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    METHOD AND PLANT FOR PRODUCING UREA-AMMONIUM NITRATE (UAN)
    23.
    发明公开
    METHOD AND PLANT FOR PRODUCING UREA-AMMONIUM NITRATE (UAN) 审中-公开
    用于生产硝酸尿胺（UAN）的方法和设备

    公开(公告)号：EP3224223A1

    公开(公告)日：2017-10-04

    申请号：EP15832900.3

    申请日：2015-11-26

    Applicant: Stamicarbon B.V.

    Inventor： MENNEN, Johannes Henricus ,  BUITINK, Fredericus Henricus Maria ,  ROOS, Willem Frederik

    IPC: C05C1/00 ,  C05C9/00

    CPC classification number: C01C1/185 ,  B01J10/007 ,  B01J19/002 ,  B01J2219/00024 ,  B01J2219/0004 ,  C05C1/00 ,  C05C9/00

    Abstract: The invention provides a method and a plant for producing urea ammonium nitrate (UAN). The method involves the use of a condensation section, optionally in combination with a medium pressure decomposition section, between the dissociation and neutralization sections. The invention further provides a method of modifying an existing UAN plant. The advantages of the process of the invention are that the emission of CO2 can be reduced, the plant capacity can be increased and the high capital expenditure needed for CO2 compression equipment is reduced.

    Abstract translation: 本发明提供了生产尿素硝酸铵（UAN）的方法和设备。 该方法涉及在解离和中和段之间使用冷凝段，任选地与中压分解段组合。 本发明还提供了一种修改现有UAN设备的方法。 本发明方法的优点在于可以减少二氧化碳的排放，增加设备容量并降低二氧化碳压缩设备所需的高资本支出。

    ZERO EMISSION UREA PROCESS AND PLANT
    24.
    发明公开
    ZERO EMISSION UREA PROCESS AND PLANT 有权
    排放量发生变化

    公开(公告)号：EP2691365A1

    公开(公告)日：2014-02-05

    申请号：EP12712413.9

    申请日：2012-03-30

    Applicant: Stamicarbon B.V.

    Inventor： MENNEN, Johannes Henricus ,  CUCCHIELLA, Barbara

    IPC: C07C273/04 ,  B01J19/24

    CPC classification number: C07C273/04 ,  B01J19/24

    Abstract: Disclosed is a method for the production of urea allowing a substantial reduction, even down to zero, of the continuous emission of ammonia conventionally resulting from such a process. According to a preferred embodiment of the invention, the urea-forming reaction from carbon dioxide and ammonia is conducted in a synthesis section that does not require passivation by oxygen. As a result of the absence of oxygen, a hydrogen-rich gas stream results from the synthesis section, that can be used as a fuel in an incinerator. In the incinerator, ammonia-comprising gas streams from the urea production process are combusted.

    Abstract translation: 公开了用于生产尿素的方法，其允许通常由这种方法产生的氨的连续排放的显着降低甚至降低至零。 根据本发明的优选实施方案，来自二氧化碳和氨的脲形成反应在不需要氧钝化的合成部分中进行。 由于不存在氧气，可以从合成部分产生富氢气流，其可以在焚烧炉中用作燃料。 在焚烧炉中，来自尿素生产过程的含氨气流被燃烧。

    UREA PRODUCTION PROCESS CHARACTERIZED BY SHORT UREA MELT TRANSPORTATION TIME BETWEEN LAST CONCENTRATOR AND PRILLING TOWER
    26.
    发明授权
    UREA PRODUCTION PROCESS CHARACTERIZED BY SHORT UREA MELT TRANSPORTATION TIME BETWEEN LAST CONCENTRATOR AND PRILLING TOWER 有权
    其特征尿素短时间内运输过程尿素熔融物最后浓缩造粒塔。

    公开(公告)号：EP2744780B1

    公开(公告)日：2017-02-22

    申请号：EP12750881.0

    申请日：2012-08-17

    Applicant: Stamicarbon B.V.

    Inventor： MENNEN, Johannes Henricus

    IPC: C07C273/04

    CPC classification number: C07C273/04 ,  Y10T29/49826

    Abstract: The invention relates to a method for urea production and to a urea production plant wherein ammonia emission in the final step of forming urea prills is reduced. In the method, the concentration of a urea solution is performed in at least three consecutive concentration steps and the residence time of urea melt leaving a last concentrator to the prilling tower is minimized. This can be achieved by placing the last concentrator in adjacency with a urea melt inlet of the prilling tower, such as above the prilling tower. In this way, the ammonia emission in the prilling tower can be reduced by as much as 50% compared to the conventional urea production plants. The invention further relates to a method for reducing ammonia emission in the prilling tower of an existing urea production plant.

    Abstract translation: 本发明涉及一种尿素生产和在形成尿素颗粒的最终步骤尿素生产装置worin氨的排放被降低的方法。 在该方法中，尿素溶液的浓度在至少三个连续的浓缩步骤，执行和尿素熔体离开的负载集中到造粒塔中的停留时间最小化。 这可以通过用尿素将所述负荷集中在邻接地取得熔融造粒塔的入口，：如造粒塔的上方。 以这种方式，可以通过多达50％降低在造粒塔中的氨排放相比于传统的尿素生产设备。 本发明还涉及一种用于减少排放的氨在现有的尿素生产设备的造粒塔的方法。

    PROCESS FOR THE PRODUCTION OF UREA FROM AMMONIA AND CARBON DIOXIDE
    28.
    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

    Applicant: Stamicarbon B.V.

    Inventor： GEVERS, Lambertus Wilhelmus ,  MEESSEN, Jozef Hubert ,  MENNEN, Johannes Henricus

    IPC: C07C273/04

    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。

    PROCESS FOR UREA PRODUCTION
    29.
    发明公开
    PROCESS FOR UREA PRODUCTION 审中-公开
    尿素生产工艺

    公开(公告)号：EP3233792A1

    公开(公告)日：2017-10-25

    申请号：EP15832911.0

    申请日：2015-12-17

    Applicant: Stamicarbon B.V.

    Inventor： MENNEN, Johannes Henricus

    IPC: C07C273/04

    CPC classification number: C07C273/04

    Abstract: The present invention presents a stripping process for urea production with a total recycle. An important characteristic of the described urea process is a substantially complete CO 2 conversion, which eliminates the need for carbamate recycle from the recovery section to the synthesis section. This increases the overall conversion and reduces operation costs.

    Abstract translation: 本发明提出了用于全部再循环的尿素生产的汽提方法。 所述尿素工艺的重要特征是基本上完全的CO 2转化，其消除了从回收部分到合成部分的氨基甲酸酯再循环的需要。 这增加了整体转换并降低了运营成本。

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