公开(公告)号：US06637240B1

公开(公告)日：2003-10-28

申请号：US10290561

申请日：2002-11-08

Applicant: John Louis Griffiths ,  Adam Adrian Brostow ,  Declan Patrick O'Connor ,  Swaminathan Sunder ,  Patrick Alan Houghton

Inventor： John Louis Griffiths ,  Adam Adrian Brostow ,  Declan Patrick O'Connor ,  Swaminathan Sunder ,  Patrick Alan Houghton

IPC: F25J300

CPC classification number: F25J3/04636 ,  F25J3/0406 ,  F25J3/04163 ,  F25J3/04242 ,  F25J3/04254 ,  F25J3/044 ,  F25J3/08 ,  F25J2200/02 ,  F25J2200/70 ,  F25J2205/02 ,  F25J2205/20 ,  F25J2205/30 ,  F25J2205/80 ,  F25J2205/84 ,  F25J2210/42 ,  F25J2215/42 ,  F25J2220/40 ,  F25J2235/42 ,  F25J2235/52 ,  F25J2240/22 ,  F25J2240/90 ,  F25J2250/42 ,  F25J2250/52 ,  Y10S62/908 ,  Y10S62/913

Abstract: A process for producing a nitrogen-enriched vapor product from a supply of a nitrogen-rich liquid uses a purifying device and a distillation column having a distillation zone. The process includes the steps of: feeding at least a portion of the supply of the nitrogen-rich liquid to the distillation zone at a first location; feeding a stream of a gas containing nitrogen and at least one contaminant to the purifying device, wherein the gas is cooled by a cryogenic liquid whereby at least a portion of the at least one contaminant condenses, solidifies, or dissolves; eventually feeding at least a portion of the cool gas from the purifying device to the distillation zone at a second location below the first location; withdrawing a stream of the nitrogen-enriched vapor product from the distillation zone; and withdrawing a stream of an oxygen-enriched liquid from the distillation zone.

公开(公告)号：US5931022A

公开(公告)日：1999-08-03

申请号：US940320

申请日：1997-09-30

Applicant: Shuguang Deng ,  Ravi Kumar ,  Ravi Jain

Inventor： Shuguang Deng ,  Ravi Kumar ,  Ravi Jain

IPC: B01D53/02 ,  B01D53/04 ,  B01D53/047 ,  B01J20/08 ,  B01J20/34 ,  F25J1/00

CPC classification number: B01D53/047 ,  B01D2253/104 ,  B01D2256/10 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40009 ,  B01D2259/40056 ,  B01D2259/40062 ,  B01D2259/40081 ,  B01D2259/4009 ,  B01D2259/402 ,  B01D2259/416 ,  B01D53/0476 ,  B01D53/261 ,  Y02C10/08 ,  Y10S62/908

Abstract: An activated alumina adsorbent used in a PSA air prepurification process for removal of carbon dioxide from the air is thermally regenerated when the carbon dioxide content remaining in the adsorbent following an adsorbent regeneration step of the PSA process reaches a certain level.

Abstract translation: 当在PSA方法的吸附剂再生步骤之后残留在吸附剂中的二氧化碳含量达到一定水平时，用于PSA空气预纯化方法中用于从空气中除去二氧化碳的活性氧化铝吸附剂被热再生。

公开(公告)号：US5836172A

公开(公告)日：1998-11-17

申请号：US967582

申请日：1997-11-28

Applicant: Daniel Gary ,  Rene Lardeau ,  Philippe Fraysse ,  Frederic Castellanet

Inventor： Daniel Gary ,  Rene Lardeau ,  Philippe Fraysse ,  Frederic Castellanet

IPC: B01D15/00 ,  B01D53/04 ,  C01B3/50 ,  C01B23/00 ,  F17C7/00 ,  F17C9/00 ,  F17C13/00 ,  F25J3/08

CPC classification number: F17C13/00 ,  B01D15/00 ,  B01D53/04 ,  C01B23/0036 ,  C01B3/506 ,  F17C7/00 ,  F17C9/00 ,  F25J3/08 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/308 ,  B01D2256/16 ,  B01D2256/18 ,  B01D2256/26 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2258/0216 ,  B01D2259/40086 ,  B01D2259/401 ,  B01D2259/416 ,  C01B2203/046 ,  C01B2203/0465 ,  C01B2203/047 ,  C01B2210/0031 ,  C01B2210/0051 ,  C01B2210/0062 ,  F17C2201/0109 ,  F17C2205/0341 ,  F17C2221/011 ,  F17C2221/012 ,  F17C2221/014 ,  F17C2221/016 ,  F17C2221/017 ,  F17C2223/0115 ,  F17C2223/0123 ,  F17C2223/0153 ,  F17C2223/045 ,  F17C2223/047 ,  F17C2227/0393 ,  F17C2265/012 ,  F17C2270/0518 ,  F25J2205/60 ,  F25J2205/84 ,  F25J2215/10 ,  F25J2215/30 ,  F25J2215/32 ,  F25J2215/34 ,  F25J2215/36 ,  F25J2215/58 ,  Y02C10/08 ,  Y02E60/321 ,  Y02P20/152 ,  Y10S62/908 ,  Y10S62/924

Abstract: Process and apparatus for the purification of a cryogenic fluid in liquid, diphase, gaseous or supercritical state, having boiling point Pe, with at least one of its impurities having a boiling point Pe', with Pe'>Pe. The process includes at least one step selected from the group comprised by: a filtration step of at least one impurity in solid state, and an adsorption step of at least one impurity in liquid or gaseous state;and in which there is recovered at least one portion of the cryogenic fluid at least partially purified.

公开(公告)号：US5737926A

公开(公告)日：1998-04-14

申请号：US837409

申请日：1997-04-17

Applicant: Alan Tat Yan Chen

Inventor： Alan Tat Yan Chen

IPC: A61L2/02 ,  A61L2/04 ,  B01D53/85 ,  F17C9/04 ,  F17C9/02

CPC classification number: B01D53/85 ,  A61L2/022 ,  A61L2/04 ,  F17C9/04 ,  F17C2205/0323 ,  F17C2205/0341 ,  F17C2221/011 ,  F17C2221/012 ,  F17C2221/013 ,  F17C2221/014 ,  F17C2221/016 ,  F17C2221/017 ,  F17C2223/0161 ,  F17C2225/0161 ,  F17C2227/0306 ,  F17C2227/0339 ,  F17C2227/0393 ,  F17C2265/01 ,  F17C2270/02 ,  Y02E60/321 ,  Y10S62/908

Abstract: A system for producing cryogenic sterile nitrogen wherein liquid nitrogen is first vaporized and subsequently heated prior to undergoing sterilization, the warm sterilized nitrogen vapor is cooled to effect the vaporization of the liquid nitrogen, and the resulting cooled sterilized nitrogen is condensed to produce the product cryogenic sterile nitrogen. The system may be used to produce other cryogenic sterile cryogens also.

Abstract translation: 一种用于生产低温无菌氮的系统，其中首先将液氮蒸发并随后在进行灭菌之前被加热，将冷的灭菌的氮蒸气冷却以实现液氮的蒸发，并将所得冷却的无菌氮冷凝以产生产物低温 无菌氮。 该系统也可用于生产其他低温无菌冷冻剂。

公开(公告)号：US5730003A

公开(公告)日：1998-03-24

申请号：US834830

申请日：1997-03-26

Applicant: Tu Cam Nguyen ,  Mohamed Safdar Allie Baksh ,  Dante Patrick Bonaquist ,  Joseph Alfred Weber

Inventor： Tu Cam Nguyen ,  Mohamed Safdar Allie Baksh ,  Dante Patrick Bonaquist ,  Joseph Alfred Weber

IPC: B01D53/04 ,  F25J3/04 ,  F25J1/00

CPC classification number: F25J3/04175 ,  B01D53/047 ,  F25J3/0409 ,  F25J3/04103 ,  F25J3/04206 ,  F25J3/04296 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04733 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/104 ,  B01D2259/40001 ,  B01D2259/40066 ,  B01D2259/40081 ,  B01D2259/40083 ,  B01D2259/402 ,  B01D2259/416 ,  F25J2205/60 ,  F25J2230/50 ,  F25J2245/50 ,  F25J2250/40 ,  F25J2250/50 ,  F25J2250/58 ,  Y10S62/908 ,  Y10S62/924

Abstract: A system for producing high purity argon wherein crude argon produced in a cryogenic rectification plant is processed in a pressure swing adsorption unit. Residual gas from the pressure swing adsorption unit is recycled to the cryogenic rectification plant and high purity argon is cooled prior to recovery against oxygen-containing fluid which is subsequently passed into the cryogenic rectification plant.

Abstract translation: 用于生产高纯度氩的系统，其中在低温精馏装置中产生的粗氩在变压吸附装置中进行处理。 来自变压吸附单元的残余气体被再循环到低温精馏装置中，在对含氧流体进行回收之前将高纯度氩气冷却，随后将其通入低温精馏装置。

公开(公告)号：US5711166A

公开(公告)日：1998-01-27

申请号：US787490

申请日：1997-01-22

Applicant: Anish Mehta ,  Sidney Simon Stern

Inventor： Anish Mehta ,  Sidney Simon Stern

IPC: F25J3/04 ,  F25J3/00

CPC classification number: F25J3/044 ,  F25J3/04309 ,  F25J2200/72 ,  F25J2215/40 ,  F25J2240/48 ,  Y10S62/908

Abstract: A method and apparatus of separating air in which the air is rectified wig a single column nitrogen generator which produces a nitrogen stream which is expanded into a refrigerant stream and then taken as a medium pressure product. Oxygen enriched air can be taken as low pressure and medium pressure enriched air products. A stream of oxygen enriched air can be used to regenerate the pre-purification unit and also taken as a wet product.

Abstract translation: 分离空气被整流的空气的方法和装置假发一柱氮气发生器，产生氮气流，该氮气流膨胀成制冷剂流，然后作为中压产物。 富氧空气可以作为低压和中压富集空气产品。 富氧空气流可用于再生预净化单元并且还可以作为湿产品。

公开(公告)号：US5632162A

公开(公告)日：1997-05-27

申请号：US660751

申请日：1996-06-10

Applicant: Jean Billy

Inventor： Jean Billy

IPC: B01D53/04 ,  B01J20/16 ,  C01B32/40 ,  F25J3/02 ,  F25B3/00

CPC classification number: F25J3/0261 ,  C01B31/18 ,  F25J3/0223 ,  F25J3/0233 ,  F25J3/0252 ,  F25J2205/40 ,  F25J2205/60 ,  F25J2280/02 ,  Y10S62/908 ,  Y10S62/92

Abstract: The plant comprises an adsorbent-filled tank (8) permanently interposed in the line (2), between the purification unit (3), operating by adsorption of solidifiable impurities from the gas mixture (5) containing carbon monoxide, and the cryogenic separation unit which delivers pure carbon monoxide at its outlet (6). The adsorbent in the tank (8), advantageously the same as the adsorbent in the adsorbers (4A, 4B) of the purification unit (3), has an affinity for carbon monoxide, thus making it possible to reduce the cyclic variations in the carbon monoxide production delivery rate which results from the cyclic operation of the adsorbers (4A, 4B) of the separation unit (3).

Abstract translation: 植物包括通过吸附来自含有一氧化碳的气体混合物（5）的可固化杂质和在低温分离单元（3）之间永久插入管线（2）中的吸附剂填充的罐（8）之间的净化单元（3） 其在其出口（6）处提供纯一氧化碳。 在罐（8）中的吸附剂有利地与纯化单元（3）的吸附器（4A，4B）中的吸附剂相同，对一氧化碳具有亲和力，因此可以减少碳的循环变化 由分离单元（3）的吸附器（4A，4B）的循环操作产生的一氧化碳产生量。

公开(公告)号：US5551257A

公开(公告)日：1996-09-03

申请号：US955180

申请日：1992-10-01

Applicant: Ravi Jain

Inventor： Ravi Jain

IPC: B01D53/04 ,  C01B21/04 ,  F25J3/04 ,  F25J3/00

CPC classification number: B01D53/0462 ,  C01B21/0466 ,  C01B21/0477 ,  F25J3/04169 ,  F25J3/04242 ,  F25J3/04412 ,  B01D2253/108 ,  B01D2256/10 ,  B01D2257/502 ,  B01D2259/40003 ,  B01D2259/4009 ,  B01D2259/402 ,  C01B2210/005 ,  F25J2205/24 ,  F25J2205/60 ,  F25J2215/44 ,  F25J2220/44 ,  Y10S62/908

Abstract: Apparatus and a process for producing nitrogen or air containing not more than 0.5 ppm by volume of carbon monoxide. A nitrogen stream or air stream containing up to about 100 ppm by volume of carbon monoxide is subjected to cryogenic temperature swing adsorption in an adsorption bed containing calcium-exchanged type X zeolite, type 5A zeolite or 13X zeolite, which removes substantially all of the carbon monoxide from the nitrogen stream or air stream.

Abstract translation: 用于生产氮或空气的装置和方法，其含有不超过0.5ppm体积的一氧化碳。 含有高达约100ppm体积的一氧化碳的氮气流或空气流在含有钙交换型X沸石，5A型沸石或13X沸石的吸附床中进行低温变温吸附，其基本上除去所有的碳 来自氮气流或空气流的一氧化碳。

公开(公告)号：US5463869A

公开(公告)日：1995-11-07

申请号：US289462

申请日：1994-08-12

Applicant: Ravi Kumar ,  William T. Kleinberg

Inventor： Ravi Kumar ,  William T. Kleinberg

IPC: B01D53/047 ,  F25J3/04 ,  F25J3/02

CPC classification number: B01D53/0476 ,  F25J3/04163 ,  F25J3/04181 ,  F25J3/04284 ,  F25J3/04315 ,  F25J3/04375 ,  F25J3/044 ,  F25J3/04412 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40001 ,  B01D2259/4006 ,  B01D2259/40062 ,  B01D2259/416 ,  F25J2200/72 ,  F25J2205/80 ,  F25J2290/12 ,  Y02C10/08 ,  Y10S62/908

Abstract: An integrated adsorption/cryogenic distillation process is set forth for the separation of an air feed. The air feed is passed through a vacuum swing adsorption (VSA) unit to remove impurities comprising water and carbon dioxide which will freeze out at cryogenic temperatures. The VSA sequence includes an adsorbent regeneration step whereby the impurity-saturated adsorbent is purged under vacuum with a purge gas. The resulting impurity-depleted air feed is fed to a cryogenic distillation column for rectification into a gaseous nitrogen overhead and a liquid oxygen bottoms. A waste stream from the distillation column is expanded, warmed against the impurity-depleted air feed to recover its refrigeration and subsequently recycled as the purge gas to the VSA unit. A key to the present invention is that the waste stream is expanded to the required sub-ambient pressure level in the cryogenic portion of the process. This enables one to recover all of the available refrigeration from the cryogenic waste stream prior to using such waste stream as the purge gas for the adsorption portion of the process.

Abstract translation: 提出了一种用于分离空气进料的综合吸附/低温蒸馏方法。 空气进料通过真空挥发吸附（VSA）装置以除去包含水和二氧化碳的杂质，这些杂质将在低温下冻结。 VSA序列包括吸附剂再生步骤，其中杂质饱和吸附剂在真空下用吹扫气体吹扫。 将所得杂质贫化的空气进料加入到低温蒸馏塔中，以精馏成气态氮塔顶馏出物和液氧底物。 来自蒸馏塔的废物流膨胀，对杂质贫化的空气进料进行加热，以恢复其冷冻，随后作为净化气体再循环至VSA装置。 本发明的关键是废物流在该过程的低温部分中膨胀至所需的亚环境压力水平。 这使得能够在使用这种废物流作为过程的吸附部分的吹扫气体之前从低温废物流中回收所有可用的制冷。

公开(公告)号：US5346674A

公开(公告)日：1994-09-13

申请号：US861884

申请日：1992-06-22

Applicant: Peter Weinwurm ,  Paul S. Weinwurm

Inventor： Peter Weinwurm ,  Paul S. Weinwurm

IPC: B01D5/00 ,  B01D53/00 ,  B01D53/75 ,  B01D53/02

CPC classification number: B01D53/75 ,  B01D5/0027 ,  B01D53/002 ,  Y10S62/908

Abstract: A process and apparatus is disclosed for removing impurities from gases such as flue gases. A liquified gas such as nitrogen is introduced into direct contact with the gases to be cleaned of impurities concurrent with the introduction of a sorbent powder for cooling the gas to a temperature in the range of 60.degree. C. to -20.degree. C. and with nucleation precipitation and condensation of heavy metals, salts, acids and hydrocarbons onto the sorbent. A porous and permeable bed of said sorbent is formed through which the gases are drawn for absorption and adsorption of said precipitated and condensed material thereon. The pH of the sorbent is adjusted and maintained in the pH range of 9 to 11.

Abstract translation: PCT No.PCT / CA90 / 00463 Sec。 371日期：1992年6月22日 102（e）日期1992年6月22日PCT 1990年12月21日PCT PCT。 出版物WO91 / 09664 日期1991年7月11日。公开了一种从气体如烟道气中除去杂质的方法和装置。 引入液化气体如氮气，与引入用于将气体冷却至60℃至-20℃的温度的吸附剂粉末同时与待清洁的气体直接接触，并与 重金属，盐，酸和烃的成核沉淀和缩合到吸附剂上。 形成所述吸附剂的多孔和可渗透的床，通过该床吸入气体以吸收和吸附所述沉淀和冷凝材料。 将吸附剂的pH调节并保持在9至11的pH范围内。