METHOD AND APPARATUS FOR THE PRODUCTION OF UREA FROM AMMONIA AND CARBON DIOXIDE
    1.
    发明申请
    METHOD AND APPARATUS FOR THE PRODUCTION OF UREA FROM AMMONIA AND CARBON DIOXIDE 审中-公开
    从氨和二氧化碳生产尿素的方法和装置

    公开(公告)号:WO2013165246A1

    公开(公告)日:2013-11-07

    申请号:PCT/NL2013/050330

    申请日:2013-05-02

    Abstract: Method for the production of urea from ammonia and carbon dioxide in a urea plant containing a high-pressure synthesis section with a horizontal pool condenser, wherein the method comprises exchanging heat from a high pressure process medium received in a shell section of the pool condenser to a medium pressure urea containing solution received in a first heat exchanging section provided in the pool condenser to at least decompose ammonium carbamate into NH 3 and CO 2 , wherein the method further comprises exchanging heat from the high pressure process medium to a low pressure steam condensate received in a second heat exchanging section provided in the pool condenser to produce low pressure steam. The invention also relates to an apparatus for the production of urea from ammonia and carbon dioxide.

    Abstract translation: 在含有具有水平冷凝器的高压合成部分的尿素装置中由氨和二氧化碳生产尿素的方法,其中所述方法包括将从所述池冷凝器的壳部分中接收的高压处理介质的热交换到 容纳在所述池冷凝器中的第一热交换部分中的中压含尿素溶液以至少将氨基甲酸铵分解成NH 3和CO 2,其中所述方法还包括将热量从所述高压处理介质交换到低压蒸汽冷凝物 设置在池冷凝器中以产生低压蒸汽的第二热交换部分。 本发明还涉及一种用于从氨和二氧化碳生产尿素的设备。

    UREA PRODUCTION PLANT
    2.
    发明申请
    UREA PRODUCTION PLANT 审中-公开
    乌拉圭生产厂

    公开(公告)号:WO2013165245A1

    公开(公告)日:2013-11-07

    申请号:PCT/NL2013/050328

    申请日:2013-05-02

    Abstract: Disclosed is a plant for the production of urea. The plant comprises conventional sections for synthesis and recovery, for evaporation and condensation, for urea finishing, and for dust scrubbing. According to the invention, an additional evaporation and condensation loop is introduced from and to the dust scrubbing section. This loop results in a more favorable energy consumption of the plant.

    Abstract translation: 公开了一种用于生产尿素的设备。 该设备包括用于合成和回收的常规部分,用于蒸发和冷凝,用于尿素整理和用于灰尘洗涤。 根据本发明,从灰尘洗涤部分引入附加的蒸发和冷凝环路。 该循环导致植物更有利的能量消耗。

    PROCESS FOR THE PRODUCTION OF UREA FROM AMMONIA AND CARBON DIOXIDE
    3.
    发明公开
    PROCESS FOR THE PRODUCTION OF UREA FROM AMMONIA AND CARBON DIOXIDE 有权
    VERFAHREN ZUR HERSTELLUNG VON HARNSTOFF AUS AMMONIAK UND KOHLENDIOXID

    公开(公告)号:EP2297094A1

    公开(公告)日:2011-03-23

    申请号:EP09749836.4

    申请日:2009-05-19

    CPC classification number: C07C273/04

    Abstract: Process for the production of urea from ammonia and carbon dioxide in a urea plant containing a high-pressure synthesis section comprising two reactor sections, a stripper and a condenser, and a recovery section, wherein in the first reactor section a first synthesis solution is formed that is fed to the second reactor section; fresh carbon dioxide is fed to the second reactor section and in the second reactor section a second synthesis solution is formed that is fed to the stripper, wherein the second synthesis solution is stripped with the use of carbon dioxide as stripping gas and the mixed gas stream obtained in the stripper is sent to the condenser together with fresh ammonia and a carbamate stream, whereafter the condensate that is formed in the condenser is fed to the first reactor section and the urea stream that is obtained in the stripper is further purified in the recovery section, wherein the flow of the first synthesis solution from the first reactor section to the second reactor section, the flow of the second synthesis solution from the second reactor section to the stripper, the flow of the mixed gas stream from the stripper to the condenser and of the condensate from the condenser to the first reactor section is a gravity flow.

    Abstract translation: 在包含两个反应器部分,汽提塔和冷凝器和回收部分的高压合成段的尿素装置中从氨和二氧化碳生产尿素的方法,其中在第一反应器部分中形成第一合成溶液 被馈送到第二反应器部分; 将新鲜的二氧化碳进料到第二反应器部分,并且在第二反应器部分中形成第二合成溶液,该第二合成溶液被供给到汽提器中,其中第二合成溶液用二氧化碳作为汽提气汽提,并且混合气流 在汽提器中获得的冷凝器与新鲜氨和氨基甲酸盐流一起被送到冷凝器,之后在冷凝器中形成的冷凝物被供给到第一反应器部分,并且在汽提器中获得的尿素流在回收器中进一步纯化 其中所述第一合成溶液从所述第一反应器部分到所述第二反应器部分的流动,所述第二合成溶液从所述第二反应器部分到所述汽提器的流动,所述混合气流从所述汽提器到所述冷凝器 并且从冷凝器到第一反应器部分的冷凝物是重力流。

    METHOD AND APPARATUS FOR THE PRODUCTION OF UREA FROM AMMONIA AND CARBON DIOXIDE
    9.
    发明公开
    METHOD AND APPARATUS FOR THE PRODUCTION OF UREA FROM AMMONIA AND CARBON DIOXIDE 有权
    方法和装置尿素的氨和二氧化碳为原料制备

    公开(公告)号:EP2844641A1

    公开(公告)日:2015-03-11

    申请号:EP13724002.4

    申请日:2013-05-02

    Abstract: Method for the production of urea from ammonia and carbon dioxide in a urea plant containing a high-pressure synthesis section with a horizontal pool condenser, wherein the method comprises exchanging heat from a high pressure process medium received in a shell section of the pool condenser to a medium pressure urea containing solution received in a first heat exchanging section provided in the pool condenser to at least decompose ammonium carbamate into NH
    3 and CO
    2 , wherein the method further comprises exchanging heat from the high pressure process medium to a low pressure steam condensate received in a second heat exchanging section provided in the pool condenser to produce low pressure steam. The invention also relates to an apparatus for the production of urea from ammonia and carbon dioxide.

    Abstract translation: 用于生产由氨和二氧化碳在尿素工厂包含具有水平池式冷凝器的高压合成段尿素的方法,worin所述方法包括从在池式冷凝器的一个外壳部分接收高压工艺介质进行热交换而 中压尿素溶液含有在池式冷凝器提供氨基甲酸铵的至少分解成NH 3和CO 2的第一热交换部接收,worin所述方法还包括从高压处理介质进行热交换,以在接收到的低压蒸汽冷凝物 在池式冷凝器的第二热交换部,以产生低压蒸汽。 因此,本发明涉及到用于由氨和二氧化碳生产尿素的。

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