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11. 发明申请

US20190331418A1 SYSTEM AND METHOD FOR HIGH RECOVERY OF NITROGEN AND ARGON FROM A MODERATE PRESSURE CRYOGENIC AIR SEPARATION UNIT 审中-公开
公开(公告)号：US20190331418A1
公开(公告)日：2019-10-31
申请号：US15962358
申请日：2018-04-25
申请人： Neil M. Prosser , James R. Handley , Brian R. Kromer
发明人： Neil M. Prosser , James R. Handley , Brian R. Kromer
IPC分类号： F25J3/04
摘要： A moderate pressure air separation unit and air separation cycle is disclosed that provides for up to about 96% recovery of argon and an overall nitrogen recovery of 98% or greater. The air separation is configured to produce a high purity oxygen enriched stream which is used as the refrigerant to condense the argon in the argon condenser, with the resulting vaporized oxygen stream used to regenerate the temperature swing adsorption prepurifier unit. Argon recovery is facilitated with the use of an argon superstaged column.

12. 发明申请

US20140245782A1 ARGON PRODUCTION METHOD AND APPARATUS 有权
标题翻译： ARGON生产方法和设备
公开(公告)号：US20140245782A1
公开(公告)日：2014-09-04
申请号：US14192003
申请日：2014-02-27
申请人： Henry E. Howard , Persefoni E. Kechagia , Philip A. Barrett , James R. Handley
发明人： Henry E. Howard , Persefoni E. Kechagia , Philip A. Barrett , James R. Handley
IPC分类号： F25J1/00
CPC分类号： F25J3/04733 , B01D53/04 , B01D2253/108 , B01D2256/18 , B01D2257/104 , C01B23/0052 , C01B23/0057 , C01B2210/0014 , C01B2210/0034 , C01B2210/0045 , F25J3/0409 , F25J3/04303 , F25J3/04412 , F25J3/04678 , F25J2205/02 , F25J2205/60 , F25J2205/66 , F25J2215/58 , F25J2220/04 , F25J2245/42
摘要： A method and apparatus for producing a purified liquid argon product in which liquid argon having oxygen impurities is produced in a cryogenic air separation plant by separating argon from oxygen within an argon column. An impure liquid argon stream, composed of part of the liquid argon, is purified in an adsorbent bed by adsorbing the oxygen impurities in an adsorbent to produce a purified liquid argon stream that constitutes the purified liquid argon product. During adsorption, the adsorbent bed is maintained at a reduced temperature with a coolant to prevent vaporization of the liquid argon. The bed is then regenerated by draining residual liquid argon from the adsorbent bed, introducing the residual liquid argon back into the air separation plant and then desorbing the oxygen impurities with a regeneration gas. After regeneration, the adsorbent bed is refilled with purified liquid argon prior to being brought back on-line.
摘要翻译：一种用于生产纯化液态氩产物的方法和装置，其中在低温空气分离装置中通过从氩气塔内分离氩气而产生具有氧杂质的液态氩。由一部分液态氩构成的不纯液态氩气流通过吸附吸附剂中的氧杂质而在吸附床中进行纯化，从而产生构成纯化液氩产品的纯化液氩流。在吸附过程中，用冷却剂将吸附床保持在降低的温度，以防止液态氩的蒸发。然后通过从吸附床排出残留的液态氩，将残余的液态氩引入空气分离装置，然后用再生气体解吸氧杂质，再生床。在再生之后，吸附床在被还原回来之前用纯化的液态氩再填充。

13. 发明授权

US5041149A Separation of nitrogen and methane with residue turboexpansion 失效
标题翻译：分离氮和甲烷与残留涡轮膨胀
公开(公告)号：US5041149A
公开(公告)日：1991-08-20
申请号：US599415
申请日：1990-10-18
申请人： James R. Handley
发明人： James R. Handley
IPC分类号： F25J3/02
CPC分类号： F25J3/0209 , F25J3/0233 , F25J3/0257 , F25J2200/02 , F25J2200/04 , F25J2200/38 , F25J2205/02 , F25J2205/04 , F25J2235/60 , F25J2240/02 , F25J2270/04 , Y10S62/927
摘要： A method for separating nitrogen and methane by cryogenic distillation wherein methane residue is turboexpanded to generate refrigeration to drive the separation.

14. 发明授权

US12055345B2 Air separation unit and method for production of nitrogen and argon using a distillation column system with an intermediate pressure kettle column 有权
公开(公告)号：US12055345B2
公开(公告)日：2024-08-06
申请号：US17875616
申请日：2022-07-28
申请人： Neil M. Prosser , James R. Handley
发明人： Neil M. Prosser , James R. Handley
IPC分类号： F25J3/00 , F25J3/04
CPC分类号： F25J3/04709 , F25J3/04448 , F25J2200/08 , F25J2210/40 , F25J2215/42 , F25J2215/58
摘要： An air separation unit and associated method for separating air by cryogenic distillation using a distillation column system including a higher pressure column, a lower pressure column, an intermediate pressure kettle column, and an argon column arrangement is provided. The disclosed air separation unit and method is particularly suited for production of an argon product as well as several nitrogen products wherein a portion of the nitrogen overhead intermediate pressure kettle column is taken as an intermediate or elevated pressure nitrogen product. The present air separation unit and associated method employs a once-through kettle column reboiler, a once-through kettle column condenser while the argon condenser condenses an argon-rich vapor stream against a pumped oxygen stream from the bottom of the lower pressure column.

15. 发明授权

US11619442B2 Method for regenerating a pre-purification vessel 有权
公开(公告)号：US11619442B2
公开(公告)日：2023-04-04
申请号：US17234100
申请日：2021-04-19
申请人： James R. Handley , Richard C. Cyganovich , Cem E. Celik , Brian S. Powell , Devang Ashok Dasani
发明人： James R. Handley , Richard C. Cyganovich , Cem E. Celik , Brian S. Powell , Devang Ashok Dasani
IPC分类号： F25J3/02
摘要： A system and method of regenerating a pre-purification vessel is provided that is particularly suitable for pre-purification of a feed air stream in cryogenic air separation unit that uses an oxygen-enriched purge gas stream for regeneration of the pre-purification unit. The disclosed pre-purification systems and methods are configured to remove substantially all of the water, carbon dioxide and other impurities from a feed air stream, optionally including hydrogen and carbon monoxide impurities. The method of regenerating a pre-purification vessel preferably involves regenerating the pre-purification vessel with an oxygen-enriched purge gas after depressurization of the vessel and thereafter partially repressurizing the pre-purification vessel with an auxiliary purge gas thereby diluting the oxygen concentration of the gases contained in the pre-purification vessel and optionally depressurizing the partially repressurized vessel.

16. 发明申请

US20200149806A1 SYSTEM AND METHOD FOR ENHANCED RECOVERY OF ARGON AND OXYGEN FROM A NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT 审中-公开
公开(公告)号：US20200149806A1
公开(公告)日：2020-05-14
申请号：US16742950
申请日：2020-01-15
申请人： Neil M. Prosser , Brian R. Kromer , James R. Handley
发明人： Neil M. Prosser , Brian R. Kromer , James R. Handley
IPC分类号： F25J3/04
摘要： A moderate pressure air separation unit and air separation cycle is disclosed that provides for up to about 96% recovery of argon, an overall nitrogen recovery of 98 percent or greater and limited gaseous oxygen production. The air separation is configured to produce a first high purity oxygen enriched stream and a second lower purity oxygen enriched stream from the lower pressure column, one of which is used as the refrigerant to condense the argon in the argon condenser, with the resulting vaporized oxygen stream used to regenerate the temperature swing adsorption pre-purifier unit. All or a portion of the first high purity oxygen enriched stream is vaporized in the main heat exchanger to produce the gaseous oxygen products.

17. 发明申请

US20190331419A1 SYSTEM AND METHOD FOR ENHANCED RECOVERY OF ARGON AND OXYGEN FROM A NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT 审中-公开
公开(公告)号：US20190331419A1
公开(公告)日：2019-10-31
申请号：US15962297
申请日：2018-04-25
申请人： James R. Handley , Neil M. Prosser , Brian R. Kromer
发明人： James R. Handley , Neil M. Prosser , Brian R. Kromer
IPC分类号： F25J3/04
摘要： A moderate pressure air separation unit and air separation cycle is disclosed that provides for up to about 96% recovery of argon, an overall nitrogen recovery of 98% or greater and limited gaseous oxygen production. The air separation is configured to produce a first high purity oxygen enriched stream and a second lower purity oxygen enriched stream from the lower pressure column, one of which is used as the refrigerant to condense the argon in the argon condenser, with the resulting vaporized oxygen stream used to regenerate the temperature swing adsorption pre-purifier unit. All or a portion of the first high purity oxygen enriched stream is vaporized in the main heat exchanger to produce the gaseous oxygen products.

18. 发明申请

US20170198968A1 ARGON PRODUCTION METHOD AND APPARATUS 有权
公开(公告)号：US20170198968A1
公开(公告)日：2017-07-13
申请号：US15468234
申请日：2017-03-24
申请人： Henry E. Howard , Persefoni E. Kechagia , Philip A. Barrett , James R. Handley
发明人： Henry E. Howard , Persefoni E. Kechagia , Philip A. Barrett , James R. Handley
IPC分类号： F25J3/04 , C01B23/00
CPC分类号： F25J3/04733 , B01D53/04 , B01D2253/108 , B01D2256/18 , B01D2257/104 , C01B23/0052 , C01B23/0057 , C01B2210/0014 , C01B2210/0034 , C01B2210/0045 , F25J3/0409 , F25J3/04303 , F25J3/04412 , F25J3/04678 , F25J2205/02 , F25J2205/60 , F25J2205/66 , F25J2215/58 , F25J2220/04 , F25J2245/42
摘要： A method and apparatus for producing a purified liquid argon product in which liquid argon having oxygen impurities is produced in a cryogenic air separation plant by separating argon from oxygen within an argon column. An impure liquid argon stream, composed of part of the liquid argon, is purified in an adsorbent bed by adsorbing the oxygen impurities in an adsorbent to produce a purified liquid argon stream that constitutes the purified liquid argon product. During adsorption, the adsorbent bed is maintained at a reduced temperature with a coolant to prevent vaporization of the liquid argon. The bed is then regenerated by draining residual liquid argon from the adsorbent bed, introducing the residual liquid argon back into the air separation plant and then desorbing the oxygen impurities with a regeneration gas. After regeneration, the adsorbent bed is refilled with purified liquid argon prior to being brought back on-line.

19. 发明授权

US09644890B2 Argon production method and apparatus 有权
公开(公告)号：US09644890B2
公开(公告)日：2017-05-09
申请号：US14192003
申请日：2014-02-27
申请人： Henry E. Howard , Persefoni E. Kechagia , Philip A. Barrett , James R. Handley
发明人： Henry E. Howard , Persefoni E. Kechagia , Philip A. Barrett , James R. Handley
IPC分类号： F25J3/00 , F25J3/04 , C01B23/00 , B01D53/04
CPC分类号： F25J3/04733 , B01D53/04 , B01D2253/108 , B01D2256/18 , B01D2257/104 , C01B23/0052 , C01B23/0057 , C01B2210/0014 , C01B2210/0034 , C01B2210/0045 , F25J3/0409 , F25J3/04303 , F25J3/04412 , F25J3/04678 , F25J2205/02 , F25J2205/60 , F25J2205/66 , F25J2215/58 , F25J2220/04 , F25J2245/42
摘要： A method and apparatus for producing a purified liquid argon product in which liquid argon having oxygen impurities is produced in a cryogenic air separation plant by separating argon from oxygen within an argon column. An impure liquid argon stream, composed of part of the liquid argon, is purified in an adsorbent bed by adsorbing the oxygen impurities in an adsorbent to produce a purified liquid argon stream that constitutes the purified liquid argon product. During adsorption, the adsorbent bed is maintained at a reduced temperature with a coolant to prevent vaporization of the liquid argon. The bed is then regenerated by draining residual liquid argon from the adsorbent bed, introducing the residual liquid argon back into the air separation plant and then desorbing the oxygen impurities with a regeneration gas. After regeneration, the adsorbent bed is refilled with purified liquid argon prior to being brought back on-line.

20. 发明申请

US20160003539A1 ARGON CONDENSATION SYSTEM AND METHOD 审中-公开
标题翻译： 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
申请人： James R. Handley , Brian S. Powell , Henry E. Howard , Vijayaraghavan S. Chakravarthy , Maulik R. Shelat , Steven R. Falta
发明人： James R. Handley , Brian S. Powell , Henry E. Howard , Vijayaraghavan S. Chakravarthy , Maulik R. Shelat , Steven R. Falta
IPC分类号： F25J3/04
CPC分类号： F25J3/04672 , F25J3/0285 , F25J3/04412 , F25J3/04678 , F25J3/04715 , F25J3/048 , F25J3/04848 , F25J2250/02 , F25J2250/20
摘要： 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.
摘要翻译：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。

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