhaust air in plants for producing ammonia and urea
    1.
    发明授权
    Removal of ammonia nitrogen, ammonium nitrogen and urea nitrogen by oxidation with hypochlorite-containing solutions from exhaust air in plants for producing ammonia and urea 有权
    通过用于产生氨和尿素的植物中的排出空气中的含次氯酸盐溶液的氧化来除去氨氮,铵氮和尿素氮

    公开(公告)号:US08398945B2

    公开(公告)日:2013-03-19

    申请号:US13133780

    申请日:2009-11-27

    CPC分类号: B01D53/58 Y02A50/2346

    摘要: Process for scrubbing out ammonia nitrogen and/or ammonium nitrogen and/or urea nitrogen from exhaust gases enriched with these nitrogen compounds in plants for producing ammonia or urea, wherein the nitrogen compounds first form with a hypochlorite-containing solution in a scrubber an intermediate which under acidic or neutral reaction conditions is reacted to form elemental nitrogen and salt, and the reaction of the nitrogen compounds to form elemental nitrogen and salt proceeds in a pH range of 4 to 6.

    摘要翻译: 用于在用于生产氨或尿素的植物中从这些氮化合物富集的废气中净化氨氮和/或铵氮和/或尿素氮的方法,其中氮化合物首先在洗涤器中与含次氯酸盐的溶液形成中间体, 在酸性或中性反应条件下反应形成元素氮和盐,氮化合物形成元素氮和盐的反应在4至6的pH范围内进行。

    REMOVAL OF AMMONIA NITROGEN, AMMONIUM NITROGEN AND UREA NITROGEN BY OXIDATION WITH HYPOCHLORITE-CONTAINING SOLUTIONS FROM EXHAUST AIR IN PLANTS FOR PRODUCING AMMONIA AND UREA
    2.
    发明申请
    REMOVAL OF AMMONIA NITROGEN, AMMONIUM NITROGEN AND UREA NITROGEN BY OXIDATION WITH HYPOCHLORITE-CONTAINING SOLUTIONS FROM EXHAUST AIR IN PLANTS FOR PRODUCING AMMONIA AND UREA 有权
    通过在用于生产氨和尿素的植物中从排出的空气中除去含有含磷酸盐的溶液除去氨氮,氨氮和尿素氮

    公开(公告)号:US20110280779A1

    公开(公告)日:2011-11-17

    申请号:US13133780

    申请日:2009-11-27

    IPC分类号: B01D53/54 B01D53/58 B01D53/73

    CPC分类号: B01D53/58 Y02A50/2346

    摘要: Process for scrubbing out ammonia nitrogen and/or ammonium nitrogen and/or urea nitrogen from exhaust gases enriched with these nitrogen compounds in plants for producing ammonia or urea, wherein the nitrogen compounds first form with a hypochlorite-containing solution in a scrubber an intermediate which under acidic or neutral reaction conditions is reacted to form elemental nitrogen and salt, and the reaction of the nitrogen compounds to form elemental nitrogen and salt proceeds in a pH range of 4 to 6.

    摘要翻译: 用于在用于生产氨或尿素的植物中从这些氮化合物富集的废气中净化氨氮和/或铵氮和/或尿素氮的方法,其中氮化合物首先在洗涤器中与含次氯酸盐的溶液形成中间体, 在酸性或中性反应条件下反应形成元素氮和盐,氮化合物形成元素氮和盐的反应在4至6的pH范围内进行。

    LOW ENERGY PROCESS FOR THE PRODUCTION OF AMMONIA OR METHANOL
    3.
    发明申请
    LOW ENERGY PROCESS FOR THE PRODUCTION OF AMMONIA OR METHANOL 审中-公开
    用于生产氨或甲醇的低能量过程

    公开(公告)号:US20110120127A1

    公开(公告)日:2011-05-26

    申请号:US12737507

    申请日:2009-07-03

    IPC分类号: F01K7/32

    摘要: A process for utilizing synthesis gas heat for the generation of supercritical steam in a low energy ammonia or methanol plant is disclosed. The process involves a reforming or partial oxidation stage, at least one supercritical steam generator having a shell side and a tube side, at least one superheater, at least one back pressure turbine, at least one extraction and condensing turbine, and at least one boiler feedwater pump. The synthesized synthesis gas is sent to the shell side of the supercritical steam generator, and the supercritical steam generator is fed with pressurized feedwater. The feedwater flow is adjusted to maintain the steam temperature at the exit of the supercritical steam generator in the range of 375-500° C. The supercritical steam is generated in the supercritical steam generator at a pressure of 225-450 bar, the supercritical steam is further heated in a superheater to a temperature of 500-750° C., and the supercritical steam generated in the superheater is fed to a back pressure turbine.

    摘要翻译: 公开了一种利用合成气体热量在低能量氨或甲醇装置中产生超临界蒸汽的方法。 该方法包括重整或部分氧化阶段,至少一个具有壳侧和管侧的超临界蒸汽发生器,至少一个过热器,至少一个后压力涡轮机,至少一个提取和冷凝涡轮机以及至少一个锅炉 给水泵。 合成的合成气送到超临界蒸汽发生器的壳侧,超临界蒸汽发生器供给加压给水。 调节给水流量以保持超临界蒸汽发生器出口处的蒸汽温度在375-500℃范围内。超临界蒸汽在超临界蒸汽发生器中在225-450巴的压力下产生,超临界蒸汽 在过热器中进一步加热到500-750℃的温度,并将过热器中产生的超临界蒸汽供给到背压涡轮。

    VERTICAL CYLINDRICAL REACTOR WITH THIN CATALYST BED
    4.
    发明申请
    VERTICAL CYLINDRICAL REACTOR WITH THIN CATALYST BED 审中-公开
    具有薄催化床的垂直圆柱反应器

    公开(公告)号:US20110133126A1

    公开(公告)日:2011-06-09

    申请号:US13058746

    申请日:2009-08-10

    申请人: Dennis Lippmann

    发明人: Dennis Lippmann

    IPC分类号: C01B3/02 B01J8/02

    摘要: An axial thin-film reactor for carrying out catalytic reactions in the gas phase, comprising a cylindrical pressure casing, a device for letting in a gaseous reactant stream, a device for letting out a gaseous product stream, a device for receiving a catalyst bed arranged vertically in the reaction chamber and isolated from the reactor wall at the sides and at the ends so as to produce two separate chambers for the gaseous reactant stream and the gaseous product stream that are sealed with respect to one another and have two gas-permeable bounding walls arranged plane-parallel to one another. The device is designed in such a way that it has a height-to-thickness ratio greater than 1 and the catalyst bed has a height-to-thickness ratio greater than 1.

    摘要翻译: 一种用于在气相中进行催化反应的轴向薄膜反应器,包括圆柱形压力壳,用于放出气态反应物流的装置,用于排出气态产物流的装置,用于接收催化剂床的装置, 在反应室中垂直并且在侧壁和端部与反应器壁隔离,以便产生用于气态反应物流和气态产物流的两个分开的室,这些气体相对于彼此密封并具有两个气体可渗透的界限 墙壁相互平行排列。 该装置的设计方式使得其高度与厚度之比大于1,催化剂床的高度与厚度之比大于1。

    Multiple-pressure process for the production of ammonia
    5.
    发明授权
    Multiple-pressure process for the production of ammonia 有权
    用于生产氨的多重压力过程

    公开(公告)号:US07070750B2

    公开(公告)日:2006-07-04

    申请号:US10416131

    申请日:2001-10-11

    IPC分类号: C01C1/04

    摘要: The invention relates to a process for the production of ammonia from synthesis gas, the synthesis of ammonia from synthesis gas taking place in several lined-up synthesis systems, whereby ammonia is produced from a portion of the synthesis gas in each system with a part-stream being withdrawn and the respective downstream synthesis system being operated at a higher pressure than the respective upstream synthesis system.

    摘要翻译: 本发明涉及一种从合成气中生产氨的方法,在几个排列的合成系统中合成来自合成气的氨,其中从每个系统中的合成气的一部分产生氨, 流被取出,并且相应的下游合成系统在比各个上游合成系统更高的压力下操作。