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公开(公告)号：EA027675B1
公开(公告)日：2017-08-31
申请号：EA201401210
申请日：2013-05-02
Applicant: STAMICARBON
Inventor： MENNEN JOHANNES HENRICUS , MEESSEN JOZEF HUBERT
IPC: C07C273/04
Abstract: Изобретениеотноситсяк установкедляпроизводствамочевины. Установкасодержиттрадиционныесекциисинтезаи извлечения, выпариванияи конденсации, конечнойобработкимочевиныи очисткиотпыли. Согласноизобретениюустановкатакжесодержитдополнительныйрециркуляционныйконтурвыпариванияи конденсации, содержащийдополнительнуюсекциювыпаривания, расположеннуюнижепопотокуотсекцииочисткиотпылии сообщающуюсяпотекучейсредес секциейконечнойобработки, приэтомдополнительнаясекциявыпариванияимеетлиниюподачигазак дополнительнойсекцииконденсации, котораясообщаетсяпотекучейсредес секциейочисткиотпыли. Данныйрециркуляционныйконтурприводитк болееблагоприятномуэнергопотреблениюустановки. Изобретениетакжеотноситсяк соответствующемуспособуполучениямочевины.
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公开(公告)号：CA2774246C
公开(公告)日：2016-06-28
申请号：CA2774246
申请日：2010-08-10
Applicant: STAMICARBON
Inventor： MEESSEN JOZEF HUBERT , ORFANIDIS PANTELIS
IPC: C07C273/16 , C01C1/12 , C05C3/00 , C05C9/00 , C05G3/00
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.
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公开(公告)号：CA2724558C
公开(公告)日：2016-03-22
申请号：CA2724558
申请日：2009-05-19
Applicant: STAMICARBON
IPC: C07C273/00 , 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.
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公开(公告)号：AP201408082A0
公开(公告)日：2014-11-30
申请号：AP201408082
申请日：2013-05-02
Applicant: STAMICARBON
IPC: C07C273/04
CPC classification number: C07C273/04 , B01J10/00 , B01J19/0013 , B01J2219/00051 , Y02P20/142
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公开(公告)号：AP2014008082A0
公开(公告)日：2014-11-30
申请号：AP2014008082
申请日：2013-05-02
Applicant: STAMICARBON
IPC: C07C273/04
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Patent Agency Ranking
公开(公告)号：AU2013257378A1
公开(公告)日：2014-11-13
申请号：AU2013257378
申请日：2013-05-02
Applicant: STAMICARBON
IPC: C07C273/04
Abstract: Method for the production of urea from ammonia and carbon dioxide in a urea plant containing a high-pressure synthesis section with a horizontal pool condenser, wherein the method comprises exchanging heat from a high pressure process medium received in a shell section of the pool condenser to a medium pressure urea containing solution received in a first heat exchanging section provided in the pool condenser to at least decompose ammonium carbamate into NH
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公开(公告)号：CA2871724A1
公开(公告)日：2013-11-07
申请号：CA2871724
申请日：2013-05-02
Applicant: STAMICARBON
IPC: C07C273/04
Abstract: Method for the production of urea from ammonia and carbon dioxide in a urea plant containing a high-pressure synthesis section with a horizontal pool condenser, wherein the method comprises exchanging heat from a high pressure process medium received in a shell section of the pool condenser to a medium pressure urea containing solution received in a first heat exchanging section provided in the pool condenser to at least decompose ammonium carbamate into NH3 and CO2, wherein the method further comprises exchanging heat from the high pressure process medium to a low pressure steam condensate received in a second heat exchanging section provided in the pool condenser to produce low pressure steam. The invention also relates to an apparatus for the production of urea from ammonia and carbon dioxide.
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公开(公告)号：AU2009249693B2
公开(公告)日：2013-02-21
申请号：AU2009249693
申请日：2009-05-19
Applicant: STAMICARBON
IPC: 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.
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公开(公告)号：MX2011012331A
公开(公告)日：2012-02-13
申请号：MX2011012331
申请日：2010-05-11
Applicant: STAMICARBON
Abstract: La presente invención se refiere a un proceso para la producción de gránulos a partir de una composición líquida con una producción de polvo reducida, el proceso comprende las etapas de: aplicar la composición líquida sobre las partículas sólidas que son mantenidas en un movimiento continuo por una corriente gaseosa en una zona de granulación de un granulador oblongo, por lo cual se deposita y solidifica la composición líquida alrededor de las partículas sólidas para incrementar el tamaño de las partículas y por esto formar partículas sólidas crecientes; descargar una corriente de las partículas sólidas crecientes desde la zona de granulación, dividir, en un aparato clasificador del tamaño, la corriente de las partículas sólidas crecientes en corrientes individuales basado en el tamaño de las partículas sólidas crecientes para producir por esto corrientes de partículas sólidas crecientes subdimensionadas, sobredimensionadas y del tamaño deseado; transferir la corriente de las partículas sólidas crecientes sobredimensionadas a un aparato reductor del tamaño; triturar la corriente de las partículas sólidas crecientes sobredimensionadas en el aparato reductor del tamaño, por lo cual se reduce el tamaño de partícula de las partículas sólidas crecientes sobredimensionadas y por esto producir una corriente de partículas sólidas trituradas; en donde la corriente de las partículas sólidas trituradas es introducida en el granulador en un lugar abajo del sitio en donde la corriente gaseosa deja el granulador.
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公开(公告)号：AU2003253503B2
公开(公告)日：2009-08-20
申请号：AU2003253503
申请日：2003-07-10
Applicant: STAMICARBON
Inventor： TJIOE TJAY TJIEN , MEESSEN JOZEF HUBERT
IPC: 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.
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