PROCESS AND APPARATUS FOR RECOVERING AMMONIA FROM A GAS STREAM
    56.
    发明申请
    PROCESS AND APPARATUS FOR RECOVERING AMMONIA FROM A GAS STREAM 审中-公开
    从气体流回收氨的工艺和装置

    公开(公告)号:WO2011012324A1

    公开(公告)日:2011-02-03

    申请号:PCT/EP2010/004765

    申请日:2010-07-27

    Inventor: CASARA, Paolo

    Abstract: The present invention relates to a process for the recovery of ammonia contained in a gaseous stream, said process comprising the following phases: (a) subjecting the gaseous stream containing ammonia to a washing with an aqueous washing solution having a pH lower than 7.0, with the formation of a purified gaseous stream and an aqueous solution containing an ammonium salt; (b) treating the aqueous solution containing the ammonium salt coming from phase (a) in a vertical falling film heat exchanger at a temperature from 50 to 250°C and an absolute pressure ranging from 50 KPa to 4 MPa with the formation of a regenerated washing solution and a gaseous stream comprising NH 3 and H 2 O; (c) recycling said regenerated washing solution to phase (a). The present invention also relates to equipment for effecting the above process.

    Abstract translation: 本发明涉及一种用于回收气态物流中所含氨的方法,所述方法包括以下阶段:(a)使含有氨的气流用pH低于7.0的水洗涤溶液进行洗涤, 形成纯化的气流和含有铵盐的水溶液; (b)在垂直降膜热交换器中,在50-250℃的温度和绝对压力为50KPa至4MPa的条件下处理含有来自相(a)的相的(a)的铵盐的水溶液,形成再生的 洗涤溶液和包含NH 3和H 2 O的气流; (c)将所述再生洗涤液再循环到相(a)。 本发明还涉及用于实现上述过程的设备。

    METHOD AND APPARATUS FOR PURIFICATION OF HYDRIDE GAS STREAMS
    58.
    发明申请
    METHOD AND APPARATUS FOR PURIFICATION OF HYDRIDE GAS STREAMS 审中-公开
    用于净化气体流的方法和装置

    公开(公告)号:WO00020330A1

    公开(公告)日:2000-04-13

    申请号:PCT/US1999/022338

    申请日:1999-09-24

    Abstract: A process and apparatus for the decontamination of gaseous contaminants (especially oxygen, carbon dioxide and water vapor) from hybride gases (including their lower alkyl analogs) down to /= 100 m /g, and preferably 200-800 m /g. Oxides of various metals, especially manganese or molibdenum, can be used, and mixtures of integrated oxides, or one type of oxide coated on another, may be used. The substrate is preferably retained in a hydride-gas-resistant container which is installed in a gas supply line, such as to a gas- or vapor-deposition manufacturing unit. The invention provides final decontamination for hydride gas streams intended for gas-or vapor-deposition formation of high purity LED, laser (especially blue laser), electronic, optical or similar products, and can be used in combination with upstream preliminary decontamination process and/or upstream or downstream solid particulate removal units.

    Abstract translation: 描述了从混合气体(包括它们的低级烷基类似物)到 100m 2 / g,优选200-800m 2 / g。 可以使用各种金属的氧化物,特别是锰或糠醛,并且可以使用一体化氧化物的混合物,或另一种涂覆的一种氧化物。 基板优选保持在安装在气体供给管线中的氢化物 - 气体保护容器中,例如气体或蒸气沉积制造单元。 本发明为用于气相或气相沉积形成高纯度LED,激光(特别是蓝色激光),电子,光学或类似产品的氢气气流提供最终的净化,并且可以与上游初步净化过程和/ 或上游或下游固体颗粒去除单元。

    METHOD FOR AMMONIA PRODUCTION
    59.
    发明申请
    METHOD FOR AMMONIA PRODUCTION 审中-公开
    生产氨的方法

    公开(公告)号:WO99004883A1

    公开(公告)日:1999-02-04

    申请号:PCT/US1998/014773

    申请日:1998-07-16

    Abstract: Ammonia is removed from synthesis gas, or other gaseous solvents by utilizing a sorbent to remove the ammonia followed by an in situ regeneration of the sorbent and recovery of the ammonia. The ammonia is sorbed onto the bed of sorbent, thereby producing a purified gaseous solvent. Regeneration is achieved by using at least a portion of the gaseous solvent which is then acted upon to increase its solvent capacity for the ammonia and passed through the sorbent in the opposite direction to desorb the ammonia from the sorbent to provide an increased solvent capacity gaseous solvent. The ammonia is then recovered from the increased solvent capacity gaseous solvent.

    Abstract translation: 本发明涉及使用吸附剂除去合成气或其他气体溶剂中的氨以除去铵的方法。 该过程包括原位再生吸附剂和回收铵。 铵保留在吸附剂床上,产生纯化的气体溶剂。 可以使用至少一部分气态溶剂进行再生,然后处理该气态溶剂以增加其铵溶解能力并以相反方向通过吸附剂以从氨中解吸铵。 吸附剂以获得溶解能力增加的气体溶剂。 然后从溶解能力增加的气体溶剂中回收铵。

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