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1. 发明授权

US09360250B2 Process and apparatus for the separation of air by cryogenic distillation 有权
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：US09360250B2
公开(公告)日：2016-06-07
申请号：US13778700
申请日：2013-02-27
申请人： L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Bao Ha , Jean-Renaud Brugerolle
IPC分类号： F25J3/00 , F25J3/04
CPC分类号： F25J3/04448 , F25J3/04 , F25J3/04054 , F25J3/0409 , F25J3/04175 , F25J3/042 , F25J3/0429 , F25J3/04296 , F25J3/04303 , F25J3/04381 , F25J3/04393 , F25J3/04454 , F25J2200/08 , F25J2200/10 , F25J2200/32 , F25J2200/50 , F25J2200/78 , F25J2205/30 , F25J2230/30 , F25J2230/40 , F25J2235/52 , F25J2245/02 , F25J2250/04 , F25J2250/52 , F25J2290/12
摘要： The present invention relates to a process and apparatus for the separation of air by cryogenic distillation. In particular, it relates to a process for separation of air using three cryogenic distillation columns for the production of gaseous oxygen. Certain embodiments of the invention are particularly efficient for the production of gaseous oxygen at pressures between 30 and 45 bars abs, in which the oxygen is produced by removing liquid oxygen from a distillation column, pressurizing the oxygen and vaporizing the pressurized liquid by heat exchange with air.
摘要翻译：本发明涉及通过低温蒸馏分离空气的方法和装置。特别地，本发明涉及使用三个用于生产气态氧的低温蒸馏塔分离空气的方法。本发明的某些实施方案对于在30至45巴绝对压力下生产气态氧是特别有效的，其中通过从蒸馏塔中除去液氧产生氧气，对氧气加压并通过与空气。

2. 发明申请

US20160123663A1 AIR SEPARATION METHOD 审中-公开
标题翻译：空气分离方法
公开(公告)号：US20160123663A1
公开(公告)日：2016-05-05
申请号：US14994708
申请日：2016-01-13
申请人： Henry Edward Howard
发明人： Henry Edward Howard
IPC分类号： F25J3/04
CPC分类号： F25J3/04012 , F25J3/04018 , F25J3/0409 , F25J3/04163 , F25J3/0423 , F25J3/04303 , F25J3/04412 , F25J3/04424 , F25J3/04654 , F25J3/04666 , F25J3/04672 , F25J3/04678 , F25J3/04709 , F25J3/04715 , F25J3/04721 , F25J2200/54 , F25J2210/58 , F25J2215/40 , F25J2220/40 , F25J2250/20 , F25J2250/40 , F25J2250/52 , F25J2270/02 , F25J2290/34
摘要： A cryogenic air separation method and apparatus in which first and second liquid streams are produced. The first liquid stream has a higher oxygen content than air and can consist of a higher pressure distillation column bottoms and the second liquid stream, for instance, air, has a lower oxygen content than the first liquid stream and an argon content no less than the air. The second liquid stream is subcooled through indirect heat exchange with the first liquid stream and both of such streams are introduced into the lower pressure column. The second liquid stream is introduced into the lower pressure column above that point at which the crude liquid oxygen column bottoms or any portion thereof is introduced into the lower pressure column to increase a liquid to vapor ratio below the introduction of the second liquid stream and therefore, reduce the oxygen present within the column overhead.
摘要翻译：一种生产第一和第二液体流的低温空气分离方法和装置。第一液体流具有比空气更高的氧含量，并且可以由较高压力的蒸馏塔底部和第二液体流（例如空气）组成，具有比第一液体流更低的氧含量，并且氩含量不低于空气。通过与第一液体流的间接热交换将第二液体流过冷，并且将这两个流引入低压塔。将第二液体物流引入低于该粗液柱氧塔底部或其任何部分被引入低压塔的点以将液体与蒸汽的比例增加到低于引入第二液流的点，减少塔顶内存在的氧气。

3. 发明授权

US5924308A Heat exchange method and apparatus 失效
标题翻译：热交换方法和装置
公开(公告)号：US5924308A
公开(公告)日：1999-07-20
申请号：US40235
申请日：1998-03-16
申请人： Thomas Rathbone
发明人： Thomas Rathbone
IPC分类号： F04F1/18 , F25J3/04 , F25J1/00
CPC分类号： F04F1/18 , F25J3/04412 , F25J3/04793 , F25J3/04884 , F25J2235/06 , F25J2245/50 , F25J2250/04 , F25J2250/50 , F25J2250/52 , Y10S62/903
摘要： A heat exchange apparatus, typically for use in association with a double rectification column for the separation of air, has a downflow reboiler with boiling passages. In addition, there is a condenser in a position at a higher elevation than the reboiler. The condenser is fed with liquefied gas to be reboiled from the sump of a lower pressure column forming part of the double rectification column. A first conduit feeds the liquefied gas under gravity to the reboiler. The feeding of the condenser is effected by a vapor lift pump comprising a second conduit and an expansion valve disposed therein. Some of the liquefied gas is vaporized by passage through the expansion valve, and this vapor provides the vapor lifting pumping effect. The vapor is recondensed in the condenser.
摘要翻译：通常与用于分离空气的双精馏塔一起使用的热交换装置具有带沸腾通道的下流再沸器。另外，冷凝器处于比再沸器更高的高度的位置。冷凝器送入液化气体，从形成双精馏塔一部分的低压塔的集油槽中再沸腾。第一管道将液化气体在重力作用下送入再沸器。冷凝器的进料由包括第二导管和设置在其中的膨胀阀的蒸汽提升泵来实现。一些液化气体通过通过膨胀阀而蒸发，并且该蒸汽提供蒸气提升泵送效果。蒸汽在冷凝器中再凝结。

4. 发明授权

US5644933A Air separation 失效
标题翻译：空气分离
公开(公告)号：US5644933A
公开(公告)日：1997-07-08
申请号：US582594
申请日：1996-01-03
申请人： Thomas Rathbone
发明人： Thomas Rathbone
IPC分类号： F25J3/02 , F25J3/04
CPC分类号： F25J3/042 , F25J3/04212 , F25J3/04303 , F25J3/04418 , F25J2200/20 , F25J2200/54 , F25J2205/02 , F25J2215/50 , F25J2235/52 , F25J2245/02 , F25J2250/20 , F25J2250/42 , F25J2250/52 , Y10S62/90 , Y10S62/902
摘要： A stream of compressed air is purified in a unit by removal of carbon dioxide and water vapour. The air is cooled by passage through a heat exchanger to a temperature suitable for its rectification. The air is separated in a higher pressure rectifier into oxygen-enriched liquid and nitrogen vapour. A stream of the oxygen-enriched liquid is reduced in pressure and introduced into a phase separator provided with a reboiler with the result that further separation takes place and a liquid further enriched in oxygen and an intermediate vapour are formed. A stream of the further-enriched liquid is separated into oxygen and nitrogen in a lower pressure rectifier. A stream of the intermediate vapour is condensed in a condenser and is introduced into the lower pressure rectifier. A part of the liquid nitrogen reflux for the higher and lower pressure rectifiers is formed by condensing nitrogen vapour separated in the higher pressure rectifier by indirect heat exchange with liquid from an intermediate mass transfer region the rectifier. Another part of the liquid nitrogen reflux is formed by vaporising impure oxygen product of the lower pressure rectifier in a condenser-reboiler by indirect heat exchange with nitrogen vapour taken from the lower pressure rectifier.
摘要翻译：通过除去二氧化碳和水蒸汽，将一股压缩空气一个一个地净化。通过热交换器将空气冷却至适于其整流的温度。空气在高压精馏器中分离成富氧液体和氮气蒸气。富氧液体的流在压力下被降低并引入设置有再沸器的相分离器中，结果进一步分离，并形成进一步富含氧和中间蒸气的液体。进一步富集的液体的流在低压精馏器中被分离成氧和氮。中间蒸汽的流在冷凝器中冷凝并被引入低压精馏器。用于高压和低压整流器的部分液氮回流是通过与来自中间传质区域的整流器的液体进行间接热交换来冷凝在较高压力整流器中分离的氮气蒸汽而形成的。通过与从低压整流器获取的氮气蒸气进行间接热交换，在冷凝器 - 再沸器中蒸发低压精馏器的不纯氧产物，形成另一部分液氮回流。

5. 发明授权

US5438835A Air separation 失效
标题翻译：空气分离
公开(公告)号：US5438835A
公开(公告)日：1995-08-08
申请号：US230667
申请日：1994-04-21
申请人： Thomas Rathbone
发明人： Thomas Rathbone
IPC分类号： F25J3/04 , F25J3/02
CPC分类号： F25J3/042 , F25J3/04212 , F25J3/04303 , F25J3/04418 , F25J3/04448 , F25J3/04884 , F25J2200/20 , F25J2200/34 , F25J2200/54 , F25J2200/90 , F25J2205/02 , F25J2235/52 , F25J2245/02 , F25J2250/20 , F25J2250/42 , F25J2250/50 , F25J2250/52 , Y10S62/90 , Y10S62/94
摘要： A first stream of cooled and purified air is introduced into a higher pressure rectification column 12 through an inlet 14 and is separated into oxygen-enriched liquid and nitrogen vapour. A stream of the oxygen-enriched liquid is flashed through a pressure reducing valve 40 into an intermediate rectification column 22 in which it is separated into further-enriched liquid and an intermediate nitrogen vapour. A stream of the further-enriched liquid is reboiled in condenser-reboiler 46 and is introduced into a lower pressure rectifier 34 comprising an upper stage 58 and a lower stage 60. The lower pressure rectifier 34 has a bottom condenser-reboiler 16 which is heated by a second stream of cooled and purified air. The second stream is itself condensed in the reboiler 16 and is introduced into the higher pressure column 12. The lower pressure rectifier also has an intermediate condenser-reboiler 22 which is employed to form liquid nitrogen reflux for the rectification by condensing nitrogen vapour separated in the higher pressure rectification column. In alternative examples of the process, the liquid that is flashed through the valve 40 is subjected to phase separation rather than rectification.
摘要翻译：冷却和净化的空气的第一流通过入口14被引入高压精馏塔12中，并被分离成富氧液体和氮蒸气。富氧液体流通过减压阀40闪蒸成中间精馏塔22，在其中将其分离成富集液体和中间氮气。进一步富集的液体的流在冷凝器再沸器46中再沸腾并被引入包括上级58和下级60的低压精馏器34.低压精馏器34具有底部冷凝器 - 再沸器16，其被加热通过冷却和净化空气的第二流。第二料流本身在再沸器16中冷凝并被引入高压塔12.低压精馏器还具有中间冷凝器 - 再沸器22，其用于通过冷凝分离的氮蒸汽来形成用于精馏的液氮回流高压精馏塔。在该方法的替代实例中，通过阀40闪蒸的液体经过相分离而不是整流。

6. 发明授权

US5228296A Cryogenic rectification system with argon heat pump 失效
标题翻译：氩气热泵低温精馏系统
公开(公告)号：US5228296A
公开(公告)日：1993-07-20
申请号：US842494
申请日：1992-02-27
申请人： Henry E. Howard
发明人： Henry E. Howard
IPC分类号： F25J3/04
CPC分类号： F25J3/04309 , F25J3/0409 , F25J3/042 , F25J3/04206 , F25J3/0423 , F25J3/04278 , F25J3/04303 , F25J3/04369 , F25J3/04412 , F25J3/0466 , F25J3/04672 , F25J2200/50 , F25J2200/52 , F25J2200/90 , F25J2250/40 , F25J2250/50 , F25J2250/52 , F25J2270/12 , F25J2270/58 , Y10S62/912 , Y10S62/924 , Y10S62/939
摘要： A cryogenic rectification system wherein condensed heat pump fluid is subcooled in the upper portion of an argon column, cools incoming feed, and is compressed and then condensed against cryogenic rectification plant bottoms for reboil thus improving reflux ratios and increasing argon recovery.

7. 发明授权

US3736762A Method of producing the gaseous and liquefied nitrogen and an apparatus used therefor 失效
标题翻译：生产天然气和液化氮的方法及其使用的装置
公开(公告)号：US3736762A
公开(公告)日：1973-06-05
申请号：US3736762D
申请日：1970-10-20
申请人： KOBE STEEL LTD
发明人： TOYAMA A , MATSUMOTO I , IZUMICHI T
IPC分类号： F25J3/04 , F25J3/02
CPC分类号： F25J3/04284 , F25J3/04242 , F25J3/044 , F25J2200/72 , F25J2205/24 , F25J2205/60 , F25J2205/84 , F25J2250/40 , F25J2250/42 , F25J2250/52
摘要： In a method of producing gaseous and liquefied nitrogen having a pressure higher than atmospheric pressure, by the use of an apparatus comprising a reversible heat exchanger and a single column rectifier, the combination of following steps: the impure gas obtained by heat-exchanging, in a condenser-evaporator, of liquefied air with nitrogen gas, each of which has been separated in the column, is divided into two parts; one of these parts is again divided into two parts; one part of this second division is passed through a control valve and then through the heat exchanger, after which it is united and admixed with the remaining part of the gas resulting from the second division, which has passed through a control valve; this admixture is supplied to an expansion turbine; the expanded impure gas is united and admixed with the remaining part of the gas resulting from the original division, which has passed through a control valve: and this admixture, after having been passed through the air-liquefier and then the heat exchanger, is taken out of the apparatus. Adopting the abovementioned process makes it possible to industrially and advantageously produce gaseous nitrogen and liquefied nitrogen.
摘要翻译：在制造压力高于大气压的气态和液化氮的方法中，通过使用包括可逆热交换器和单塔整流器的装置，组合以下步骤：通过热交换获得的不纯气体，一个冷凝器 - 蒸发器，分别在塔中分离出氮气的液化空气，分成两部分; 这些部分之一再分为两部分; 该第二部分的一部分通过控制阀，然后通过热交换器，然后将其与通过控制阀的第二分配产生的气体的剩余部分相结合并混合; 该混合物被供应到膨胀涡轮机; 将膨胀的不纯气体与通过控制阀的原始分配产生的气体的剩余部分相混合，并将该混合物在通过空气液化器然后通过热交换器之后离开设备。采用上述方法可以在工业上有利地产生气态氮和液化氮。

8. 发明授权

US3059438A Apparatus and method for fractionation of gas 失效
$Apparatus and method for fractionation of gas$
标题翻译：用于分馏气体的装置和方法
公开(公告)号：US3059438A
公开(公告)日：1962-10-23
申请号：US82238759
申请日：1959-06-23
申请人： AIR PROD & CHEM
发明人： SCHILLING CLARENCE J
IPC分类号： F25J3/04
CPC分类号： F25J3/04218 , F25J3/04018 , F25J3/04121 , F25J3/04309 , F25J3/04412 , F25J3/04957 , F25J2205/24 , F25J2230/24 , F25J2230/40 , F25J2250/50 , F25J2250/52

9. 发明授权

US2982107A Separation of the elements of air 失效
标题翻译：分离空气的元素
公开(公告)号：US2982107A
公开(公告)日：1961-05-02
申请号：US70319657
申请日：1957-12-16
申请人： AIR REDUCTION
发明人： LESLIE SMITH DONALD
IPC分类号： F25J3/04
CPC分类号： F25J3/04224 , F25J3/04242 , F25J3/04278 , F25J3/04412 , F25J3/04642 , F25J3/04648 , F25J3/04878 , F25J2200/52 , F25J2205/30 , F25J2215/32 , F25J2235/42 , F25J2250/10 , F25J2250/20 , F25J2250/52 , F25J2250/58 , F25J2270/12 , F25J2270/14 , F25J2270/42

10. 发明授权

US2753698A Method and apparatus for fractionating air and power production 失效
$Method and apparatus for fractionating air and power production$
标题翻译：分配空气和电力生产的方法和装置
公开(公告)号：US2753698A
公开(公告)日：1956-07-10
申请号：US34003353
申请日：1953-03-03
申请人： LINDE EISMASCH AG
发明人： FRITZ JAKOB
IPC分类号： F25J3/04 , F25J5/00
CPC分类号： F25J3/04284 , F25J3/04412 , F25J2205/24 , F25J2250/20 , F25J2250/40 , F25J2250/52

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