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    ARGON CONDENSATION SYSTEM AND METHOD
    2.
    发明申请
    ARGON CONDENSATION SYSTEM AND METHOD 审中-公开
    ARGON冷凝系统和方法

    公开(公告)号：US20160003539A1

    公开(公告)日：2016-01-07

    申请号：US14754801

    申请日：2015-06-30

    Applicant: James R. Handley ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat ,  Steven R. Falta

    Inventor： James R. Handley ,  Brian S. Powell ,  Henry E. Howard ,  Vijayaraghavan S. Chakravarthy ,  Maulik R. Shelat ,  Steven R. Falta

    IPC: F25J3/04

    CPC classification number: F25J3/04672 ,  F25J3/0285 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04715 ,  F25J3/048 ,  F25J3/04848 ,  F25J2250/02 ,  F25J2250/20

    Abstract: An argon reflux condensation system and method in which a plurality of once-through condensers are connected to an argon column of an air separation plant to condense argon-rich vapor streams for production of reflux to the argon column. Condensation of the argon-rich vapor streams is brought about through indirect heat exchange with crude liquid oxygen streams that partially vaporize and are introduced into a lower pressure column of the plant for further refinement. The flow rate of the crude liquid oxygen streams are sensed and controlled at locations in the air separation plant where the crude liquid oxygen is in a liquid state and in proportion to the size of the once-through heat exchangers. Prior to flowing into the once-through condensers, the partially vaporized crude oxygen stream enters a phase separator which separates the crude oxygen vapor from the crude liquid oxygen. The separated crude oxygen vapor bypasses the once-through condensers and is mixed with the vaporized oxygen stream that exits the one-through condensers. Feed stream flow rate to the argon column is controlled in response to air flow rate to the plant and product flow rate is controlled in response to the feed stream flow rate to the argon column.

    Abstract translation: 一种氩回流冷凝系统和方法，其中多个直流冷凝器连接到空气分离设备的氩塔，以冷凝富氩蒸气流以产生回流到氩塔。 通过与部分蒸发的粗液氧气流进行间接热交换并将其引入工厂的低压塔以进一步改进而产生富氩蒸气流的冷凝。 粗液氧流的流量在空气分离装置中的位置处被检测和控制，其中粗液氧处于液态并且与直流热交换器的尺寸成比例。 在流入直流冷凝器之前，部分汽化的粗氧气流进入将粗氧气与粗液氧分离的相分离器。 分离的粗氧气蒸汽绕过直流冷凝器，并与离开单向冷凝器的蒸发的氧气流混合。 响应于到达工厂的空气流速来控制进入氩塔的进料流量，并响应于进入氩塔的进料流流量来控制产物流速。

    Process for recovery, purification, and recycle of argon
    5.
    发明授权
    Process for recovery, purification, and recycle of argon 失效
    回收，纯化和回收氩气的方法

    公开(公告)号：US06838066B2

    公开(公告)日：2005-01-04

    申请号：US10243153

    申请日：2002-09-13

    Applicant: Madhukar Bhaskara Rao

    Inventor： Madhukar Bhaskara Rao

    IPC: B01D53/00 ,  B01D53/86 ,  F25J3/02 ,  C01B23/00 ,  F25J3/08 ,  F25J5/00

    CPC classification number: F25J3/08 ,  B01D53/002 ,  B01D53/864 ,  B01D53/8671 ,  F25J3/0285 ,  F25J2205/40 ,  F25J2205/82 ,  F25J2215/58 ,  Y10S62/924

    Abstract: A method and system for the purification and recycle of impure argon is disclosed. The system and process of the present invention can produce very high purity argon, i.e., about 1 ppb or less of impurities. In one embodiment of the invention, a cryogenic separation apparatus is used to remove the nitrogen, hydrocarbon, and hydrogen impurities from the argon stream. A catalyst bed is then operated at ambient temperature to remove hydrogen, oxygen, and carbon monoxide impurities to provide the purified argon product. Also disclosed is a method to minimize to loss of the purified argon product during regeneration of the catalyst bed.

    Abstract translation: 公开了用于净化和循环不纯的氩的方法和系统。 本发明的系统和方法可以产生非常高纯度的氩，即约1ppb或更少的杂质。 在本发明的一个实施方案中，使用低温分离装置从氩气流中除去氮，烃和氢杂质。 然后在环境温度下操作催化剂床以除去氢气，氧气和一氧化碳杂质，以提供纯化的氩气产物。 还公开了一种使催化剂床再生期间纯化氩产物损失最小化的方法。

    High efficiency nitrogen rejection unit
    6.
    发明授权
    High efficiency nitrogen rejection unit 失效
    高效氮排除装置

    公开(公告)号：US5375422A

    公开(公告)日：1994-12-27

    申请号：US126412

    申请日：1993-09-27

    Applicant: Rayburn C. Butts

    Inventor： Rayburn C. Butts

    IPC: F25J3/00 ,  F25J3/02

    CPC classification number: F25J3/0209 ,  F25J3/0233 ,  F25J3/0257 ,  F25J3/0285 ,  F25J3/029 ,  F25J5/002 ,  F25J2200/02 ,  F25J2200/50 ,  F25J2200/80 ,  F25J2270/02 ,  F25J2280/02 ,  Y10S62/905 ,  Y10S62/927

    Abstract: A process for separating nitrogen and hydrocarbons from a mixture of gases by splitting the mixture into a plurality of separate streams and throttling the flow of each stream to achieve a selected variable flow rate therebetween. The plurality of separate streams are individually cooled by exchanging heat with a plurality of different process streams. The cooled streams are combined and expand into a separation column where nitrogen ascends the column and exits as a process stream while hydrocarbon descends the column to a reboiler thereof and exits as a process stream. The reboiler is used for cooling one of the separate streams. The hydrocarbon from the bottom of the column is expanded and used to cool a reflux condenser located inside the column and thereafter cools another of the streams before it is discharged from the process. The nitrogen process stream is used to cool another of the separated streams, and then is discharged from the process.

    Abstract translation: 通过将混合物分成多个单独的流分离并节流每个流的流以在其间实现选定的可变流速，从氮气和碳氢化合物的混合物中分离出氮和碳氢化合物的方法。 多个单独的流通过与多个不同的处理流交换热来单独冷却。 将冷却的流合并并膨胀成分离塔，其中氮气升高到塔并作为工艺流出口，同时烃将塔下降到其再沸器并作为工艺流出口。 再沸器用于冷却单独流中的一个。 来自塔底的烃被膨胀并用于冷却位于塔内的回流冷凝器，然后冷却另一个物流，然后从该方法中排出。 氮气流用于冷却另一个分离的物流，然后从该过程中排出。

    Nitrogen rejection unit
    8.
    发明授权
    Nitrogen rejection unit 失效
    排氮单元

    公开(公告)号：US5141544A

    公开(公告)日：1992-08-25

    申请号：US682287

    申请日：1991-04-09

    Applicant: Rayburn C. Butts

    Inventor： Rayburn C. Butts

    IPC: F25J3/00 ,  F25J3/02

    CPC classification number: F25J3/029 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0257 ,  F25J3/0285 ,  F25J2200/02 ,  F25J2200/80 ,  F25J2205/04 ,  F25J2210/06 ,  F25J2280/02 ,  Y10S62/927

    Abstract: A process for separating nitrogen and hydrocarbons from a mixture of gases by splitting the mixture into a plurality of separate streams and throttling the flow of each stream to achieve a selected variable flow rate therebetween. The plurality of separate streams and individually cooled by exchanging heat with a plurality of different process streams, then the cooled separate streams are combined, cooled by another process stream, and again cooled by expansion. The cooled combined streams then enter a separation column where nitrogen ascends the column and exits as a process stream while hydrocarbon descends the column to a reboiler therof and exits as another process stream. The reboiler is used for cooling one of the separate streams and is therefore one of the process streams. The hydrocarbon from the column is expanded and used for the processe stream that first cools the combined streams and thereafter cools another of the separate streams and then is discharged from the process. The nitrogen process stream is expanded and used to cool another of the separate streams, and then is discharged from the process. The flow rates are controlled to maintain the throttling of the split streams and the pressure drop across the expansion valves within an optimum range of predetermined values.

    Abstract translation: 通过将混合物分成多个单独的流分离并节流每个流的流以在其间实现选定的可变流速，从氮气和碳氢化合物的混合物中分离出氮和碳氢化合物的方法。 多个单独的流并且通过与多个不同的工艺流交换热而单独冷却，然后将冷却的分离的流组合，由另一个工艺流冷却，并再次通过膨胀冷却。 冷却的组合物流然后进入分离塔，其中氮气升高到塔并作为工艺流出口，同时烃下降到再沸器基础上并作为另外的工艺流出口。 再沸器用于冷却单独流中的一个，因此是工艺流之一。 将来自塔的烃膨胀并用于首先冷却组合料流的工艺流，然后冷却另外的单独的料流，然后从该方法中排出。 氮气流被膨胀并用于冷却另一个分离的流，然后从该过程中排出。 控制流速以保持分流流的节流以及膨胀阀上的压降在预定值的最佳范围内。

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