公开(公告)号：US08283494B2

公开(公告)日：2012-10-09

申请号：US12518118

申请日：2007-12-03

Applicant: Stephen Rudolf Alexander Zwart ,  Johannes Henricus Mennen

Inventor： Stephen Rudolf Alexander Zwart ,  Johannes Henricus Mennen

IPC: C07C273/04

CPC classification number: B01D3/343 ,  B01D5/006 ,  B01J3/04 ,  B01J2219/00006 ,  B01J2219/00108 ,  B01J2219/0011 ,  B01J2219/00162 ,  C07C273/04

Abstract: Process for the preparation of urea from ammonia and carbon dioxide in a urea production process comprising, in a high-pressure synthesis section: a. a reactor, wherein ammonia and carbon dioxide react to form a urea-comprising synthesis solution; b. a stripper, wherein the urea-comprising synthesis solution is heated and stripped, optionally in counter-current with a stripping agent; c. a submerged condenser, wherein the gas leaving the top of the stripper is, at least partially, condensed to form a condensate solution and d. an ejector, in the line connecting the submerged condenser and the reactor, supporting the transport of the condensate solution from the submerged condenser to the reactor, wherein a gas stream leaving the top of the submerged condenser is controlled by one or more controlling elements.

Abstract translation: 在尿素生产过程中由氨和二氧化碳制备尿素的方法，包括在高压合成段：a。 反应器，其中氨和二氧化碳反应以形成含尿素的合成溶液; b。 汽提器，其中所述含脲的合成溶液被加热和汽提，任选地与汽提剂逆流; C。 浸没冷凝器，其中离开汽提器顶部的气体至少部分地被冷凝以形成冷凝液和d。 喷射器，在连接浸没冷凝器和反应器的管线中，支持将冷凝液从浸没冷凝器输送到反应器，其中离开浸没式冷凝器顶部的气流由一个或多个控制元件控制。

公开(公告)号：US20110118506A1

公开(公告)日：2011-05-19

申请号：US12992890

申请日：2009-05-19

Applicant: Lambertus Wilhelmus Gevers ,  Jozef Hubert Meessen ,  Johannes Henricus Mennen

Inventor： Lambertus Wilhelmus Gevers ,  Jozef Hubert Meessen ,  Johannes Henricus Mennen

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 at least one reactor section, a stripper and a condenser wherein all the high-pressure equipment is placed in a low position, wherein the height of the high-pressure section is less than 35 m from ground level and at least one of the reactor sections comprises means for the separate distribution of ammonia in the bottom of the reactor section.

Abstract translation: 在包含至少一个反应器部分，汽提塔和冷凝器的含有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，其中所有高压设备都放置在低位置，其中 高压部分的高度距离地面低于35米，并且至少一个反应器部分包括用于在反应器部分的底部中单独分配氨的装置。

公开(公告)号：US09000215B2

公开(公告)日：2015-04-07

申请号：US14238721

申请日：2012-08-17

Applicant: Johannes Henricus Mennen

Inventor： Johannes Henricus Mennen

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。

公开(公告)号：US06884268B2

公开(公告)日：2005-04-26

申请号：US10250371

申请日：2001-12-14

Applicant: Johannes Henricus Mennen

Inventor： Johannes Henricus Mennen

IPC: B01J2/16 ,  B01D9/00

CPC classification number: B01J2/16

Abstract: Process for the preparation of granules from a liquid composition by spraying the liquid composition in the granulation zone of a granulating device onto or over solid particles present in the granulation zone that are being kept in motion, as a result of which these particles grow, and withdrawing a stream of particles from the granulation zone, yielding a stream of particles of the desired size, with a part of the air flow leaving the granulating device during granulation being returned to the granulating device. In this way only a small part of the air flow needs to be purified of the starting materials.

Abstract translation: 通过将造粒装置的造粒区中的液体组合物喷雾到存在于造粒区中的固体颗粒上或其上的颗粒状颗粒生长的方法从液体组合物制备颗粒的方法，结果这些颗粒生长，以及 从造粒区抽出一粒颗粒，产生所需大小的颗粒物流，一部分空气流在制粒过程中离开造粒装置返回造粒装置。 以这种方式，只需要将一小部分气流净化起始材料。

公开(公告)号：US09776957B2

公开(公告)日：2017-10-03

申请号：US14007637

申请日：2012-03-30

Applicant: Johannes Henricus Mennen ,  Barbara Cucchiella

Inventor： Johannes Henricus Mennen ,  Barbara Cucchiella

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.

公开(公告)号：US08377399B2

公开(公告)日：2013-02-19

申请号：US12936190

申请日：2009-03-30

Applicant: Johannes Henricus Mennen

Inventor： Johannes Henricus Mennen

IPC: B01J8/00 ,  B01J19/00 ,  C07C273/00 ,  C07D251/60

CPC classification number: C07C273/04 ,  B01J2219/00024

Abstract: Process for increasing the capacity of an existing urea plant comprising a high-pressure urea synthesis section and one or more recovery sections, wherein next to the existing urea plant a urea production unit, comprising a high-pressure urea synthesis section and a medium-pressure recovery section, is installed, wherein a urea-containing stream is produced from ammonia and carbon dioxide and the urea-containing stream is sent to the existing urea plant where the urea-containing stream is further purified in the low-pressure recovery section.

Abstract translation: 提高包括高压尿素合成部分和一个或多个回收部分的现有尿素装置的能力的方法，其中在现有的尿素装置旁边，包括高压尿素合成部分和中压的尿素生产装置 回收部分，其中由氨和二氧化碳产生含尿素的流，并且将含尿素流送入现有的尿素装置，其中含尿液流在低压回收部分进一步纯化。

公开(公告)号：US20120282149A1

公开(公告)日：2012-11-08

申请号：US13390723

申请日：2010-08-09

Applicant: Johannes Henricus Mennen ,  Joseph Maria Gerardus Eijkenboom

Inventor： Johannes Henricus Mennen ,  Joseph Maria Gerardus Eijkenboom

IPC: B01J7/02

CPC classification number: C07C273/04 ,  B01J10/00 ,  B01J19/0053 ,  B01J19/2415 ,  B01J2219/00081

Abstract: An apparatus used for the decomposition of non-converted ammonium carbamate in a supplied urea solution in a urea stripping synthesis section. The apparatus comprises a number of heat exchanger tubes between a top chamber and a bottom chamber, a liquid distributor mounted on each heat exchanger tube and a gas/liquid separator together with a perforated basket at the centre of the top chamber.

Abstract translation: 用于在尿素汽提合成部分中供应的尿素溶液中分解未转化的氨基甲酸铵的装置。 该装置包括在顶部室和底部室之间的多个热交换器管，安装在每个热交换器管上的液体分配器和气体/液体分离器以及顶部室的中心处的多孔篮。

公开(公告)号：US07407532B2

公开(公告)日：2008-08-05

申请号：US10541516

申请日：2004-01-09

Applicant: Andreas Johannes Biermans ,  Kees Jonckers ,  Johannes Henricus Mennen ,  Nora Anna De Wit ,  Herbert Willem Gerrit Hooijkaas ,  Bastiaan Renè Agnes Marie Van De Kerkhove

Inventor： Andreas Johannes Biermans ,  Kees Jonckers ,  Johannes Henricus Mennen ,  Nora Anna De Wit ,  Herbert Willem Gerrit Hooijkaas ,  Bastiaan Renè Agnes Marie Van De Kerkhove

IPC: C01C1/12

CPC classification number: C01C1/12

Abstract: The invention relates to a process for separating NH3 from a mixture containing NH3, CO2 and H2O which comprises an NH3 rectification step carried out in a NH3 separation device to which one or more streams containing NH3, CO2 and H2O including the mixture, are supplied, with a stream consisting substantially of gaseous NH3 being formed in the NH3 separation device, separated from the mixture and discharged. In the process according to the invention a condensation step is carried out on at least one of the stream consisting substantially of gaseous NH3 or the one or more streams containing NH3, CO2 and H2O supplied to the NH3 separation device, in which at least a part of the existing CO2 is converted to a liquid phase.

Abstract translation: 本发明涉及从含有NH 3，CO 2和H 2的混合物中分离NH 3的方法， O，其包括在NH 3分离装置中进行的NH 3精馏步骤，其中含有NH 3 N，CO _{分离装置，与混合物分离并排出。 在根据本发明的方法中，对基本上由气态NH 3或包含NH 3的一个或多个流组成的物流中的至少一个进行冷凝步骤， 提供给NH 3分离装置的CO 2 2和H 2 O 2，其中至少一部分现有的CO 2 / SUB>转化为液相。}

公开(公告)号：US06680407B2

公开(公告)日：2004-01-20

申请号：US10239744

申请日：2002-09-26

Applicant: Johannes Henricus Mennen

Inventor： Johannes Henricus Mennen

IPC: C07C27304

CPC classification number: C07C273/04 ,  B01J3/04 ,  B01J2219/00033 ,  B01J2219/00063 ,  B01J2219/00076 ,  B01J2219/00182 ,  B01J2219/00761 ,  B01J2219/185 ,  B01J2219/1943

Abstract: The invention relates to an installation for the preparation of urea from ammonia and carbon dioxide, the installation comprising two reactor sections in a vertically placed combined reactor and a high-pressure condenser section. The installation may comprise a vertically placed combined reactor, with the two reactor sections being separated by a high-pressure condenser section. In another embodiment the installation comprises a vertically placed combined reactor that comprises two reactor sections and a high-pressure condenser section placed outside the reactor. The invention also relates to a process for the preparation of urea in this installation. This involves feeding the gas stream leaving the stripper wholly or partly to the high-pressure condenser section of the installation. Preferably, a portion of the gas stream leaving the scrubber is fed to the second reactor section in the vertically placed combined reactor via an ammonia-driven ejector.

Abstract translation: 本发明涉及一种用于从氨和二氧化碳制备尿素的装置，该装置包括在垂直放置的组合反应器和高压冷凝器部分中的两个反应器部分。 该装置可以包括垂直放置的组合反应器，两个反应器部分由高压冷凝器部分分开。 在另一个实施例中，该装置包括垂直放置的组合反应器，其包括两个反应器部分和放置在反应器外部的高压冷凝器部分。 本发明还涉及在该装置中制备尿素的方法。 这涉及将离开汽提塔的气流全部或部分送入设备的高压冷凝器部分。 优选地，离开洗涤器的气流的一部分经由氨驱动的喷射器进入垂直放置的组合反应器中的第二反应器部分。

公开(公告)号：US08829240B2

公开(公告)日：2014-09-09

申请号：US12992890

申请日：2009-05-19

Applicant: Lambertus Wilhelmus Gevers ,  Jozef Hubert Meessen ,  Johannes Henricus Mennen

Inventor： Lambertus Wilhelmus Gevers ,  Jozef Hubert Meessen ,  Johannes Henricus Mennen

IPC: C07C273/00 ,  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 at least one reactor section, a stripper and a condenser wherein all the high-pressure equipment is placed in a low position, wherein the height of the high-pressure section is less than 35 m from ground level and at least one of the reactor sections comprises means for the separate distribution of ammonia in the bottom of the reactor section.

Abstract translation: 在包含至少一个反应器部分，汽提塔和冷凝器的含有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，其中所有高压设备都放置在低位置，其中 高压部分的高度距离地面低于35米，并且至少一个反应器部分包括用于在反应器部分的底部中单独分配氨的装置。