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公开(公告)号：US07094927B2
公开(公告)日：2006-08-22
申请号：US10522560
申请日：2003-07-10
Applicant: Tjay Tjien Tjioe , Jozef Hubert Meessen
Inventor： Tjay Tjien Tjioe , Jozef Hubert Meessen
IPC: C07C273/12 , C07C273/04 , C07D251/60
CPC classification number: C07C273/12
Abstract: Process for increasing the capacity of a urea plant comprising a compression section, a high-pressure synthesis section, a urea recovery section, in which a urea melt is formed, and optionally a granulation section, the capacity of the urea plant being increased by the additional installation of a melamine plant and the urea melt from the urea recovery section of the urea plant being fed wholly or partly to the melamine plant and the residual gases from the melamine plant being returned wholly or partly to the high-pressure synthesis section and/or the urea recovery section of the urea plant.
Abstract translation: 增加尿素装置的容量的方法包括压缩部分，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，尿素装置的容量增加 三聚氰胺装置的附加装置和来自全部或部分供给三聚氰胺装置的尿素装置的尿素回收部分的尿素熔体和来自三聚氰胺装置的残余气体全部或部分返回到高压合成段和/ 或尿素装置的尿素回收部。
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公开(公告)号：US20120187223A1
公开(公告)日：2012-07-26
申请号：US13321498
申请日：2010-05-11
Applicant: Jozef Hubert Meessen , Willem Frederik Roos , Johannes Lambertus Kursten
IPC: B01J2/00
CPC classification number: B01J2/16 , C05C9/005 , C05G3/0058
Abstract: The present invention relates to a process for the production of granules from a liquid composition with a decreased dust production, said process comprising the steps of: applying the liquid composition onto solid particles that are kept in a continuous movement by a gas stream in a granulation zone of an oblong granulator, thereby depositing and solidifying said liquid composition around said solid particles to increase the size of the particles and thereby form grown solid particles; discharging a stream of said grown solid particles from the granulation zone, dividing, in a size-sorting apparatus, said stream of said grown solid particles into individual streams based on the size of said grown solid particles to thereby produce streams of undersized, oversized, and desired-sized grown solid particles; transferring said stream of said oversized grown solid particles to a size-reducing apparatus; crushing said stream of said oversized grown solid particles in said size-reducing apparatus, thereby reducing the particle size of said oversized grown solid particles and thereby producing a stream of crushed solid particles wherein that said stream of crushed solid particles is introduced in the granulator at a place below the place where the gas stream leaves the granulator.
Abstract translation: 本发明涉及一种由粉尘产生量减少的液体组合物生产颗粒的方法，所述方法包括以下步骤：将液体组合物施加到固体颗粒上，所述固体颗粒通过造粒中的气流保持连续运动 从而将所述液体组合物沉积并固化在所述固体颗粒周围，以增加颗粒的尺寸，从而形成生长的固体颗粒; 从造粒区排出所述生长的固体颗粒物流，根据所述生长的固体颗粒的尺寸，在尺寸分选装置中将所述生长的固体颗粒的所述物流分成单独的流，从而产生尺寸过小的， 和所需尺寸的生长固体颗粒; 将所述过大的生长固体颗粒的流转移到尺寸减小装置; 在所述尺寸减小装置中破碎所述超大的生长固体颗粒的流，从而减小所述过大的生长的固体颗粒的颗粒尺寸，从而产生破碎的固体颗粒流，其中所述破碎的固体颗粒流被引入造粒机 在气流离开造粒机的地方下方的地方。
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公开(公告)号：US09346016B2
公开(公告)日：2016-05-24
申请号：US13754584
申请日：2013-01-30
Applicant: Jozef Hubert Meessen
Inventor： Jozef Hubert Meessen
IPC: C07C273/02 , C07C273/16 , B01D53/92 , B01D53/79 , B01D53/90
CPC classification number: B01D53/92 , B01D53/79 , B01D53/90 , C07C273/16 , Y02C20/10
Abstract: The invention relates to process for the preparation of a urea-comprising aqueous stream, that is suitable for use in a unit for the reduction of NOx in combustion engine exhaust gases, wherein the urea-comprising aqueous stream is separated directly from or after a recovery section in a urea production process and is thereafter diluted with water until the urea-comprising stream comprises 30-35 wt % urea.
Abstract translation: 本发明涉及制备含尿素的含水流的方法，其适用于用于还原内燃机废气中的NOx的单元，其中含尿素的水流直接从回收或从回收后分离 然后用水稀释，直到含尿素流包含30-35重量％的尿素。
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公开(公告)号：US20110160486A1
公开(公告)日：2011-06-30
申请号：US12993824
申请日：2009-05-19
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，汽提塔和冷凝器以及回收部分的高压合成部分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形成第一合成溶液 被供给到第二反应器部分; 新鲜的二氧化碳被供给到第二反应器部分，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，然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中被进一步纯化 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，从所述汽提器到所述冷凝器的混合气流的流动 并且从冷凝器到第一反应器部分的冷凝物是重力流。
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公开(公告)号：US20080286188A1
公开(公告)日：2008-11-20
申请号：US11885666
申请日：2006-02-24
Applicant: Jozef Hubert Meessen
Inventor： Jozef Hubert Meessen
IPC: C01B21/087
CPC classification number: B01D53/92 , B01D53/79 , B01D53/90 , C07C273/16 , Y02C20/10
Abstract: The invention relates to a process for the preparation of a urea-comprising aqueous stream, that is suitable for use in a unit for the reduction of NOx in combustion engine exhaust gases, wherein the urea-comprising aqueous stream is separated directly from or after a recovery section in a urea production process and is thereafter diluted with water until the urea-comprising stream comprises 30-35 wt % urea.
Abstract translation: 本发明涉及一种制备含尿素水溶液流的方法，其适用于在内燃机废气中减少NO x的单元，其中含尿素水溶液 流在尿素生产过程中直接从回收部分中或之后分离，然后用水稀释直到含尿素流包含30-35重量％的尿素。
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Patent Agency Ranking
公开(公告)号：US06858755B2
公开(公告)日：2005-02-22
申请号：US10432876
申请日：2001-11-23
Applicant: Jozef Hubert Meessen , Kees Jonckers
Inventor： Jozef Hubert Meessen , Kees Jonckers
IPC: C07C273/04 , C07C273/00
CPC classification number: C07C273/04
Abstract: Process for the preparation of urea from ammonia and carbon dioxide, wherein the waste gases released at virtually atmospheric pressure in a urea plant are compressed by an ejector driven by the waste gas from the high-pressure synthesis and are supplied to a medium-pressure absorber. The pressure of the waste gases is increased by 0.15-1 MPa.
Abstract translation: 用于从氨和二氧化碳制备尿素的方法，其中在尿素装置中以几乎大气压释放的废气由通过来自高压合成的废气驱动的喷射器压缩，并被供给到中压吸收器 。 废气的压力提高了0.15-1MPa。
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公开(公告)号：US06793119B2
公开(公告)日：2004-09-21
申请号：US10228259
申请日：2002-08-27
Applicant: Joseph Maria Gerardus Eijkenboom , Jozef Hubert Meessen , Hendrikus Catharina Guillaume Maria Schrijen
Inventor： Joseph Maria Gerardus Eijkenboom , Jozef Hubert Meessen , Hendrikus Catharina Guillaume Maria Schrijen
IPC: B23K3102
CPC classification number: C22C38/44 , B23K35/3086 , B23K35/383 , B23K2101/10 , B23K2103/05 , C22C38/58
Abstract: Process for welding duplex steel in the presence of a shielding gas without use being made of welding aids and with nitrogen being added to the shielding gas and with an austenitic-ferritic duplex steel with a chromium content of between 28 and 35 wt. % and a nickel content of between 3 and 10 wt. % being used.
Abstract translation: 在保护气体存在下不使用焊接辅助材料并且将氮气加入到保护气体中以及铬含量为28至35重量％的奥氏体 - 铁素体双相钢的方法。 ％和镍含量在3和10重量％之间。 ％ 正在使用。
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公开(公告)号：US09464009B2
公开(公告)日：2016-10-11
申请号：US13496192
申请日：2010-08-10
Applicant: Jozef Hubert Meessen , Pantelis Orfanidis
Inventor： Jozef Hubert Meessen , Pantelis Orfanidis
IPC: B01D47/00 , C05C9/00 , C01C1/12 , C05C3/00 , C07C273/16
CPC classification number: C05C3/00 , B01D53/54 , B01D53/58 , B01D53/80 , B01D2251/506 , B01D2257/406 , B01D2257/70 , C01C1/12 , C01C1/22 , C05C3/005 , C05C9/00 , C07C273/16
Abstract: The invention relates to a method for recovery of urea dust and ammonia from a gas stream by contacting said gas stream with an aqueous sulphuric acid solution, thus forming an acid solution of ammonium sulphate and urea, characterized in that the acid solution is concentrated to a melt comprising less than 5 wt % of water, which melt is subsequently transferred into solid particles comprising urea and ammonium sulphate.
Abstract translation: 本发明涉及通过使所述气流与硫酸水溶液接触从气流中回收尿素灰尘和氨的方法，从而形成硫酸铵和尿素的酸溶液，其特征在于将酸溶液浓缩至 熔体包含少于5重量％的水，该熔体随后转移到包含尿素和硫酸铵的固体颗粒中。
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公开(公告)号：US08622325B2
公开(公告)日：2014-01-07
申请号：US13321498
申请日：2010-05-11
Applicant: Jozef Hubert Meessen , Willem Frederik Roos , Johannes Lambertus Kursten
CPC classification number: B01J2/16 , C05C9/005 , C05G3/0058
Abstract: The present invention relates to a process for the production of granules from a liquid composition with a decreased dust production, the process steps are as follows: applying the liquid composition onto solid particles that are kept in a continuous movement by a gas stream in a granulation zone of an oblong granulator, thereby depositing and solidifying liquid composition around the solid particles to increase the size of the particles and thereby form grown solid particles; discharging a stream of the grown solid particles from the granulation zone, dividing, in a size-sorting apparatus, the stream of grown solid particles into individual streams based on the size of the grown solid particles to thereby produce streams of undersized, oversized, and desired-sized grown solid particles; transferring the stream of oversized grown solid particles to a size-reducing apparatus; crushing the stream of oversized grown solid particles in the size-reducing apparatus, thereby reducing the particle size of the oversized grown solid particles and thereby producing a stream of crushed solid particles wherein that stream of crushed solid particles is introduced in the granulator at a place below the place where the gas stream leaves the granulator.
Abstract translation: 本发明涉及一种由粉尘产生量减少的液体组合物制备颗粒的方法，其工艺步骤如下：将液体组合物施加到固体颗粒上，该固体颗粒通过造粒中的气流保持连续运动 区域，由此在固体颗粒周围沉积和固化液体组合物以增加颗粒的尺寸，从而形成生长的固体颗粒; 从造粒区排出生长的固体颗粒物流，根据生长的固体颗粒的大小，在大小分选设备中将生长的固体颗粒物流分成单独的物流，从而产生尺寸过小的，过大的和 所需尺寸的生长固体颗粒; 将大尺寸生长的固体颗粒流转移到尺寸减小装置; 在尺寸减小装置中破碎过大的生长的固体颗粒物流，从而减小尺寸过大的生长的固体颗粒的颗粒尺寸，从而产生破碎的固体颗粒流，其中将破碎的固体颗粒流引入制粒机中的一个位置 在气流离开造粒机的地方以下。
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公开(公告)号：US20130207035A1
公开(公告)日：2013-08-15
申请号：US13754584
申请日：2013-01-30
Applicant: Jozef Hubert MEESSEN
Inventor： Jozef Hubert MEESSEN
IPC: B01D53/92
CPC classification number: B01D53/92 , B01D53/79 , B01D53/90 , C07C273/16 , Y02C20/10
Abstract: The invention relates to process for the preparation of a urea-comprising aqueous stream, that is suitable for use in a unit for the reduction of NOx in combustion engine exhaust gases, wherein the urea-comprising aqueous stream is separated directly from or after a recovery section in a urea production process and is thereafter diluted with water until the urea-comprising stream comprises 30-35 wt % urea.
Abstract translation: 本发明涉及制备含尿素的含水流的方法，其适用于用于还原内燃机废气中的NOx的单元，其中含尿素的水流直接从回收或从回收后分离 然后用水稀释，直到含尿素流包含30-35重量％的尿素。
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