公开(公告)号：US06253577B1

公开(公告)日：2001-07-03

申请号：US09533252

申请日：2000-03-23

Applicant: Bayram Arman ,  Dante Patrick Bonaquist ,  Joseph Alfred Weber ,  Mark Edward Vincett

Inventor： Bayram Arman ,  Dante Patrick Bonaquist ,  Joseph Alfred Weber ,  Mark Edward Vincett

IPC: F25J300

CPC classification number: F25J3/0409 ,  F25J3/04278 ,  F25J3/04412 ,  F25J3/04678 ,  F25J2270/12 ,  F25J2270/66 ,  Y10S62/912 ,  Y10S62/94

Abstract: A cryogenic air separation process having improved flexibility and operating efficiency for producing elevated pressure gaseous oxygen by vaporizing pressurized liquid oxygen wherein refrigeration generation for the process is decoupled from the flow of process streams and is produced by one or more multicomponent refrigerant fluid circuits.

Abstract translation: 一种低温空气分离方法，其具有改进的灵活性和操作效率，用于通过蒸发加压液氧来产生高压气态氧，其中用于该方法的制冷产生与工艺流的流分离并由一个或多个多组分制冷剂流体回路产生。

公开(公告)号：US5934105A

公开(公告)日：1999-08-10

申请号：US34397

申请日：1998-03-04

Applicant: Dante Patrick Bonaquist ,  Michael James Lockett

Inventor： Dante Patrick Bonaquist ,  Michael James Lockett

IPC: F25J3/04 ,  F25J3/02

CPC classification number: F25J3/04024 ,  F25J3/0409 ,  F25J3/04115 ,  F25J3/04193 ,  F25J3/04303 ,  F25J3/04412 ,  F25J2240/10 ,  F25J2270/04 ,  Y10S62/94

Abstract: A dual feed pressure cryogenic air separation system wherein all the feed air is pressurized to an intermediate pressure and cleaned of high boiling impurities at that intermediate pressure, and a portion further compressed to the high pressure and then cooled against another portion so as to prepare that other portion for the turboexpansion to the low pressure, preferably with the turboexpansion driving the further compression.

Abstract translation: 双进料压力低温空气分离系统，其中所有进料空气被加压到中间压力并在该中间压力下清洗高沸点杂质，并将部分进一步压缩至高压，然后冷却另一部分，从而制备 涡轮膨胀到低压的其他部分，优选地涡轮膨胀驱动进一步的压缩。

公开(公告)号：US5426947A

公开(公告)日：1995-06-27

申请号：US186844

申请日：1994-01-27

Applicant: Maurice Grenier

Inventor： Maurice Grenier

IPC: F25J3/04 ,  F25J3/02

CPC classification number: F25J3/04084 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0409 ,  F25J3/04145 ,  F25J3/042 ,  F25J3/04236 ,  F25J3/04278 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04412 ,  F25J2205/04 ,  F25J2270/90 ,  F25J2290/10 ,  F25J2290/62 ,  Y10S62/913 ,  Y10S62/94

Abstract: All the air to be distilled is compressed to a first high pressure and is thereafter separated into two portions. The first portion, representing at least 70% of the flow, is boosted to a second high pressure and cooled down in a heat exchanger to an intermediate temperature, where a part thereof is work expended to the mean pressure while the remainder is liquefied. The second portion is cooled and liquefied in the heat exchange line, into one or a plurality of flows at one or more pressures between the first and second high pressures.

Abstract translation: 待蒸馏的所有空气被压缩至第一高压，然后分离成两部分。 代表流量的至少70％的第一部分被提升到第二高压并在热交换器中冷却到中间温度，其中其一部分工作消耗到平均压力，而其余部分被液化。 第二部分在热交换管线中冷却和液化，在第一和第二高压之间的一个或多个压力下进入一个或多个流。

公开(公告)号：US5114452A

公开(公告)日：1992-05-19

申请号：US544372

申请日：1990-06-27

Applicant: James R. Dray

Inventor： James R. Dray

IPC: F25J3/04

CPC classification number: F25J3/0409 ,  F25J3/04103 ,  F25J3/04206 ,  F25J3/04296 ,  F25J3/04412 ,  F25J3/04678 ,  F25J2205/02 ,  F25J2215/58 ,  F25J2250/40 ,  F25J2250/50 ,  F25J2250/58 ,  F25J2290/10 ,  Y10S62/94

Abstract: A cryogenic air separation system wherein one portion of the feed air is turboexpanded to generate refrigeration, a second portion is condensed against vaporizing product from the air separation plant, and both portions are fed into the same column to undergo separation.

公开(公告)号：US4555256A

公开(公告)日：1985-11-26

申请号：US490359

申请日：1983-05-02

Applicant: Werner Skolaude ,  Gunnar Eggendorfer

Inventor： Werner Skolaude ,  Gunnar Eggendorfer

IPC: F25J3/04

CPC classification number: F25J3/04218 ,  F25J3/0409 ,  F25J3/04157 ,  F25J3/04224 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04345 ,  F25J3/04357 ,  F25J3/04387 ,  F25J3/04393 ,  F25J3/04412 ,  F25J2205/32 ,  F25J2240/10 ,  F25J2245/02 ,  F25J2245/40 ,  Y10S62/94

Abstract: In the production of gaseous oxygen, a process and apparatus is used which requires low temperature rectification of air. The air is compressed, purified and cooled in a first heat exchanger while a second gas stream is compressed to elevated pressure, and is cooled in a second heat exchanger. Liquid oxygen removed from rectification is pressurized to a desired pressure and is evaporated and heated in heat exchange with the compressed gas stream.

Abstract translation: 在生产气态氧时，需要使用空气的低温整流的方法和装置。 空气在第一热交换器中被压缩，净化和冷却，而第二气流被压缩到升高的压力，并在第二热交换器中冷却。 从精馏中除去的液氧被加压至所需压力，并与压缩气流热交换蒸发并加热。

公开(公告)号：US5438835A

公开(公告)日：1995-08-08

申请号：US230667

申请日：1994-04-21

Applicant: Thomas Rathbone

Inventor： Thomas Rathbone

IPC: F25J3/04 ,  F25J3/02

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5398514A

公开(公告)日：1995-03-21

申请号：US162928

申请日：1993-12-08

Applicant: Mark J. Roberts ,  Neil M. Prosser ,  Robert A. Beddome

Inventor： Mark J. Roberts ,  Neil M. Prosser ,  Robert A. Beddome

IPC: F25J3/04 ,  F25J3/00

CPC classification number: F25J3/042 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04296 ,  F25J3/04412 ,  F25J3/04678 ,  F25J2200/90 ,  F25J2205/02 ,  Y10S62/94

Abstract: A cryogenic rectification system wherein feed partially traverses the primary heat exchanger, thereafter is turboexpanded, and then traverses another portion of the primary heat exchanger reducing the temperature differences between approaching streams within the primary heat exchanger and thus the cycle irreversibilities resulting in lower power requirements.

Abstract translation: 一种低温精馏系统，其中进料部分地穿过主热交换器，然后被涡轮膨胀，然后穿过主热交换器的另一部分，从而降低主热交换器内的接近流之间的温差，从而减少循环不可逆性，导致较低的功率需求。

公开(公告)号：US5329776A

公开(公告)日：1994-07-19

申请号：US153794

申请日：1993-11-17

Applicant: Maurice Grenier

Inventor： Maurice Grenier

IPC: F25J3/04 ,  F25J3/02

CPC classification number: F25J3/04236 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04412 ,  F25J2205/02 ,  F25J2205/04 ,  F25J2215/50 ,  F25J2215/54 ,  F25J2290/10 ,  F25J2290/62 ,  Y10S62/94

Abstract: In this process for the production of gaseous oxygen under pressure by air distillation in a double column, pumping liquid oxygen withdrawn at the bottom of the low pressure column, and vaporization of compressed liquid oxygen by heat exchange with air at high pressure, all the air to be distilled is compressed at the high air pressure, followed by expanding, at the pressure of the mean pressure column, the excess fraction of this air in a turbine which is decelerated by means of an air booster, and at least one liquid product is withdrawn from the apparatus.

Abstract translation: 在这种用于在双柱中通过空气蒸馏在压力下生产气态氧的方法中，泵送在低压塔底部排出的液氧，并通过与空气在高压下进行热交换来蒸发压缩液氧，所有空气 待蒸馏的物料在高空气压力下被压缩，然后在平均压力塔的压力下膨胀涡轮机中借助空气助力器减速的空气的过剩部分，并且至少一种液体产物是 从设备中取出。

公开(公告)号：US4883518A

公开(公告)日：1989-11-28

申请号：US270606

申请日：1988-11-14

Applicant: Werner Skolaude ,  Gunnar Eggendorfer ,  Horst Corduan

Inventor： Werner Skolaude ,  Gunnar Eggendorfer ,  Horst Corduan

IPC: F25J3/04

CPC classification number: F25J3/042 ,  F25J3/04224 ,  F25J3/04278 ,  F25J3/04296 ,  F25J3/04345 ,  F25J3/04357 ,  F25J3/04393 ,  F25J3/04412 ,  F25J2270/90 ,  Y10S62/94

Abstract: In a system for air fractionation by low-temperature rectification, refrigeration is produced in a cooling stage by compression and expansion of the feed air or of nitrogen from rectification. By using the work gained during expansion for compressing only a partial stream of the gas passed through the cooling stage, the system according to this invention operates with increased efficiency and lower operating costs.

Abstract translation: 在通过低温精馏进行空气分馏的系统中，通过进料空气或氮气从精馏的压缩和膨胀在冷却阶段中产生制冷。 通过使用在膨胀期间获得的工作仅压缩通过冷却段的气体的一部分流，根据本发明的系统以更高的效率和更低的运行成本运行。

公开(公告)号：US4410343A

公开(公告)日：1983-10-18

申请号：US334238

申请日：1981-12-24

Applicant: John H. Ziemer

Inventor： John H. Ziemer

IPC: F25J3/04 ,  F25J3/02

CPC classification number: F25J3/04193 ,  F25J3/04296 ,  F25J3/04424 ,  F25J2215/50 ,  Y10S62/94

Abstract: Low purity oxygen is produced by a process which employs a low pressure column and a medium pressure column, wherein the bottoms of the low pressure column are reboiled against condensing air and the resulting condensed air is fed into both the medium pressure and the low pressure column.

Abstract translation: 通过使用低压塔和中压塔的方法生产低纯度氧，其中低压塔的底部对冷凝空气进行再沸腾，并将所得的冷凝空气进料到中压和低压塔 。