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公开(公告)号：US07414130B2
公开(公告)日：2008-08-19
申请号：US11777842
申请日：2007-07-13
申请人： Paolo Brunengo , Federico Zardi
发明人： Paolo Brunengo , Federico Zardi
IPC分类号： C07D251/60
CPC分类号： C07D251/60 , B01J2219/00006 , B01J2219/00092 , B01J2219/00103 , C07C273/12 , Y02P20/125 , Y02P20/582
摘要： In an integrated process for urea and melamine production, urea is produced in a urea plant (12) comprising a high pressure urea synthesis section (15) and a urea recovery section (16) for separating urea from a carbamate aqueous solution, and melamine is produced in a melamine plant (11) wherein off-gases resulting as byproducts of the melamine synthesis are discharged therefrom at a pressure of at least 2 bar and recycled to the high pressure urea synthesis section (15).
摘要翻译： 在尿素和三聚氰胺生产的综合方法中，尿素在尿素装置（12）中生产，尿素装置（12）包括高压尿素合成段（15）和用于从氨基甲酸酯水溶液中分离尿素的尿素回收段（16），三聚氰胺是 在三聚氰胺植物（11）中生产，其中作为三聚氰胺合成的副产物产生的废气在至少2巴的压力下从其中排出并再循环到高压尿素合成段（15）。
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公开(公告)号：US20070282102A1
公开(公告)日：2007-12-06
申请号：US11777842
申请日：2007-07-13
申请人： Paolo Brunengo , Federico Zardi
发明人： Paolo Brunengo , Federico Zardi
IPC分类号： C07C273/12 , B01J19/24 , C07D251/60
CPC分类号： C07D251/60 , B01J2219/00006 , B01J2219/00092 , B01J2219/00103 , C07C273/12 , Y02P20/125 , Y02P20/582
摘要： In an integrated process for urea and melamine production, urea is produced in a urea plant (12) comprising a high pressure urea synthesis section (15) and a urea recovery section (16) for separating urea from a carbamate aqueous solution, and melamine is produced in a melamine plant (11) wherein off-gases resulting as byproducts of the melamine synthesis are discharged therefrom at a pressure of at least 2 bar and recycled to the high pressure urea synthesis section (15).
摘要翻译： 在尿素和三聚氰胺生产的综合方法中，尿素在尿素装置（12）中生产，尿素装置（12）包括高压尿素合成段（15）和用于从氨基甲酸酯水溶液中分离尿素的尿素回收段（16），三聚氰胺是 在三聚氰胺植物（11）中生产，其中作为三聚氰胺合成的副产物产生的废气在至少2巴的压力下从其中排出并再循环到高压尿素合成段（15）。
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公开(公告)号：US07982068B2
公开(公告)日：2011-07-19
申请号：US12513487
申请日：2007-10-09
申请人： Federico Zardi , Paolo Brunengo , Paolo Sticchi
发明人： Federico Zardi , Paolo Brunengo , Paolo Sticchi
IPC分类号： C07C273/16 , C07C273/04
CPC分类号： C07C273/04
摘要： A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section operating at a predetermined medium pressure for the recovery of the ammonium carbamate and of the ammonia contained in it, comprises the steps of subjecting the urea aqueous solution resulting from the aforementioned dissociation step to decomposition in a low pressure urea recovery section and of using at least a part of the condensed steam, obtained by indirect thermal exchange with a second part of said aqueous solution comprising urea, ammonium carbmate and ammonia in a high-pressure stripping unit, as a heating fluid for the dissociation of the first part of the aqueous solution comprising urea, ammonium carbmate and ammonia in the medium-pressure treatment section.
摘要翻译： 一种由氨和二氧化碳生产尿素的方法，其中在尿素合成段中得到的包含尿素，氨基甲酸铵和氨水的部分水溶液在预定介质压力下操作的处理段中解离，以回收 氨基甲酸铵和其中所含的氨的方法包括以下步骤：将由上述解离步骤产生的尿素水溶液在低压尿素回收段中分解并使用至少一部分冷凝蒸汽，通过间接热 在包含尿素，氨基甲酸铵和氨的第二部分的高压汽提装置中与第二部分水溶液交换，所述加热流体用于在介质中包含尿素，氨基甲酸铵和氨的水溶液的第一部分的解离， 压力处理部。
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公开(公告)号：US20090124830A1
公开(公告)日：2009-05-14
申请号：US11911461
申请日：2006-04-06
申请人： Federico Zardi , Paolo Sticchi , Paolo Brunengo
发明人： Federico Zardi , Paolo Sticchi , Paolo Brunengo
IPC分类号： C07C273/04
CPC分类号： C07C273/04
摘要： A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section operating at a predetermined medium pressure for the recovery of the ammonium carbamate and of the ammonia contained in it, comprises the step of subjecting the urea aqueous solution resulting from the aforementioned dissociation step to decomposition in a low pressure urea recovery section.
摘要翻译： 一种由氨和二氧化碳生产尿素的方法，其中在尿素合成段中得到的包含尿素，氨基甲酸铵和氨水的部分水溶液在预定介质压力下操作的处理段中解离，以回收 氨基甲酸铵和其中所含的氨的方法包括在上述解离步骤中得到的尿素水溶液在低压尿素回收段中分解的步骤。
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公开(公告)号：US20100063321A1
公开(公告)日：2010-03-11
申请号：US12513487
申请日：2007-10-09
申请人： Federico Zardi , Paolo Brunengo , Paolo Sticchi
发明人： Federico Zardi , Paolo Brunengo , Paolo Sticchi
IPC分类号： C07C273/04 , B01J10/00
CPC分类号： C07C273/04
摘要： A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section operating at a predetermined medium pressure for the recovery of the ammonium carbamate and of the ammonia contained in it, comprises the steps of subjecting the urea aqueous solution resulting from the aforementioned dissociation step to decomposition in a low pressure urea recovery section and of using at least a part of the condensed steam, obtained by indirect thermal exchange with a second part of said aqueous solution comprising urea, ammonium carbmate and ammonia in a high-pressure stripping unit, as a heating fluid for the dissociation of the first part of the aqueous solution comprising urea, ammonium carbmate and ammonia in the medium-pressure treatment section.
摘要翻译： 一种由氨和二氧化碳生产尿素的方法，其中在尿素合成段中得到的包含尿素，氨基甲酸铵和氨水的部分水溶液在预定介质压力下操作的处理段中解离，以回收 氨基甲酸铵和其中所含的氨的方法包括以下步骤：将由上述解离步骤产生的尿素水溶液在低压尿素回收段中分解并使用至少一部分冷凝蒸汽，通过间接热 在包含尿素，氨基甲酸铵和氨的第二部分的高压汽提装置中与第二部分水溶液交换，所述加热流体用于在介质中包含尿素，氨基甲酸铵和氨的水溶液的第一部分的解离， 压力处理部。
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公开(公告)号：US07608735B2
公开(公告)日：2009-10-27
申请号：US11911461
申请日：2006-04-06
申请人： Federico Zardi , Paolo Sticchi , Paolo Brunengo
发明人： Federico Zardi , Paolo Sticchi , Paolo Brunengo
IPC分类号： C07C273/16 , C07C273/04
CPC分类号： C07C273/04
摘要： A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section operating at a predetermined medium pressure for the recovery of the ammonium carbamate and of the ammonia contained in it, comprises the step of subjecting the urea aqueous solution resulting from the aforementioned dissociation step to decomposition in a low pressure urea recovery section.
摘要翻译： 一种由氨和二氧化碳生产尿素的方法，其中在尿素合成段中得到的包含尿素，氨基甲酸铵和氨水的部分水溶液在预定介质压力下操作的处理段中解离，以回收 氨基甲酸铵和其中所含的氨的方法包括在上述解离步骤中得到的尿素水溶液在低压尿素回收段中分解的步骤。
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公开(公告)号：US20070032650A1
公开(公告)日：2007-02-08
申请号：US10595349
申请日：2004-08-10
申请人： Paolo Brunengo , Federico Zardi
发明人： Paolo Brunengo , Federico Zardi
IPC分类号： C07D251/60 , C07C273/12
CPC分类号： C07D251/60 , B01J2219/00006 , B01J2219/00092 , B01J2219/00103 , C07C273/12 , Y02P20/125 , Y02P20/582
摘要： In an integrated process for urea and melamine production, urea is produced in a urea plant (12) comprising a high pressure urea synthesis section (15) and a urea recovery section (16) for separating urea from a carbamate aqueous solution, and melamine is produced in a melamine plant (11) wherein off-gases resulting as byproducts of the melamine synthesis are discharged therefrom at a pressure of at least 2 bar and recycled to the high pressure urea synthesis section (15).
摘要翻译： 在尿素和三聚氰胺生产的综合方法中，尿素在尿素装置（12）中生产，尿素装置（12）包括高压尿素合成段（15）和用于从氨基甲酸酯水溶液中分离尿素的尿素回收段（16），三聚氰胺是 在三聚氰胺植物（11）中生产，其中作为三聚氰胺合成的副产物产生的废气在至少2巴的压力下从其中排出并再循环到高压尿素合成段（15）。
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8.发明公开公开(公告)号：US20240177076A1
公开(公告)日：2024-05-30
申请号：US18513335
申请日：2023-11-17
摘要： A method of evaluating one or more aspects of a low carbon ammonia production facility uses a digital twin implemented on a computer system. The digital twin includes a low carbon energy source component and one or more of: a hydrogen source component, a nitrogen source component, and an ammonia synthesis loop component.
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公开(公告)号：US20230406699A1
公开(公告)日：2023-12-21
申请号：US18336927
申请日：2023-06-16
申请人： Khoa Dang Nguyen , Umesh Jain , Paolo Brunengo , Elena Stylianou , Rohit Khurana
发明人： Khoa Dang Nguyen , Umesh Jain , Paolo Brunengo , Elena Stylianou , Rohit Khurana
CPC分类号： C01B3/047 , B01J19/2415 , B01J15/005 , B01J19/0013 , B01D3/32 , B01D3/007 , B01D53/1493 , B01D53/18 , C01B2203/1294 , C01B2203/0833 , C01B2203/0883 , C01B2203/0827 , C01B2203/1058 , C01B2203/1064 , B01J2219/00103 , B01J2219/00157 , B01D2257/406 , B01D2252/103 , B01D2256/16 , B01D2256/10
摘要： A process of dissociating ammonia into a dissociated hydrogen/nitrogen stream in catalyst tubes within a radiant tube furnace and an adiabatic or isothermal unit containing catalyst, along with downstream purification process units to purify the dissociated hydrogen/nitrogen stream into high purity hydrogen product.
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公开(公告)号：US20240146058A1
公开(公告)日：2024-05-02
申请号：US18491516
申请日：2023-10-20
申请人： Zhentao Feng , Satish Bantwal Baliga , Ekaterini Yamalidou , Paolo Brunengo , Rafal Bernat , Shoujun Bian
发明人： Zhentao Feng , Satish Bantwal Baliga , Ekaterini Yamalidou , Paolo Brunengo , Rafal Bernat , Shoujun Bian
CPC分类号： H02J3/004 , H02J3/381 , H02J2300/20
摘要： Advanced control and related methods for a low carbon ammonia facility having an ammonia synthesis loop that includes systems to carry out the steps of supplying energy to the facility, wherein at least a portion of the supplied energy is from a low carbon energy source, receiving a forecasted energy profile for the low carbon energy source over a time period, predicting, using an advanced regulatory controller (ARC), the operating conditions of the facility based on the forecasted energy profile for the low carbon energy source, generating, by the ARC, one or more set points to control the facility; controlling the generating of the hydrogen feed using the ARC; and producing ammonia by feeding the generated hydrogen feed to the ammonia synthesis loop in accordance with one or more set points generated by the ARC.
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