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1. 发明公开

US20240230218A1 SYSTEM AND METHOD FOR DENSIFICATION OF LIQUID OXYGEN 审中-公开
公开(公告)号：US20240230218A1
公开(公告)日：2024-07-11
申请号：US18402103
申请日：2024-01-02
申请人： Sean M. Kelly , Brian R. Kromer , Seth A. Potratz
发明人： Sean M. Kelly , Brian R. Kromer , Seth A. Potratz
IPC分类号： F25J1/00 , F25J1/02
CPC分类号： F25J1/0017 , F25J1/0015 , F25J1/0055 , F25J1/0057 , F25J1/023 , F25J2220/50 , F25J2235/42 , F25J2235/50 , F25J2270/06 , F25J2290/60
摘要： A system and method for the production and supply of a densified, liquid oxidant to a space vehicle launch facility is provided. A stream of liquid oxygen taken from a co-located, liquid producing air separation unit is densified in a two refrigeration stage, integrated densification system. The first refrigeration stage is a nitrogen based reverse Brayton cycle refrigeration cycle that provides refrigeration to the second refrigeration stage. The second refrigeration stage is a helium and/or neon comprising refrigerant loop that densifies the liquid oxygen to a temperature between about 70 Kelvin and 57 Kelvin. The integrated densification system may also be configured to densify liquid methane or other propellants used in space vehicle launches.

2. 发明申请

US20180142949A1 PARTIAL OPEN-LOOP NITROGEN REFRIGERATION PROCESS AND SYSTEM FOR AN OIL OR GAS PRODUCTION OPERATION 审中-公开
公开(公告)号：US20180142949A1
公开(公告)日：2018-05-24
申请号：US15815322
申请日：2017-11-16
申请人： Grant Nevison , Josh Thompson
发明人： Grant Nevison , Josh Thompson
IPC分类号： F25J1/02 , F25J1/00
CPC分类号： F25J1/0221 , F25J1/0022 , F25J1/005 , F25J1/0052 , F25J1/0072 , F25J1/0204 , F25J1/0265 , F25J3/061 , F25J3/0635 , F25J3/064 , F25J2205/02 , F25J2210/42 , F25J2235/42 , F25J2240/12 , F25J2240/40 , F25J2270/12 , F25J2270/14 , F25J2270/42 , F25J2270/904 , F25J2290/62
摘要： A method for cooling a hydrocarbon production stream such as natural gas uses cryogenic nitrogen as a cooling medium (“refrigerant”) wherein only a portion of a nitrogen refrigerant stream is recovered, with a vapor portion of the nitrogen refrigeration stream being vented from the system. Unlike a conventional sacrificial nitrogen refrigeration process which vents all the nitrogen refrigerant after cooling a production stream, the method comprise means for recovering some of the nitrogen refrigerant thereby improving the operating efficiency of the process compared to conventional sacrificial nitrogen refrigeration processes. Also unlike conventional closed loop nitrogen refrigeration processes which recover all of the nitrogen refrigerant after cooling a production stream, the method can recover nitrogen refrigerant without the complex and costly equipment used in closed loop systems to compress nitrogen vapor.

3. 发明申请

US20170234611A1 Recovery Of Helium From Nitrogen-Rich Streams 审中-公开
公开(公告)号：US20170234611A1
公开(公告)日：2017-08-17
申请号：US15041305
申请日：2016-02-11
申请人： Air Products and Chemicals, Inc.
发明人： Vincent White , Paul Higginbotham , John Eugene Palamara , Alan Berger
IPC分类号： F25J3/02
CPC分类号： F25J3/029 , F25J3/0209 , F25J3/0233 , F25J3/0238 , F25J3/0257 , F25J3/08 , F25J2200/02 , F25J2200/04 , F25J2200/08 , F25J2200/10 , F25J2200/40 , F25J2200/50 , F25J2200/70 , F25J2200/72 , F25J2200/74 , F25J2205/04 , F25J2205/40 , F25J2205/64 , F25J2210/04 , F25J2210/06 , F25J2215/04 , F25J2235/42 , F25J2235/60 , F25J2240/02 , F25J2245/02 , F25J2250/20 , F25J2260/20 , F25J2260/44 , F25J2270/02 , F25J2270/04 , F25J2290/34
摘要： Overall power consumption in a cryogenic distillation process for recovering helium from nitrogen-rich gases comprising helium may be reduced if the feed to the distillation column system is at least substantially condensed by indirect heat exchange against a first bottoms liquid at first pressure, and a second bottoms liquid at a second pressure that is different from the first pressure.

4. 发明申请

US20160245586A1 METHOD AND DEVICE FOR SEPARATING AIR BY CRYOGENIC DISTILLATION 审中-公开
标题翻译：通过低温蒸馏分离空气的方法和装置
公开(公告)号：US20160245586A1
公开(公告)日：2016-08-25
申请号：US15027826
申请日：2014-10-14
申请人： L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXOLOITATION DES PROCEDES GEORGES CLAUDE
发明人： Benoit DAVIDIAN
IPC分类号： F25J3/04
CPC分类号： F25J3/04454 , F25J3/0406 , F25J3/0409 , F25J3/04187 , F25J3/04387 , F25J2200/20 , F25J2200/54 , F25J2235/42 , F25J2240/10 , F25J2240/42 , F25J2245/42 , F25J2290/12
摘要： The invention relates to a method for separating air by cryogenic distillation in a set of columns including a first column operating at a first pressure, a second column operating at a second pressure which is lower than the first pressure, and a third column operating at a third pressure, which is lower than the second pressure, wherein the third column includes first and second evaporator-condensers, and nitrogen from a cold compressor is sent to one of the evaporator-condensers.
摘要翻译：本发明涉及一种通过低温蒸馏在一组塔中分离空气的方法，所述塔包括在第一压力下操作的第一塔，在低于第一压力的第二压力下操作的第二塔，以及在第一塔第三压力低于第二压力，其中第三塔包括第一和第二蒸发器 - 冷凝器，并且来自冷压缩机的氮气被送到蒸发器 - 冷凝器之一。

5. 发明授权

US08991209B2 Process and installation for producing high-pressure nitrogen 有权
标题翻译：生产高压氮气的工艺和安装
公开(公告)号：US08991209B2
公开(公告)日：2015-03-31
申请号：US12965958
申请日：2010-12-13
申请人： Shinji Tomita , Kouhei Nakamura , Kenji Hirose , Jerome Beauvisage , Bao Ha
发明人： Shinji Tomita , Kouhei Nakamura , Kenji Hirose , Jerome Beauvisage , Bao Ha
IPC分类号： F25J3/00 , F25J3/04
CPC分类号： F25J3/04412 , F25J3/04048 , F25J3/0406 , F25J3/04212 , F25J3/04309 , F25J3/04315 , F25J3/04321 , F25J3/04333 , F25J3/04393 , F25J3/0486 , F25J2200/40 , F25J2200/54 , F25J2230/08 , F25J2235/42 , F25J2245/02 , F25J2245/42
摘要： A method and apparatus for producing high pressure nitrogen is provided. This system includes a first compressor for compressing air and cooling air to substantially the dew-point, a high pressure column, a medium pressure column, a conduit for introducing at least a portion of the compressed air at a base of the high pressure column; a conduit for removing a oxygen enriched liquid from the base of the high pressure column; a first valve for reducing the pressure of the oxygen enriched liquid to a medium pressure, where the medium pressure is between the high pressure and atmospheric pressure, a conduit for introducing the oxygen enriched liquid at an intermediate place of the medium pressure column; a second expander for reducing the pressure of at least a part of the liquid removed from the base of the medium pressure distillation column, to a low pressure to cool a top condenser of the medium pressure column and to form a waste vapor stream; a cold compressor for compressing a vapor stream removed form the medium pressure column, cooling the compressed vapor stream, and introducing it into the base of the high pressure column; a heat exchanger for heating the waste vapor stream, a first expander for expanding the heated stream to produce power; a conduit for withdrawing liquid from the top of the medium pressure column, pump for pumping the withdrawn liquid to high pressure and injecting it at the top of the high pressure column; and conduit for withdrawing product nitrogen from the top of the high pressure column.
摘要翻译：提供了一种生产高压氮的方法和装置。该系统包括用于将空气和冷却空气压缩至基本露点的第一压缩机，高压塔，中压塔，用于在压力塔的底部引入至少一部分压缩空气的导管; 用于从高压塔的底部除去富氧液体的管道; 第一阀，用于将富氧液体的压力降低到介质压力介于高压和大气压之间的介质压力，用于将富氧液体引入中压塔的中间位置的导管; 第二膨胀机，用于将从中压蒸馏塔底部排出的至少一部分液体的压力降低到低压以冷却中压塔的顶部冷凝器并形成废蒸气流; 用于压缩从中压塔除去的蒸气流的冷压缩机，冷却压缩的蒸气流，并将其引入高压塔的底部; 用于加热废蒸汽流的热交换器，用于膨胀加热的流以产生动力的第一膨胀器; 用于从中压塔的顶部抽出液体的管道，用于将排出的液体泵送到高压并将其注入高压塔顶部的泵; 以及用于从高压塔的顶部排出产品氮的管道。

6. 发明申请

US20020066289A1 Process and apparatus for generating high-purity nitrogen by low-temperature fractionation of air 失效
$Process and apparatus for generating high-purity nitrogen by low-temperature fractionation of air$
标题翻译：通过空气的低温分馏产生高纯氮的方法和装置
公开(公告)号：US20020066289A1
公开(公告)日：2002-06-06
申请号：US09950810
申请日：2001-09-13
申请人： LINDE AKTIENGESELLSCHAFT
发明人： Ralph Spoeri , Stefan Lochner
IPC分类号： F25J003/00
CPC分类号： F25J3/04224 , F25J3/04357 , F25J3/04387 , F25J3/04393 , F25J3/04454 , F25J2200/32 , F25J2200/34 , F25J2215/44 , F25J2220/42 , F25J2220/44 , F25J2235/42 , F25J2240/12 , F25J2245/42 , F25J2250/04
摘要： The process and the apparatus are used to generate high-purity nitrogen by low-temperature fractionation of air in a rectification system for nitrogen/oxygen separation which has at least a first rectifier column (4). Cycle nitrogen (24) in gas form is removed from the upper region of the first rectifier column (4) and is compressed in a cycle compressor (30). A first part (35) of the compressed cycle nitrogen is liquefied. A nitrogen fraction (52) from the rectification system for nitrogen/oxygen separation is introduced (52) into a high-purity nitrogen column (39) which has a top condenser (54). High-purity nitrogen (56) is removed from the upper region of the high-purity nitrogen column (39). The refrigeration demand of the top condenser (54) of the high-purity nitrogen column (39) is at least partially covered by liquefied cycle nitrogen (38).
摘要翻译：该方法和装置用于在至少具有第一整流柱（4）的氮/氧分离精馏系统中通过空气低温分馏产生高纯氮。从第一整流柱（4）的上部区域除去以气体形式循环的氮气（24），并在循环压缩机（30）中被压缩。压缩循环氮气的第一部分（35）被液化。将来自用于氮气/氧气分离的精馏系统的氮气馏分（52）引入（52）到具有顶部冷凝器（54）的高纯度氮气塔（39）中。从高纯氮塔（39）的上部区域除去高纯氮（56）。高纯氮塔（39）的顶部冷凝器（54）的制冷需求至少部分被液化循环氮气覆盖（38）。

7. 发明授权

US06397631B1 Air separation process 失效
标题翻译：空气分离过程
公开(公告)号：US06397631B1
公开(公告)日：2002-06-04
申请号：US09879232
申请日：2001-06-12
申请人： John Louis Griffiths , Paul Higginbotham
发明人： John Louis Griffiths , Paul Higginbotham
IPC分类号： F25J300
CPC分类号： F25J3/04212 , F25J3/0429 , F25J3/04296 , F25J3/04303 , F25J3/04309 , F25J3/04315 , F25J3/04442 , F25J3/04448 , F25J3/04884 , F25J2200/20 , F25J2200/54 , F25J2205/30 , F25J2235/42 , F25J2245/42 , F25J2250/20 , F25J2250/42 , F25J2250/50
摘要： A process for the cryogenic distillation of air uses a distillation column system having a supplemental column and a distillation unit including a lower-pressure column and a higher-pressure column. A liquid stream enriched in oxygen is withdrawn from the lower-pressure column and is eventually vaporized through indirect latent heat transfer, thereby producing a reflux stream, a portion of which is eventually sent to the lower-pressure column, the higher-pressure column, and/or the supplemental column. At least a portion of the reflux for the supplemental column is eventually derived from the distillation unit. A nitrogen-enriched liquid removed from the distillation unit is increased in pressure and is fed to the supplemental column or back to the distillation unit. An oxygen-enriched fluid from the bottom of the supplemental column is fed to the distillation unit. At least some of the nitrogen product from the supplemental column is returned to the distillation unit.
摘要翻译：用于空气的低温蒸馏的方法使用具有补充塔的蒸馏塔系统和包括低压塔和高压塔的蒸馏单元。富含氧的液态物流从低压塔中排出，最终通过间接潜热传递而蒸发，从而产生回流，其一部分最终送入低压塔，高压塔，和/或补充栏。补充塔的回流的至少一部分最终来自蒸馏单元。从蒸馏单元中除去的富氮液体的压力增加，并被送入补充塔或回到蒸馏单元。将来自补充塔底部的富氧流体进料至蒸馏单元。来自补充塔的至少一些氮产物返回到蒸馏单元。

8. 发明授权

US06393867B1 Installation producing low voltage electricity integrated in a unit separating gas from air 失效
标题翻译：安装生产集成在将空气与空气分离的单元中的低压电力
公开(公告)号：US06393867B1
公开(公告)日：2002-05-28
申请号：US09762271
申请日：2001-02-06
申请人： Alain Guillard
发明人： Alain Guillard
IPC分类号： F25J500
CPC分类号： F25J3/04606 , F25J1/0015 , F25J1/0202 , F25J1/0221 , F25J1/0282 , F25J3/04018 , F25J3/04024 , F25J3/0403 , F25J3/04036 , F25J3/0409 , F25J3/04121 , F25J3/04127 , F25J3/04139 , F25J3/04145 , F25J3/04224 , F25J3/04254 , F25J3/04296 , F25J3/04351 , F25J3/04381 , F25J3/04393 , F25J3/04412 , F25J3/04527 , F25J3/04539 , F25J3/04563 , F25J2210/62 , F25J2215/40 , F25J2215/42 , F25J2235/02 , F25J2235/42 , F25J2245/42 , F25J2260/42 , F25J2260/44 , F25J2290/62 , Y02E20/14
摘要： In a combined plant consisting of a fluid production apparatus (P) having a main air compressor (44) and a fluid-consuming unit (2), a gas derived from the unit is expanded in a turbine (10, 20, 30, 40, 150) or another device capable of generating mechanical energy which drives a compressor (14, 24, 34, 44, 154° [sic]. Another turbine or device may expand another gas or the same gas derived from the unit so as to drive another compressor.
摘要翻译：在由具有主空气压缩机（44）和流体消耗单元（2）的流体生产装置（P）组成的组合设备中，来自该单元的气体在涡轮机（10,20,30,40 ，150）或能够产生驱动压缩机（14,24,34,44,154°）的机械能的另一装置。另一个涡轮机或装置可以膨胀来自该装置的另一种气体或相同的气体，以便驱动另一台压缩机。

9. 发明授权

US06263700B1 Multieffect distillation for multicomponent separation 失效
标题翻译：多元蒸馏用于多组分分离
公开(公告)号：US06263700B1
公开(公告)日：2001-07-24
申请号：US09389267
申请日：1999-09-03
申请人： Rakesh Agrawal , Jianguo Xu
发明人： Rakesh Agrawal , Jianguo Xu
IPC分类号： F25J302
CPC分类号： B01D3/146 , F25J3/0219 , F25J3/0233 , F25J3/0257 , F25J3/0261 , F25J3/0295 , F25J3/04309 , F25J3/044 , F25J3/04412 , F25J3/04418 , F25J3/0443 , F25J3/04666 , F25J3/04709 , F25J3/04715 , F25J3/04793 , F25J2200/02 , F25J2200/04 , F25J2200/30 , F25J2200/34 , F25J2200/50 , F25J2200/52 , F25J2200/54 , F25J2200/90 , F25J2210/12 , F25J2235/02 , F25J2235/42 , F25J2245/02 , F25J2245/42 , F25J2290/40
摘要： An efficient multieffect distillation process separates multicomponent mixtures containing three or more components into product streams each enriched in one of the components. The distillation process consists of at least two distillation columns that are thermally linked. A mixture stream that can be the given feed or a stream recovered from another distillation column and containing three or more components is fed to one of the thermally linked distillation columns and at least two submixture streams are produced from this distillation column and transferred to other distillation columns for further distillation. At least one of the submixture streams is transferred to the other thermally linked distillation column. One submixture stream is lean in the least volatile component of the mixture feed and the other submixture stream is lean in the most volatile component of the mixture feed.
摘要翻译：有效的多效蒸馏方法将含有三种或更多种组分的多组分混合物分离成各自富含一种组分的产物流。蒸馏过程由至少两个热连接的蒸馏塔组成。将可以是给定进料或从另一个蒸馏塔回收并含有三种或更多种组分的混合物料流进料到一个热连接的蒸馏塔中，并从该蒸馏塔产生至少两种亚混合物流并转移至其它蒸馏塔用于进一步蒸馏。至少一个副混合流被转移到另一个热连接的蒸馏塔。一个混合物料流在混合物进料的最不易挥发的组分中是贫的，而另一个混合物流在混合物进料的最易挥发组分中是贫的。

10. 发明授权

US6116052A Cryogenic air separation process and installation 有权
标题翻译：低温空气分离过程和安装
公开(公告)号：US6116052A
公开(公告)日：2000-09-12
申请号：US289287
申请日：1999-04-09
申请人： Bao Ha , Jean-Renaud Brugerolle
发明人： Bao Ha , Jean-Renaud Brugerolle
IPC分类号： F25J3/04 , F25B3/00
CPC分类号： F25J3/04212 , F25J3/04018 , F25J3/0409 , F25J3/04127 , F25J3/04175 , F25J3/04296 , F25J3/04303 , F25J3/04387 , F25J3/04448 , F25J3/04575 , F25J3/046 , F25J3/04606 , F25J3/04618 , F25J2200/20 , F25J2200/50 , F25J2200/54 , F25J2215/52 , F25J2235/42 , F25J2245/42
摘要： The present invention relates to processes and installations for the production of oxygen and nitrogen by cryogenic distillation. The cost of oxygen and nitrogen production is reduced by providing an improved high pressure process.
摘要翻译：本发明涉及通过低温蒸馏生产氧和氮的方法和装置。通过提供改进的高压过程来降低氧气和氮气的生产成本。

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