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公开(公告)号：WO2016099269A1
公开(公告)日：2016-06-23
申请号：PCT/NL2015/050875
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: 本发明提出了一种具有全部循环的尿素生产的汽提方法。 所描述的尿素方法的重要特征是基本上完全的CO 2转化，这消除了对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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公开(公告)号：WO2016085343A1
公开(公告)日：2016-06-02
申请号：PCT/NL2015/050830
申请日：2015-11-26
Applicant: STAMICARBON B.V.
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 CO 2 can be reduced, the plant capacity can be increased and the high capital expenditure needed for CO 2 compression equipment is reduced.
Abstract translation: 本发明提供了一种生产尿素硝酸铵（UAN）的方法和装置。 该方法涉及在解离和中和部分之间使用任选与中压分解部分组合的冷凝部分。 本发明还提供了修改现有UAN工厂的方法。 本发明方法的优点在于可以减少二氧化碳排放，提高设备容量，降低二氧化碳压缩设备所需的高资本支出。
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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
Applicant: STAMICARBON B.V.
Inventor： MENNEN, Johannes Henricus , MEESSEN, Jozef Hubert
IPC: C07C273/04
CPC classification number: C07C273/04 , B01D5/006 , B01D5/009 , B01D47/00 , B01J10/00 , B23P15/26 , Y10T29/49352
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。
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14.发明申请UREA PRODUCTION PROCESS CHARACTERIZED BY SHORT UREA MELT TRANSPORTATION TIME BETWEEN LAST CONCENTRATOR AND PRILLING TOWER 审中-公开UREA生产过程由最近浓缩器和精馏塔之间的短期尿素熔体运输时间表征
公开(公告)号：WO2013025109A1
公开(公告)日：2013-02-21
申请号：PCT/NL2012/050577
申请日：2012-08-17
Applicant: STAMICARBON B.V. , MENNEN, Johannes Henricus
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 minimised. 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: 本发明涉及一种用于尿素生产的方法和一种尿素生产设备，其中在形成尿素颗粒的最后步骤中的氨排放减少。 在该方法中，尿素溶液的浓度在至少三个连续的浓度步骤中进行，并且将离开最后一个浓缩器的尿素熔体的停留时间最小化。 这可以通过将最后一个浓缩器与造粒塔的尿素熔融入口（例如造粒塔上方）相邻来实现。 以这种方式，与常规的尿素生产设备相比，造粒塔中的氨排放量可以减少多达50％。 本发明还涉及一种用于减少现有尿素生产设备的造粒塔中的氨排放的方法。
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公开(公告)号：EP4015455A1
公开(公告)日：2022-06-22
申请号：EP22156578.1
申请日：2016-03-29
Applicant: Stamicarbon B.V.
Inventor： DOBREE, Joey , MENNEN, Johannes Henricus
IPC: C01C1/18 , C05C9/00 , C07C273/04 , C07C273/02 , C07C275/02 , B01D3/00 , B01J19/00
Abstract: Disclosed is a method for the integrated production of two different urea products. One is an aqueous urea solution suitable for use in NOx abatement (generally indicated as Diesel Exhaust Fluid - DEF). The other is a solution used as a fertilizer, viz. Urea Ammonium Nitrate (UAN). The production of DEF and UAN are integrated as follows: ammonia recovered from the production of urea is used as a feed to the production of ammonium nitrate. At least part of an aqueous urea stream from urea production, is mixed with ammonium nitrate so as to obtain UAN.
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Patent Agency Ranking
公开(公告)号：EP3169419B1
公开(公告)日：2020-04-22
申请号：EP15750829.2
申请日：2015-07-16
Applicant: Stamicarbon B.V.
Inventor： MENNEN, Johannes Henricus
IPC: B01D9/00 , C07C273/16 , C07C275/02
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17.发明授权
公开(公告)号：EP2467203B1
公开(公告)日：2019-09-04
申请号：EP10739376.1
申请日：2010-08-09
Applicant: Stamicarbon B.V.
IPC: B01J19/24 , B01J19/00 , B01J10/00 , C07C273/04
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公开(公告)号：EP2844640B1
公开(公告)日：2018-08-29
申请号：EP13724000.8
申请日：2013-05-02
Applicant: Stamicarbon B.V.
Inventor： MENNEN, Johannes Henricus , MEESSEN, Jozef Hubert
IPC: C07C273/04
CPC classification number: C07C273/04 , B01D5/006 , B01D5/009 , B01D47/00 , B01J10/00 , B23P15/26 , Y10T29/49352
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.
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公开(公告)号：EP3169419A1
公开(公告)日：2017-05-24
申请号：EP15750829.2
申请日：2015-07-16
Applicant: Stamicarbon B.V.
Inventor： MENNEN, Johannes Henricus
IPC: B01D9/00 , C07C273/16 , C07C275/02
Abstract: Disclosed is a process for the preparation of a urea product suitable for being diluted with water so as to form an aqueous urea comprising solution for use in a unit for the reduction of NOx in combustion engine exhaust gases, also known as Diesel Exhaust Fluid (DEF) or to be used in De NOx systems of exhaust vapor from industrial furnaces. The process comprises obtaining an aqueous urea solution from or after a recovery section in a urea production process. This solution, which has a low content of impurities, is subjected to flash crystallization at a low pressure, so as to obtain a solid crystallized urea containing product, which is a free-flowing powder containing less than 0.2 wt. % water. This product is packaged under conditions such that the water content in the packaged product is maintained below 0.2 wt. %. The invention can also be used in a method of increasing the capacity of an existing urea plant.
Abstract translation: 本发明公开了一种制备适合用水稀释的尿素产物以形成含尿素的溶液的方法，该溶液用于还原内燃机废气中的NOx的装置，也称为柴油机排气流体（DEF） ）或用于来自工业炉的排气蒸汽的DeNOx系统中。 该方法包括在尿素生产过程中从回收部分或之后获得尿素水溶液。 将这种杂质含量低的溶液在低压下进行快速结晶，从而获得固体结晶的含尿素的产物，其是含有小于0.2重量％的水的自由流动的粉末。 该产品在包装产品中的含水量保持在低于0.2重量％的条件下进行包装。 本发明还可以用于增加现有尿素装置的容量的方法中。
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公开(公告)号：EP3233792B1
公开(公告)日：2019-09-04
申请号：EP15832911.0
申请日：2015-12-17
Applicant: Stamicarbon B.V.
Inventor： MENNEN, Johannes Henricus
IPC: C07C273/04
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