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    Method for enhancing the production capacity of a urea plant
    1.
    发明专利
    Method for enhancing the production capacity of a urea plant 审中-公开
    提高尿素工厂生产能力的方法

    公开(公告)号：JP2014169300A

    公开(公告)日：2014-09-18

    申请号：JP2014084868

    申请日：2014-04-16

    Applicant: Stamicarbon Bv ,  スタミカーボン ビー. ブイ.

    Inventor： TJIOE TJAY TJIEN ,  MEESSEN JOZEF HUBERT

    IPC: C07C273/04 ,  C07C273/12 ,  C07C275/00

    CPC classification number: C07C273/12

    Abstract: PROBLEM TO BE SOLVED: To provide a method for enhancing the capacity of a urea plant capable of enhancing the respective capacities of a high-pressure synthesis zone and a urea recovery zone alone.SOLUTION: In the provided method for enhancing the production capacity of urea overall, a melamine plant is additionally installed within an urea plant including: a compression zone of carbon dioxide and ammonia provided as raw ingredients; a high-pressure synthesis zone of urea; a urea recovery zone for forming a molten urea; and, optionally, a granulating zone. The additional melamine plant is installed so as to feed, entirely or partially into the melamine plant, the molten urea obtained from the urea recovery zone of the urea plant and to return, entirely or partially to the high-pressure synthesis zone and/or urea recovery zone of the urea plant, a residual gas from the melamine plant.

    Abstract translation: 要解决的问题：提供一种提高能够提高高压合成区和尿素回收区的容量的尿素装置的容量的方法。解决方案：提供尿素生产能力的方法 总的来说，三聚氰胺装置另外安装在尿素装置内，包括：作为原料提供的二氧化碳和氨的压缩区; 尿素高压合成区; 用于形成熔融尿素的尿素回收区; 和任选的造粒区。 另外的三聚氰胺装置被安装成从尿素装置的尿素回收区获得的熔融尿素完全或部分地进入三聚氰胺装置，并且完全或部分地返回到高压合成区和/或尿素 尿素厂的回收区，来自三聚氰胺厂的残留气体。

    Process for increasing capacity of urea plant
    2.
    发明专利
    Process for increasing capacity of urea plant 审中-公开
    增加尿素植物能力的方法

    公开(公告)号：JP2011079829A

    公开(公告)日：2011-04-21

    申请号：JP2010228829

    申请日：2010-10-08

    Applicant: Stamicarbon Bv ,  スタミカーボン ビー. ブイ.

    Inventor： TJIOE TJAY TJIEN ,  MEESSEN JOZEF HUBERT

    IPC: C07C273/12

    CPC classification number: C07C273/12

    Abstract: PROBLEM TO BE SOLVED: To provide a process for increasing the capacity of a urea plant including a compression section, a high-pressure synthesis section, a urea recovery section in which a urea melt is formed, and optionally a granulation section.
    SOLUTION: By the additional installation of a melamine plant to the urea plant, a urea melt from the urea recovery section of the urea plant is fed wholly or partly to the melamine plant, and the residual gases (containing carbon dioxide and ammonia) from the melamine plant are returned wholly or partly to the high-pressure synthesis section and/or the urea recovery section of the urea plant, whereby the production capacity of urea is increased.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种增加包括压缩部分，高压合成部分，其中形成尿素熔体的尿素回收部分和任选的造粒部分的尿素装置的容量的方法。 解决方案：通过在尿素装置中另外安装三聚氰胺装置，来自尿素装置的尿素回收部分的尿素熔体全部或部分地供给三聚氰胺装置，残留气体（含有二氧化碳和氨 ）全部或部分返回到尿素装置的高压合成部和/或尿素回收部，由此增加尿素的生产能力。 版权所有（C）2011，JPO＆INPIT

    СПОСОБ КОНЦЕНТРИРОВАНИЯ ПОТОКА ВОДНОГО КАРБАМАТА АММОНИЯ
    7.
    发明专利
    СПОСОБ КОНЦЕНТРИРОВАНИЯ ПОТОКА ВОДНОГО КАРБАМАТА АММОНИЯ 未知

    公开(公告)号：EA019704B1

    公开(公告)日：2014-05-30

    申请号：EA200702484

    申请日：2006-05-15

    Applicant: STAMICARBON

    Inventor： MENNEN JOHANNES HENRICUS ,  TJIOE TJAY TJIEN

    IPC: C07C273/12

    Abstract: Изобретениеотноситсяк способуконцентрированияпотокаводногокарбаматааммония, которыйобразуетсяв процессеполучениямочевины, имеетдавлениемежду 0,20 и 0,90 МПа, температурумежду 35 и 95°Си которыйсодержитпоменьшеймере 25 мас.% НО, причемспособвключаетстадиюповышениядавления, накоторойдавлениепотокаводногокарбаматааммонияповышаютдовеличинымежду 1,0 и 7 МПа, стадиюконденсации, накоторойпотокводногокарбаматааммонияконтактируетс газовымпотоком, образующимсяв процессеполучениямеламина, состоящим, посуществу, из NH, COи, необязательно, НОи имеющимболеенизкоесодержаниеНО, чемпотокводногокарбаматааммония, потокгазапоглощаетсяпотокомводногокарбаматааммония, такчтоконцентрированныйпотоккарбаматааммониясодержитмежду 15 и 35 мас.% HO, стадиюотведения, накоторойконцентрированныйпотоккарбаматааммонияотделяюти отводят.

    METHOD FOR CONCENTRATING AN AQUEOUS AMMONIUM CARBAMATE STREAM
    8.
    发明专利
    METHOD FOR CONCENTRATING AN AQUEOUS AMMONIUM CARBAMATE STREAM 未知

    公开(公告)号：MY148227A

    公开(公告)日：2013-03-29

    申请号：MYPI20062220

    申请日：2006-05-15

    Applicant: STAMICARBON

    Inventor： MENNEN JOHANNES HENRICUS ,  TJIOE TJAY TJIEN

    IPC: C07C269/00

    Abstract: THE INVENTION RELATES TO A METHOD FOR CONCENTRATING AN AQUEOUS AMMONIUM CARBAMATE STREAM, WHICH HAS BEEN FORMED IN A PROCESS FOR THE PREPARATION OF UREA, HAS A PRESSURE BETWEEN 0.20 MPA AND 0.9 MPA, A TEMPERATURE BETWEEN 35°C. AND 95°C., AND CONTAINS AT LEAST 25 WT. % H2 O, COMPRISING: A PRESSURE INCREASE STEP, IN WHICH THE AQUEOUS AMMONIUM CARBAMATE STREAM IS INCREASED IN PRESSURE TO A PRESSURE BETWEEN 1.0 MPA AND 7 MPA; A CONDENSATION STEP, IN WHICH THE AQUEOUS AMMONIUM CARBAMATE STREAM IS CONTACTED WITH A GAS STREAM, WHICH HAS BEEN FORMED IN A PROCESS FOR THE PREPARATION OF MELAMINE AND WHICH CONSISTS ESSENTIALLY OF NH3, CO2 AND OPTIONALLY H2O AND HAS A LOWER H2O CONTENT THAN THE AQUEOUS AMMONIUM CARBAMATE STREAM, THE GAS STREAM BEING ABSORBED IN THE AQUEOUS AMMONIUM CARBAMATE STREAM IN SUCH A WAY THAT A CONCENTRATED AMMONIUM CARBAMATE STREAM IS FORMED THAT CONTAINS BETWEEN 15 AND 35 WT. % H20; A DISCHARGE STEP, IN WHICH THE CONCENTRATED AMMONIUM CARBAMATE STREAM IS SEPARATED AND DISCHARGED.

    Method for concentrating an aqueous ammonium carbamate stream
    10.
    发明专利
    Method for concentrating an aqueous ammonium carbamate stream 未知

    公开(公告)号：AU2006244735B2

    公开(公告)日：2012-02-16

    申请号：AU2006244735

    申请日：2006-05-15

    Applicant: STAMICARBON

    Inventor： TJIOE TJAY TJIEN ,  MENNEN JOHANNES HENRICUS

    IPC: C07C273/12

    Abstract: The invention relates to a method for concentrating an aqueous ammonium carbamate stream, which has been formed in a process for the preparation of urea, has a pressure between 0.20 MPa and 0.9 MPa, a temperature between 35 °C and 95 °C, and contains at least 25 wt.% H2O, comprising: a pressure increase step, in which the aqueous ammonium carbamate stream is increased in pressure to a pressure between 1.0 MPa and 7 MPa; a condensation step, in which the aqueous ammonium carbamate stream is contacted with a gas stream, which has been formed in a process for the preparation of melamine and which consists essentially of NH, CO and optionally HO and has a lower HO content than the aqueous ammonium carbamate stream, the gas stream being absorbed in the aqueous ammonium carbamate stream in such a way that a concentrated ammonium carbamate stream is formed that contains between 15 and 35 wt.% HO; a discharge step, in which the concentrated ammonium carbamate stream is separated and discharged.

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