公开(公告)号：US10981103B2

公开(公告)日：2021-04-20

申请号：US16662193

申请日：2019-10-24

申请人： David R. Parsnick ,  Neil M. Prosser ,  John F. Billingham ,  Henry E. Howard

发明人： David R. Parsnick ,  Neil M. Prosser ,  John F. Billingham ,  Henry E. Howard

IPC分类号： F25J3/02 ,  B01D53/04 ,  F25J3/04

摘要： A moderate pressure, argon and nitrogen producing cryogenic air separation unit and air separation cycle having a higher pressure column, a lower pressure column and an argon column arrangement is disclosed. The moderate pressure, argon and nitrogen producing cryogenic air separation unit is configured to take a first portion of an oxygen enriched stream from the lower pressure column, which together with an external source of liquid nitrogen is used as the boiling side refrigerant to condense the argon in the argon condenser. Use of the external source of liquid nitrogen in the argon condenser allows a second portion of the oxygen enriched stream from the lower pressure column to be taken as a liquid oxygen product stream.

公开(公告)号：US10309721B2

公开(公告)日：2019-06-04

申请号：US16107204

申请日：2018-08-21

申请人： Henry E. Howard

发明人： Henry E. Howard

IPC分类号： F25J3/02 ,  F25J5/00

摘要： A system and method for argon and nitrogen extraction from a feed stream comprising hydrogen, methane, nitrogen and argon, such as tail gas of an ammonia production plant is provided. The disclosed system and method provides for nitrogen-argon rectification and the methane rejection within a column system comprised of at least one distillation column. Nitrogen and argon are further separated and to produce liquid products. An argon stripping column arrangement is disclosed where residual argon is further removed from the methane-rich fuel gas and recycled back to the feed stream.

公开(公告)号：US10295251B2

公开(公告)日：2019-05-21

申请号：US15271533

申请日：2016-09-21

申请人： Henry E. Howard

发明人： Henry E. Howard

IPC分类号： F25J3/00 ,  F25J3/02 ,  F25J1/00 ,  C01B3/50 ,  C01C1/04 ,  F25J1/02

摘要： A system and method for cryogenic purification of a hydrogen, nitrogen, methane and argon containing feed stream to produce a methane free, hydrogen and nitrogen containing synthesis gas and a methane rich fuel gas, as well as to recover an argon product stream, excess hydrogen, and excess nitrogen is provided. The disclosed system and method are particularly useful as an integrated cryogenic purifier in an ammonia synthesis process in an ammonia plant. The excess nitrogen is a nitrogen stream substantially free of methane and hydrogen that can be used in other parts of the plant, recovered as a gaseous nitrogen product and/or liquefied to produce a liquid nitrogen product.

公开(公告)号：US20180080708A1

公开(公告)日：2018-03-22

申请号：US15271533

申请日：2016-09-21

申请人： Henry E. Howard

发明人： Henry E. Howard

IPC分类号： F25J3/02 ,  F25J5/00 ,  F25J1/00

CPC分类号： F25J1/0015 ,  C01B3/506 ,  C01B2203/046 ,  C01B2203/068 ,  C01C1/0405 ,  F25J1/0035 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0208 ,  F25J1/0237 ,  F25J1/0264 ,  F25J1/0288 ,  F25J3/0219 ,  F25J3/0233 ,  F25J3/0257 ,  F25J3/0276 ,  F25J3/0285 ,  F25J2200/30 ,  F25J2200/70 ,  F25J2200/74 ,  F25J2200/94 ,  F25J2200/96 ,  F25J2205/30 ,  F25J2210/04 ,  F25J2210/20 ,  F25J2210/42 ,  F25J2210/58 ,  F25J2210/62 ,  F25J2215/04 ,  F25J2230/30 ,  F25J2235/60 ,  F25J2245/02 ,  F25J2260/20 ,  F25J2270/06 ,  F25J2270/12 ,  F25J2270/16 ,  F25J2270/42 ,  F25J2270/90 ,  F25J2270/904

摘要： A system and method for cryogenic purification of a hydrogen, nitrogen, methane and argon containing feed stream to produce a methane free, hydrogen and nitrogen containing synthesis gas and a methane rich fuel gas, as well as to recover an argon product stream, excess hydrogen, and excess nitrogen is provided. The disclosed system and method are particularly useful as an integrated cryogenic purifier in an ammonia synthesis process in an ammonia plant. The excess nitrogen is a nitrogen stream substantially free of methane and hydrogen that can be used in other parts of the plant, recovered as a gaseous nitrogen product and/or liquefied to produce a liquid nitrogen product.

公开(公告)号：US20170122661A1

公开(公告)日：2017-05-04

申请号：US15297446

申请日：2016-10-19

申请人： Henry E. Howard

发明人： Henry E. Howard

IPC分类号： F25J3/02

CPC分类号： F25J3/0285 ,  F25J3/0219 ,  F25J3/0233 ,  F25J3/0252 ,  F25J3/0257 ,  F25J3/0276 ,  F25J2200/06 ,  F25J2200/30 ,  F25J2200/38 ,  F25J2200/72 ,  F25J2200/76 ,  F25J2200/78 ,  F25J2210/20 ,  F25J2215/04 ,  F25J2235/60 ,  F25J2270/02 ,  F25J2270/04 ,  F25J2270/42 ,  F25J2290/34

摘要： A system and method for argon and nitrogen extraction and liquefaction from a low-pressure tail gas of an ammonia production plant is provided. The preferred tail gas of the ammonia production plant comprises methane, nitrogen, argon, and hydrogen. The disclosed system and method provides for the methane rejection via rectification and hydrogen rejection by way of a side stripper column or phase separator. The resulting nitrogen and argon containing stream is separated and liquefied in a double column distillation system.

公开(公告)号：US20160032934A1

公开(公告)日：2016-02-04

申请号：US14883870

申请日：2015-10-15

申请人： Carl L. Schwarz ,  Lee J. Rosen ,  Nick J. Degenstein ,  Henry E. Howard ,  Reh-Lin Chen ,  Ahmed F. Abdelwahab

发明人： Carl L. Schwarz ,  Lee J. Rosen ,  Nick J. Degenstein ,  Henry E. Howard ,  Reh-Lin Chen ,  Ahmed F. Abdelwahab

IPC分类号： F04D27/00 ,  F04D25/06 ,  F04D17/12

CPC分类号： F04D27/004 ,  F04B25/00 ,  F04D17/12 ,  F04D25/06 ,  F04D25/16 ,  F04D27/0261 ,  F04D27/0269 ,  F04D29/266 ,  F05D2260/311 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0409 ,  F25J3/04133 ,  F25J3/0429 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04781 ,  F25J3/04884 ,  F25J3/04957 ,  F25J2230/20 ,  F25J2230/24 ,  F25J2230/40 ,  F25J2250/02

摘要： A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed driver assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed driver assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed driver assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.

摘要翻译： 提供了使用串联控制的至少两个变速压缩机驱动组件来压缩进入的进料气流的方法。 第一变速驱动器组件驱动低压压缩机单元中的至少一个压缩级，而第二变速驱动器组件驱动设置在空气分离设备的公共空气压缩系或分离功能压缩系中的较高压力压缩级 。 第一和第二变速驱动器组件优选地是高速，可变速度的电动机组件，每个具有马达主体，马达壳体和马达轴，其中一个或多个叶轮通过牺牲刚性轴直接且刚性地联接到马达轴上 耦合。

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。

公开(公告)号：US5628207A

公开(公告)日：1997-05-13

申请号：US628370

申请日：1996-04-05

申请人： Henry E. Howard ,  Dante P. Bonaquist

发明人： Henry E. Howard ,  Dante P. Bonaquist

IPC分类号： F25J3/04 ,  F25J3/00

CPC分类号： F25J3/04351 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04454 ,  F25J2200/32 ,  F25J2200/34 ,  F25J2200/90 ,  F25J2215/52 ,  F25J2235/50 ,  F25J2245/50

摘要： A cryogenic rectification system for producing lower purity gaseous oxygen and high purity oxygen employing a double column and an auxiliary column which upgrades lower pressure column bottom liquid or processes higher pressure column kettle liquid.

摘要翻译： 一种用于生产低纯度气态氧和高纯氧的低温精馏系统，采用双柱和辅助柱，升级低压塔底液体或加工高压柱釜液。

公开(公告)号：US5313800A

公开(公告)日：1994-05-24

申请号：US011605

申请日：1993-02-01

申请人： Henry E. Howard ,  Dante P. Bonaquist ,  William M. Canney ,  William A. Nash

发明人： Henry E. Howard ,  Dante P. Bonaquist ,  William M. Canney ,  William A. Nash

IPC分类号： F25J3/04

CPC分类号： F25J3/04412 ,  F25J3/04678 ,  F25J3/048 ,  F25J3/04848 ,  F25J2290/10 ,  Y10S62/924

摘要： The present invention is a process for maximizing the recovery of argon at high argon recovery rates from an air separation system having a high and low pressure distillation column containing multiple distillation stages of rectification and having a sidearm column for argon recovery. A compositional measurement is made of a process variable at one or more preselected stages of rectification which have been identified as exhibiting high sensitivity to plant process variations. The total nitrogen content in the argon feed may then be computed by simulated mathematical correlation from such compositional measurement.

摘要翻译： 本发明是一种从具有高精馏塔和高压蒸馏塔的空气分离系统以高氩回收率使氩气回收最大化的方法，所述蒸馏塔具有多个精馏馏分，并具有用于回收氩气的侧臂塔。 组成测量由一个或多个预选的精馏阶段的过程变量构成，这些阶段已被确定为对植物过程变化表现出高度敏感性。 然后可以通过来自这种组成测量的模拟数学相关性来计算氩进料中的总氮含量。

公开(公告)号：US10385861B2

公开(公告)日：2019-08-20

申请号：US14883857

申请日：2015-10-15

申请人： Nick J. Degenstein ,  Lee J. Rosen ,  Ahmed F. Abdelwahab ,  Carl L. Schwarz ,  Reh-Lin Chen ,  Henry E. Howard

发明人： Nick J. Degenstein ,  Lee J. Rosen ,  Ahmed F. Abdelwahab ,  Carl L. Schwarz ,  Reh-Lin Chen ,  Henry E. Howard

IPC分类号： F25J3/04 ,  F04D17/12 ,  F04D25/16 ,  F04D27/00 ,  F04D27/02 ,  F04D29/26

摘要： A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.