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    METHOD OF MAKING A UREA PRODUCT
    5.
    发明公开
    METHOD OF MAKING A UREA PRODUCT 审中-公开
    制造尿素产品的方法

    公开(公告)号：EP3169419A1

    公开(公告)日：2017-05-24

    申请号：EP15750829.2

    申请日：2015-07-16

    申请人： Stamicarbon B.V.

    发明人： MENNEN, Johannes Henricus

    IPC分类号： B01D9/00 ,  C07C273/16 ,  C07C275/02

    摘要： Disclosed is a process for the preparation of a urea product suitable for being diluted with water so as to form an aqueous urea comprising solution for use in a unit for the reduction of NOx in combustion engine exhaust gases, also known as Diesel Exhaust Fluid (DEF) or to be used in De NOx systems of exhaust vapor from industrial furnaces. The process comprises obtaining an aqueous urea solution from or after a recovery section in a urea production process. This solution, which has a low content of impurities, is subjected to flash crystallization at a low pressure, so as to obtain a solid crystallized urea containing product, which is a free-flowing powder containing less than 0.2 wt. % water. This product is packaged under conditions such that the water content in the packaged product is maintained below 0.2 wt. %. The invention can also be used in a method of increasing the capacity of an existing urea plant.

    摘要翻译： 本发明公开了一种制备适合用水稀释的尿素产物以形成含尿素的溶液的方法，该溶液用于还原内燃机废气中的NOx的装置，也称为柴油机排气流体（DEF） ）或用于来自工业炉的排气蒸汽的DeNOx系统中。 该方法包括在尿素生产过程中从回收部分或之后获得尿素水溶液。 将这种杂质含量低的溶液在低压下进行快速结晶，从而获得固体结晶的含尿素的产物，其是含有小于0.2重量％的水的自由流动的粉末。 该产品在包装产品中的含水量保持在低于0.2重量％的条件下进行包装。 本发明还可以用于增加现有尿素装置的容量的方法中。

    METHOD AND PLANT FOR PRODUCING UREA-AMMONIUM NITRATE (UAN)
    9.
    发明公开
    METHOD AND PLANT FOR PRODUCING UREA-AMMONIUM NITRATE (UAN) 审中-公开
    用于生产硝酸尿胺（UAN）的方法和设备

    公开(公告)号：EP3224223A1

    公开(公告)日：2017-10-04

    申请号：EP15832900.3

    申请日：2015-11-26

    申请人： Stamicarbon B.V.

    发明人： MENNEN, Johannes Henricus ,  BUITINK, Fredericus Henricus Maria ,  ROOS, Willem Frederik

    IPC分类号： C05C1/00 ,  C05C9/00

    CPC分类号： C01C1/185 ,  B01J10/007 ,  B01J19/002 ,  B01J2219/00024 ,  B01J2219/0004 ,  C05C1/00 ,  C05C9/00

    摘要： The invention provides a method and a plant for producing urea ammonium nitrate (UAN). The method involves the use of a condensation section, optionally in combination with a medium pressure decomposition section, between the dissociation and neutralization sections. The invention further provides a method of modifying an existing UAN plant. The advantages of the process of the invention are that the emission of CO2 can be reduced, the plant capacity can be increased and the high capital expenditure needed for CO2 compression equipment is reduced.

    摘要翻译： 本发明提供了生产尿素硝酸铵（UAN）的方法和设备。 该方法涉及在解离和中和段之间使用冷凝段，任选地与中压分解段组合。 本发明还提供了一种修改现有UAN设备的方法。 本发明方法的优点在于可以减少二氧化碳的排放，增加设备容量并降低二氧化碳压缩设备所需的高资本支出。

    ZERO EMISSION UREA PROCESS AND PLANT
    10.
    发明公开
    ZERO EMISSION UREA PROCESS AND PLANT 有权
    排放量发生变化

    公开(公告)号：EP2691365A1

    公开(公告)日：2014-02-05

    申请号：EP12712413.9

    申请日：2012-03-30

    申请人： Stamicarbon B.V.

    发明人： MENNEN, Johannes Henricus ,  CUCCHIELLA, Barbara

    IPC分类号： C07C273/04 ,  B01J19/24

    CPC分类号： C07C273/04 ,  B01J19/24

    摘要： 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.

    摘要翻译： 公开了用于生产尿素的方法，其允许通常由这种方法产生的氨的连续排放的显着降低甚至降低至零。 根据本发明的优选实施方案，来自二氧化碳和氨的脲形成反应在不需要氧钝化的合成部分中进行。 由于不存在氧气，可以从合成部分产生富氢气流，其可以在焚烧炉中用作燃料。 在焚烧炉中，来自尿素生产过程的含氨气流被燃烧。