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公开(公告)号：CA2871848C
公开(公告)日：2018-02-20
申请号：CA2871848
申请日：2013-05-02
Applicant: STAMICARBON
Inventor： SCHEERDER ALEXANDER ALEIDA ANTONIUS
IPC: F28F9/18 , B01J8/00 , B23K31/02 , C07C273/04 , F28F19/06
Abstract: The present application relates to a method of manufacturing a tube sheet (7) and heat exchanger assembly for a pool reactor or pool condenser for use in the production of urea from ammonia and carbon dioxide, wherein the method comprises manufacturing of the tube sheet (7) from a carbon steel material grade and providing said tube sheet (7) with corrosion protective layers (8, 9) of an austenitic- ferritic duplex stainless steel grade, wherein the heat exchanger comprises at least one U-shaped tube (13) of an austenitic-ferritic duplex stainless steel grade, the method further comprises inserting at least two sleeves (11) of an austenitic-ferritic duplex stainless steel grade through the tube sheet (7) such that both ends of the sleeve (11) extend in a direction away from the tube sheet (7), the method further comprises connecting the sleeves (11), at least the opposing ends thereof, to at least the protective layers (8,9) of the tube sheet (7) and finally, connecting both ends of the at least one U-shaped tube (13) to the respective sleeves (11).
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Patent Agency Ranking
公开(公告)号：AU2016295940A1
公开(公告)日：2018-02-15
申请号：AU2016295940
申请日：2016-07-20
Applicant: STAMICARBON
Inventor： GULLBERG DANIEL , HARALDSSON CHRISTINA , WILSON ANDERS , SCHEERDER ALEXANDER ALEIDA ANTONIUS , OFEI KIRK ANGUAH
IPC: C21D8/00 , B01D1/06 , B01J19/02 , C07C273/04 , C21D6/00 , C21D9/08 , C22C33/04 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/58 , F28F21/08
Abstract: The present disclosure relates to a corrosion resistant duplex stainless steel (ferritic austenitic alloy) which is suitable for use in a plant for the production of urea; and uses thereof. The disclosure also relates to objects made of said duplex stainless steel. Furthermore, the present disclosure also relates to a method for the production of urea and to a plant for the production of urea comprising one or more parts made from said duplex stainless steel, and to a method of modifying an existing plant for the production of urea.
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33.发明专利
公开(公告)号：AU2014370512A1
公开(公告)日：2016-08-04
申请号：AU2014370512
申请日：2014-12-23
Applicant: STAMICARBON
Inventor： LARSSON LINN , GULLBERG DANIEL , KIVISAKK ULF , OSTLUND MARTIN , SCHEERDER ALEXANDER ALEIDA ANTONIUS
Abstract: Disclosed is a Hot Isostatic Pressed ferritic-austenitic steel alloy, as well objects thereof. The elementary composition of the alloy comprises, in percentages by weight: C 0 - 0.05; Si 0 - 0.8; Mn 0 - 4.0; Cr more than 29 - 35; Ni 3.0 - 10; Mo 0 - 4.0; N 0.30 - 0.55; Cu 0 – 0.8; W 0 - 3.0; S 0 - 0.03; Ce 0 – 0.2; the balance being Fe and unavoidable impurities. The objects can be particularly useful in making components for a urea production plant that require processing such as machining or drilling. A preferred use is in making, or replacing, liquid distributors as used in a stripper as is typically present in the high-pressure synthesis section of a urea plant.
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34.发明专利
公开(公告)号：AP201609298A0
公开(公告)日：2016-06-30
申请号：AP201609298
申请日：2014-12-23
Applicant: STAMICARBON
Inventor： LARSSON LINN , GULLBERG DANIEL , KIVISÄKK ULF , ÖSTLUND MARTIN , SCHEERDER ALEXANDER ALEIDA ANTONIUS
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公开(公告)号：MX2014013382A
公开(公告)日：2015-08-07
申请号：MX2014013382
申请日：2013-05-02
Applicant: STAMICARBON
Inventor： SCHEERDER ALEXANDER ALEIDA ANTONIUS
Abstract: Método de fabricación de un conjunto de placa de tubos e intercambiador de calor para un reactor de piscina o condensador de piscina para usar en la producción de urea a partir de amoníaco y dióxido de carbono, en donde el método comprende la fabricación de la placa de tubos a partir de un material de grado de acero al carbono y proveer dicha placa de tubos con capas protectoras contra la corrosión de grado de acero inoxidable dúplex austenítico ferrítico, en donde el intercambiador de calor comprende al menos un tubo en forma de U de grado de acero inoxidable dúplex austenítico ferrítico, donde el método además comprende insertar al menos dos manguitos de grado de acero inoxidable dúplex austenítico ferrítico a través de la placa de tubos de modo tal que ambos extremos del manguito se extienden en una dirección contraria a la placa de tubos, donde el método además comprende conectar los manguitos, al menos los extremos enfrentados de los mismos, a por lo menos las capas protectoras de la placa de tubos y finalmente conectar ambos extremos del por lo menos un tubo en forma de U a los respectivos manguitos.
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公开(公告)号：AP201408081A0
公开(公告)日：2014-11-30
申请号：AP201408081
申请日：2013-05-02
Applicant: STAMICARBON
Inventor： SCHEERDER ALEXANDER ALEIDA ANTONIUS
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