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    • 52. 发明申请
    • UREA PRODUCTION WITH CONTROLLED BIURET
    • 尿素生产与控制小瓶
    • WO2017192032A1
    • 2017-11-09
    • PCT/NL2017/050271
    • 2017-04-28
    • STAMICARBON B.V.
    • MOSTERT, Eelco
    • B01J19/00C07C273/04C07C273/16B01B1/00
    • Disclosed is a novel method of controlling the formation of biuret in urea production. This is accomplished by reducing or preventing the formation of biuret in a concentration section, particularly in one or more concentrators or evaporators. The method comprises controlling the residence time of a urea aqueous stream treated in such concentration section in a manner independently of the volume flow per time interval of said stream into said concentration section. The residence time can be controlled, e.g., by providing the concentration section with an adjustable volume or by adding a gas to the urea stream to be treated. A combination of such measures can also be applied.
    • 公开了一种控制尿素生产中缩二脲形成的新方法。 这是通过减少或防止浓缩部分中缩二脲的形成来实现的,特别是在一个或多个浓缩器或蒸发器中。 该方法包括以独立于所述流进入所述浓缩段的每时间间隔的体积流量的方式控制在该浓缩段中处理过的尿素水流的停留时间。 停留时间可以通过例如提供具有可调体积的浓缩部分或通过向要处理的尿素流添加气体来控制。 这些措施的组合也可以应用。
    • 53. 发明申请
    • UREA AMMONIUM NITRATE PRODUCTION COMPRISING CONDENSATION
    • 包含缩合的尿素硝酸铵生产
    • WO2017111588A1
    • 2017-06-29
    • PCT/NL2016/050905
    • 2016-12-21
    • STAMICARBON B.V.
    • PUCI, Giusy ElisaDOBREE, Joey
    • B01D53/56C05C1/00
    • C05C1/00B01D53/002B01D2251/504B01D2257/406C07C273/04C05C9/02
    • The invention relates to a process for the production of urea ammonium nitrate, a system and a method of modifying a plant. The process comprises subjecting ammonia-containing off-gas resulting from the production of ammonium nitrate (AN off-gas) to condensation under acidic conditions so as to form an acidic condensate, and using at least part of the acidic condensate as an acidic scrubbing liquid in a finishing treatment section having a gas inlet in fluid communication with a gas outlet of a finishing section of a urea production unit, wherein the finishing section is adapted to solidify urea liquid, and wherein said finishing treatment section is adapted to subject ammonia-containing off-gas of the finishing section to treatment with an acidic scrubbing liquid.
    • 本发明涉及生产尿素硝酸铵的方法,系统和修饰植物的方法。 该方法包括使由产生硝酸铵(AN废气)产生的含氨废气在酸性条件下冷凝以形成酸性冷凝物,并且使用至少部分酸性冷凝物作为酸性洗涤液 在具有与尿素生产单元的精整部分的气体出口流体连通的气体入口的精整处理部分中,其中精整部分适于固化尿素液体,并且其中所述精整处理部分适于使含氨 精整部分的废气用酸性洗涤液处理。
    • 60. 发明申请
    • STEAM REFORMER FURNACE, AND METHOD FOR THE SAME
    • 蒸汽改性炉及其相同方法
    • WO2013147598A1
    • 2013-10-03
    • PCT/NL2013/050223
    • 2013-03-26
    • STAMICARBON B.V.
    • VOLPI, PaolaMORICO, BarbaraMOSCA, LorenaGUAZZOTTI, CristinaPROSPERI, FabioIAQUANIELLO, Gaetano
    • C01B3/38B01J8/02B01J8/06
    • C01B3/38B01J7/00B01J8/0257B01J2208/00221B01J2208/00309B01J2208/00504B01J2208/0053B01J2219/18C01B3/384C01B2203/0233C01B2203/0811C01B2203/1235
    • A reformer furnace (1), comprising: at least one triple conduit assembly (200), including a flue gas conduit (220) enclosing a reaction conduit (240) enclosing a product gas conduit (260), wherein: the reaction conduit (240) extends between a lower end (244) defining a reaction gas inlet (245), and a closed upper end (242); the product gas conduit (260) extends between an upper end (262) defining a product gas inlet (263), and a lower end (264) defining a product gas outlet (265); the flue gas conduit (220) extends between an upper end (222) defining a flue gas inlet (223), and a lower end (224) defining a flue gas outlet (225); and an annulus (250) between the reaction conduit (240) and the product gas conduit (260) comprises a catalyst (252); a combustion chamber (100) that encloses an approximate upper half (226, 246, 266) of the at least one triple conduit assembly (200) while an approximate lower half (228, 248, 268) thereof resides outside of and below the combustion chamber, and that includes at least one burner (110), disposed inside of the combustion chamber and outside of the flue gas conduit (220), such that the approximate upper half (226) of the flue gas conduit substantially shields the reaction conduit (240) from direct burner flame heat radiation and impingement.
    • 一种重整炉(1),包括:至少一个三重管道组件(200),包括封闭产品气体管道(260)的反应管道(240)的烟道气导管(220),其中:反应管道(240) )在限定反应气体入口(245)的下端(244)和封闭的上端(242)之间延伸; 产品气体管道(260)在限定产品气体入口(263)的上端(262)和限定产品气体出口(265)的下端(264)之间延伸; 所述烟道气管道(220)在限定烟道气入口(223)的上端(222)和限定出烟气出口(225)的下端(224)之间延伸; 并且所述反应管道(240)和所述产物气体管道(260)之间的环(250)包括催化剂(252); 燃烧室(100),其围绕所述至少一个三重管道组件(200)的大致上半部(226,246,266),同时其大致下半部(228,248,268)位于燃烧室外面和下方 并且其包括设置在燃烧室内部和烟道气管道(220)外部的至少一个燃烧器(110),使得烟道气管道的大致上半部(226)基本上屏蔽反应管道 240)从直接燃烧器火焰的热辐射和冲击。