利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

20 条记录 (耗时 0.012 秒)

    SYSTEM AND METHOD FOR CRYOGENIC VAPORIZATION USING CIRCULATING COOLING LOOP
    3.
    发明申请
    SYSTEM AND METHOD FOR CRYOGENIC VAPORIZATION USING CIRCULATING COOLING LOOP 有权

    公开(公告)号：US20220290815A1

    公开(公告)日：2022-09-15

    申请号：US17516984

    申请日：2021-11-02

    申请人： Hanfei Tuo ,  Chao Liang ,  Maulik R. Shelat ,  Sang Muk Kwark ,  Seth A. Potratz

    发明人： Hanfei Tuo ,  Chao Liang ,  Maulik R. Shelat ,  Sang Muk Kwark ,  Seth A. Potratz

    IPC分类号： F17C9/02

    摘要： A cryogenic vaporization system and method are provided. A first heat exchanger heats a liquid cryogen via indirect heat exchange to output a cryogenic vapor at a first temperature. A second heat exchanger receives the cryogenic vapor at the first temperature. The second heat exchanger heats the cryogenic vapor via indirect heat exchange to a second temperature. The cryogenic vapor at the second temperature is recirculated to the first heat exchanger to heat the liquid cryogen and cool the recirculated cryogenic vapor to a third temperature. A third heat exchanger receives the cryogenic vapor at the third temperature. The third heat exchanger heats the cryogenic vapor to a fourth temperature. The third heat exchanger outputs the cryogenic vapor at the fourth temperature.

    SYSTEM AND METHOD FOR CRYOGENIC VAPORIZATION USING AMBIENT AIR VAPORIZER
    5.
    发明申请
    SYSTEM AND METHOD FOR CRYOGENIC VAPORIZATION USING AMBIENT AIR VAPORIZER 有权

    公开(公告)号：US20220290816A1

    公开(公告)日：2022-09-15

    申请号：US17517110

    申请日：2021-11-02

    申请人： Chao Liang ,  Lee J. Rosen ,  Seth A. Potratz ,  Hanfei Tuo ,  Rakesh Ranjan

    发明人： Chao Liang ,  Lee J. Rosen ,  Seth A. Potratz ,  Hanfei Tuo ,  Rakesh Ranjan

    IPC分类号： F17C9/04

    摘要： A vaporization system and control method are provided. Liquid cryogen is provided to first ambient air vaporizer (AAV) units. When an output superheated vapor temperature is less than a threshold, the liquid cryogen is provided to second AAV units. When greater than or equal to the threshold, it is determined whether the second AAV units are defrosted. When defrosted, the liquid cryogen is provided to the second AAV units. When not defrosted, it is determined whether ice has formed on the first AAV units. When not formed, it is again determined whether the superheated vapor temperature is less than the threshold. When formed, it is determined whether a current ambient condition is favorable to defrosting the second AAV units. When not favorable, the liquid cryogen is provided to the second bank of AAV units. When favorable, it is again determined whether the superheated vapor temperature is less than the threshold.

    DUAL COLUMN NITROGEN PRODUCING AIR SEPARATION UNIT WITH SPLIT KETTLE REBOIL AND INTEGRATED CONDENSER-REBOILER
    7.
    发明申请
    DUAL COLUMN NITROGEN PRODUCING AIR SEPARATION UNIT WITH SPLIT KETTLE REBOIL AND INTEGRATED CONDENSER-REBOILER 有权

    公开(公告)号：US20210381763A1

    公开(公告)日：2021-12-09

    申请号：US17234080

    申请日：2021-04-19

    申请人： Hanfei Tuo ,  Zhengrong Xu

    发明人： Hanfei Tuo ,  Zhengrong Xu

    IPC分类号： F25J3/04 ,  F25J3/02

    摘要： Enhancements to a dual column, nitrogen producing cryogenic air separation unit are provided. Such enhancements include an improved air separation cycle that uses multiple condenser-reboilers and recycles a portion of the vapor from one or more of the condenser-reboilers to the incoming feed stream and or the compressed purified air streams to yield improvements in such dual column, nitrogen producing cryogenic air separation units. The multiple condenser-reboilers preferably include an integrated condenser-reboiler arrangement comprising a heat exchanger having a set of nitrogen condensing passages, a first set and second set of boiling passages, and a phase separator.

    System and method for recovery of neon and helium from an air separation unit
    8.
    发明授权
    System and method for recovery of neon and helium from an air separation unit 有权

    公开(公告)号：US10408536B2

    公开(公告)日：2019-09-10

    申请号：US15695320

    申请日：2017-09-05

    申请人： Maulik R. Shelat ,  Hanfei Tuo ,  Nick J. Degenstein ,  James R. Dray

    发明人： Maulik R. Shelat ,  Hanfei Tuo ,  Nick J. Degenstein ,  James R. Dray

    IPC分类号： F25J3/04 ,  F25J5/00

    摘要： A system and method for neon recovery in a double column or triple column air separation unit is provided. The neon recovery system comprises a non-condensable stripping column configured to produce a liquid nitrogen-rich liquid column bottoms and a non-condensable gas containing overhead and one or more condensing units arranged to produce a crude neon vapor stream that contains greater than about 50% mole fraction of neon with the overall neon recovery exceeding 95%. In addition, there is minimal liquid nitrogen consumption and since much of the liquid nitrogen is recycled back to the lower pressure column of the air separation unit, there is minimal impact on the recovery of other products from the air separation unit.

    Condenser-reboiler system and method with perforated vent tubes
    10.
    发明授权
    Condenser-reboiler system and method with perforated vent tubes 有权
    冷凝器再沸器系统和方法与穿孔排气管

    公开(公告)号：US09488407B2

    公开(公告)日：2016-11-08

    申请号：US15153124

    申请日：2016-05-12

    申请人： Hanfei Tuo ,  Karl K. Kibler ,  Maulik R. Shelat

    发明人： Hanfei Tuo ,  Karl K. Kibler ,  Maulik R. Shelat

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04412 ,  F25J5/005 ,  F25J2200/06 ,  F25J2200/54 ,  F25J2250/02 ,  F25J2250/04 ,  F25J2250/10 ,  F25J2250/20 ,  F25J2290/32 ,  F25J2290/44 ,  F28F2265/12

    摘要： A system and method for the concurrent condensation of a nitrogen-rich vapor and vaporization of an oxygen-rich liquid in a distillation column based air separation unit is provided. The disclosed system includes a condenser-reboiler heat exchanger located between a lower pressure column and a higher pressure column and configured to condense a nitrogen-rich vapor from the higher pressure column and partially vaporize an oxygen-rich liquid from the lower pressure column. Within the condenser-reboiler heat exchanger, the nitrogen-rich vapor flows in an upward direction such that any non-condensables present in the nitrogen-rich vapor will accumulate proximate the upper portion or top of the condenser-reboiler modules where they can be easily removed through venting by means of a venting apparatus having a plurality of perforated tubes.

    摘要翻译： 提供了一种用于富氮蒸气的同时冷凝和富氧液体蒸发在基于蒸馏塔的空气分离单元中的系统和方法。 所公开的系统包括位于低压塔和较高压力塔之间的冷凝器 - 再沸器热交换器，并且构造成冷凝来自较高压力塔的富氮蒸汽并且从低压塔部分蒸发富氧液体。 在冷凝器 - 再沸器热交换器内，富氮蒸气沿向上方向流动，使得存在于富氮蒸汽中的任何不可冷凝物将在冷凝器 - 再沸器模块的上部或上部附近积聚，在那里它们可以容易地 通过具有多个穿孔管的排气装置通过排气而去除。