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    SYSTEMS AND METHODS FOR HYDROGEN LIQUEFACTION
    1.
    发明公开
    SYSTEMS AND METHODS FOR HYDROGEN LIQUEFACTION 审中-公开

    公开(公告)号：US20240361071A1

    公开(公告)日：2024-10-31

    申请号：US18309334

    申请日：2023-04-28

    申请人： COSMODYNE, LLC

    发明人： John Jefferson ODELL ,  Irina DEAN

    IPC分类号： F25J1/02 ,  F25J1/00

    CPC分类号： F25J1/0288 ,  F25J1/001 ,  F25J1/004 ,  F25J1/005 ,  F25J2205/82 ,  F25J2245/02 ,  F25J2270/14

    摘要： A hydrogen liquefaction system that utilizes two separate compression services, one controlled via pressure and the other via capacitance, to maintain the rotating equipment at its design point. The system also employs an intermediate flash drum to capture boil off gas and a catalyst bed to convert para-hydrogen into ortho-hydrogen. Changing pressure levels within the turbo expander loop are used to transfer hydrogen from the expander loop into the “condensate” or “feed” streams, while maintaining the “condensate” stream at a constant pressure. The system is capable of efficiently producing high-purity liquid hydrogen at a low cost, making it a valuable tool in industries such as fuel cells, energy storage, and aerospace.

    DEVICE FOR LIQUEFYING GASEOUS DIHYDROGEN FOR OFFSHORE OR ONSHORE STRUCTURE
    2.
    发明公开
    DEVICE FOR LIQUEFYING GASEOUS DIHYDROGEN FOR OFFSHORE OR ONSHORE STRUCTURE 审中-公开

    公开(公告)号：US20240200866A1

    公开(公告)日：2024-06-20

    申请号：US18555975

    申请日：2022-04-14

    申请人： GAZTRANSPORT ET TECHNIGAZ

    发明人： Bernard AOUN ,  Pavel BORISEVICH

    IPC分类号： F25J1/00 ,  F25J1/02

    CPC分类号： F25J1/001 ,  F25J1/023 ,  F25J1/0277 ,  F25J2205/82

    摘要： A device for liquefying gaseous dihydrogen resulting from the evaporation of dihydrogen in the liquid state stored in a tank includes: a heat exchanger, a feed branch configured to convey a portion of the gaseous dihydrogen from the tank to a gaseous dihydrogen consumer, a part of the feed branch passing through the heat exchanger inside of which is placed a catalyst that is involved in the conversion of the parahydrogen to orthohydrogen, and a cooling branch including a compression member; a portion of the cooling branch passing through the heat exchanger exchanges heat with the first pass in order to liquefy a portion of the dihydrogen circulating in the cooling branch and to heat the dihydrogen circulating in the feed branch.

    INERT GAS RECOVERY AND RECYCLE FOR SILICON CRYSTAL GROWTH PULLING PROCESS
    6.
    发明申请
    INERT GAS RECOVERY AND RECYCLE FOR SILICON CRYSTAL GROWTH PULLING PROCESS 有权
    用于硅晶体生长拉拔过程的气体回收和回收

    公开(公告)号：US20130149226A1

    公开(公告)日：2013-06-13

    申请号：US13693673

    申请日：2012-12-04

    申请人： Lingyan Song ,  Lloyd Anthony Brown

    发明人： Lingyan Song ,  Lloyd Anthony Brown

    IPC分类号： C01B23/00

    CPC分类号： C01B23/0094 ,  C01B23/0021 ,  C01B2210/0004 ,  C01B2210/0034 ,  C01B2210/0045 ,  C01B2210/005 ,  C01B2210/0053 ,  C01B2210/007 ,  C01B2210/0098 ,  C30B15/00 ,  C30B15/20 ,  C30B29/06 ,  F25J3/08 ,  F25J2200/02 ,  F25J2205/40 ,  F25J2205/50 ,  F25J2205/82 ,  F25J2215/30 ,  F25J2215/58 ,  F25J2245/02 ,  F25J2245/58 ,  Y02C10/12

    摘要： This invention is directed to a method for recovering, purifying and recycling an inert gas on a continual basis in connection with a silicon crystal pulling process. Silicon oxide impurities generated during the crystal growth process are completely oxidized by in-situ oxidation with a regulated amount of an oxidizing source gas mixture to form silicon dioxide impurities, which can be removed by a particulate removal device. The particulate-free effluent enters a purification unit to remove the remaining impurities. The inert gas emerging from the purification unit can be fed back into the crystal puller apparatus and/or mixed with the oxidizing source gas mixture. As a result, the ability to increase silicon crystal throughput, quality and at the same time reduce the costs associated with recycling the inert gas can be achieved.

    摘要翻译： 本发明涉及一种连续地回收，净化和再循环惰性气体的方法，其结合硅晶体拉制工艺。 在晶体生长过程中产生的氧化硅杂质通过用调节量的氧化源气体混合物进行原位氧化而完全氧化，形成二氧化硅杂质，其可通过微粒去除装置除去。 无颗粒流出物进入净化单元以除去剩余的杂质。 从净化单元排出的惰性气体可以反馈到晶体拉出装置中和/或与氧化源气体混合物混合。 结果，可以实现提高硅晶体产量，质量并同时降低与惰性气体再循环相关的成本的能力。

    HYDROGEN LIQUEFACTION METHOD AND LIQUEFIER
    7.
    发明申请
    HYDROGEN LIQUEFACTION METHOD AND LIQUEFIER 失效
    氢化液化方法和液化器

    公开(公告)号：US20100272634A1

    公开(公告)日：2010-10-28

    申请号：US12428643

    申请日：2009-04-23

    申请人： Joseph Michael Schwartz ,  Raymond Francis Drnevich ,  Philip Alexander Barrett ,  Bernard Thomas Neu

    发明人： Joseph Michael Schwartz ,  Raymond Francis Drnevich ,  Philip Alexander Barrett ,  Bernard Thomas Neu

    IPC分类号： C01B3/02 ,  B01J10/00

    CPC分类号： C01B3/0089 ,  F25J1/001 ,  F25J1/0037 ,  F25J1/0045 ,  F25J1/005 ,  F25J1/0052 ,  F25J1/0072 ,  F25J1/0208 ,  F25J2205/60 ,  F25J2205/82 ,  F25J2220/02 ,  F25J2270/06

    摘要： The present invention provides a method of liquefying a hydrogen feed stream and a liquefier for carrying out such a method in which ortho-species of hydrogen contained in a hydrogen feed stream is converted to the para-species in higher and lower temperature catalytic converters. An adsorption unit, located between the higher and lower temperature catalytic converters, adsorbs a portion of the ortho content of the feed stream. The adsorbed portion is desorbed during regeneration of an adsorbent bed of the adsorption unit and is recirculated back for treatment in the higher temperature catalytic converter to reduce the degree to which the ortho-species are converted to the para-species in the lower temperature catalytic converter and at lower temperatures.

    摘要翻译： 本发明提供了一种液化氢气进料流和液化器的方法，用于实施这样的方法，其中氢气进料流中所含的氢的邻位在较高和较低温度的催化转化器中转化为对位物质。 位于较高和较低温度的催化转化器之间的吸附单元吸附进料流的一部分邻位含量。 吸附部分在吸附单元的吸附剂床的再生过程中被解吸，并被再循环回用于在较高温度的催化转化器中进行处理以降低邻近物质在低温催化转化器中转化为对位物质的程度 并在较低的温度。

    Process for recovery, purification, and recycle of argon
    10.
    发明申请
    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：US20040052708A1

    公开(公告)日：2004-03-18

    申请号：US10243153

    申请日：2002-09-13

    发明人： Madhukar Bhaskara Rao

    IPC分类号： B01D053/66

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

    摘要： 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.

    摘要翻译： 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。