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4. 发明公开

EP1214965A2 Method for purifying gases 有权
标题翻译：净化气体的方法
公开(公告)号：EP1214965A2
公开(公告)日：2002-06-19
申请号：EP01129633.2
申请日：2001-12-12
申请人： PRAXAIR TECHNOLOGY, INC.
发明人： Salim, Sateria , Holmer, Arthur Edward , Shrewsbury, Ronald William
IPC分类号： B01D53/04 , C01C1/02 , B01D53/26
CPC分类号： C01C1/024 , C01B21/045 , C01B23/0052 , C01B2210/0031 , C01B2210/0034 , C01B2210/0042 , Y02P20/52
摘要： This invention is directed to a method for purifying an impure gas to produce an ultra-high purity gas comprising the steps of a) passing the impure liquefied gas through a first absorption means to remove impurities from the liquid phase therein to produce a first purified fluid; b) passing the first purified fluid through an evaporation means to remove impurities therein to produce a second purified gas; and c) passing the second purified gas through a second absorption means to remove impurities from the vapor phase therein to produce the ultra-high purity gas.
摘要翻译：本发明涉及一种净化不纯气体以生产超高纯气体的方法，该方法包括以下步骤：a）使不纯的液化气通过第一吸收装置以从其中的液相除去杂质以产生第一净化流体 ; b）使第一纯化流体通过蒸发装置以除去其中的杂质以产生第二纯化气体; 和c）使第二纯化气体通过第二吸收装置以从其中的气相中除去杂质以产生超高纯度气体。

5. 发明公开

EP0996493A1 PROCESS AND PLANT FOR THE SEPARATION OF NITROGEN AND OXYGEN FROM GASES RICH OF NITROGEN AND/OR OXYGEN 失效
标题翻译：方法和装置分离氮气，氧气THAT富含氮和/或氧是
公开(公告)号：EP0996493A1
公开(公告)日：2000-05-03
申请号：EP98938603.2
申请日：1998-06-04
申请人： Italfilo di Milli Ottavio & C. S.A.S.
发明人： MILLI, Ottavio
IPC分类号： B01D53/047 , B01D53/053 , C01B13/02 , C01B21/04
CPC分类号： C01B13/0259 , B01D53/053 , B01D2253/102 , B01D2253/108 , B01D2256/10 , B01D2256/12 , B01D2259/4006 , B01D2259/40081 , B01D2259/402 , C01B21/045 , C01B2210/0046
摘要： Process for the separation of nitrogen or oxygen starting from gases rich of nitrogen and oxygen, preferably air, including the following steps: a) separation of nitrogen/oxygen by means of molecular sieves preferably, filtered and pressurised air flowing from the bottom of a first vessel containing molecular sieves counter current to a flow of pure separated gas; removing of the gas separated in the first vessel and delivering to a buffer tank; simultaneous regeneration of the second bed by means of pressure reduction, purging with a portion of pure separated gas and venting from the bottom of the secondary gas adsorbed; b) pressure equalisation in the two vessels; c) regeneration of the molecular sieves of the first vessel analogously to what described for the second bed. Furthermore, the invention concerns a plant for executing the process.

6. 发明公开

EP0910457A1 VERFAHREN ZUR ADSORPTIVEN TRENNUNG VON LUFT 失效
标题翻译：吸附分离AIR的方法
公开(公告)号：EP0910457A1
公开(公告)日：1999-04-28
申请号：EP97929311.0
申请日：1997-07-01
申请人： BAYER AG , SGI-PROZESS-TECHNIK GmbH
发明人： REISS, Gerhard , AMLINGER, Heinrich
IPC分类号： B01D53 , C01B13 , C01B21
CPC分类号： B01D53/0476 , B01D53/0446 , B01D2253/108 , B01D2256/10 , B01D2256/12 , B01D2257/102 , B01D2257/104 , B01D2259/402 , C01B13/0259 , C01B21/045 , C01B2210/0045 , C01B2210/0046
摘要： The invention concerns an improved method for the separation of oxygen or nitrogen from air according to the vacuum swing adsorption (VSA) process or pressure vacuum swing adsorption (PVSA) process using a vacuum pump system optimized for the desorption of the adsorbed air component. This system comprises a radial flow compressor and a vacuum pump operating according to the displacement principle, in particular a rotary piston compressor.

7. 发明公开

EP0679108A1 APPARATUS AND USE FOR THE OXYGEN ENRICHMENT OF AIR 失效
标题翻译：装置和用于氧气富集的空气
公开(公告)号：EP0679108A1
公开(公告)日：1995-11-02
申请号：EP94905022.0
申请日：1994-01-10
申请人： PPV-VERWALTUNGS AG
发明人： PÖSCHL, Günter
IPC分类号： B01D53 , C01B13 , C01B21 , F02B43
CPC分类号： B01D53/0446 , B01D53/047 , B01D2253/108 , B01D2256/12 , B01D2257/102 , B01D2259/402 , B01D2259/4566 , B01D2259/4575 , C01B13/0259 , C01B21/045 , C01B2210/0046 , F02B43/10 , Y02T10/32
摘要： For the oxygen enrichment of air two containers (11, 11') working according to a pressure change process are provided. Each container (11, 11') is partly filled with a packed zeolite bed (13, 13'). Compressed air is fed to one container via a common closure means (41). At a certain pressure value a chamber (27) disposed in the container (11) opens, with oxygen-enriched air flowing into the chamber. The oxygen-enriched air leaves the container (11) via an ascending pipe (37) and can be used as combustion air in internal combustion engines or the like. The one container (11) adsorbs the nitrogen from the compressed air through its packed zeolite bed (13), while the packed zeolite bed (13') of the other container (11'), the chamber of which is closed, is desorbed. An oscillation generator (25) can be used to cause the packed zeolite beds (13, 13') to oscillate at high frequency and in this way to increase the adsorbing capacity and to accelerate the desorption process.
摘要翻译：为了空气的富氧，提供了根据压力变化过程工作的两个容器（11,11'）。每个容器（11,11'）部分地填充填充的沸石床（13,13'）。压缩空气通过共同的关闭装置（41）被供给到一个容器。在一定压力值下，设置在容器（11）中的腔室（27）打开，富氧空气流入腔室。富氧空气通过上升管（37）离开容器（11），并可用作内燃机等中的燃烧空气。一个容器（11）通过其填充的沸石床（13）吸附压缩空气中的氮气，同时另一个容器（11'）的填充沸石床（13'）（其腔室关闭）被解吸。振荡发生器（25）可以用来使填充的沸石床（13,13'）以高频率振荡并且以这种方式增加吸附能力并加速解吸过程。

8. 发明公开

EP0663229A1 METHOD AND APPARATUS FOR SEPARATING NITROGEN-RICH GAS 失效
标题翻译： VERFAHREN UND VORRICHTUNG ZUR ABTRENNUNG VON STICKSTOFFREICHEN GASEN。
公开(公告)号：EP0663229A1
公开(公告)日：1995-07-19
申请号：EP94921806.9
申请日：1994-07-22
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： KAJI, Shinichi Sumitomo Seita Chemicals Co., Ltd. , HARUNA, Kazuo Sumitomo Seika Chemicals Co., Ltd.
IPC分类号： B01D53/04 , C01B21/04 , B01D53/053
CPC分类号： C01B21/045 , B01D53/0473 , B01D53/053 , B01D2253/116 , B01D2253/25 , B01D2256/10 , B01D2259/40003 , B01D2259/40056 , B01D2259/4006 , B01D2259/40062 , B01D2259/40081 , B01D2259/402
摘要： A method for separating nitrogen-rich gas by a pressure swing adsorption system using an apparatus comprising a plurality of adsorption tanks (1, 2), an equalizing tank (3) and a product storage tank (4), the method comprising the steps of: (a) allowing a predetermined amount of highly pure nitrogen gas from the equalizing tank (3) to flow to an outlet side of the adsorption tank (2) which is in a regenerating process; (b) establishing a communication between outlet sides of the two adsorption tanks (1, 2) with an equalizing pipeline while opening inlet sides of the two adsorption tanks (1, 2) under normal pressure; and (c) following the step (b), causing a certain amount of the highly pure nitrogen gas in the equalizing tank (3) to flow in a reverse direction via the outlet side of the adsorption tank (2) which is going to shift from the regenerating process to an adsorption one while supplying material gas via the inlet side thereof.
摘要翻译：一种使用包括多个吸附罐（1,2），均化罐（3）和产品储存罐（4）的装置通过变压吸附系统分离富氮气体的方法，所述方法包括以下步骤：（a）允许来自均衡罐（3）的预定量的高纯氮气流到再生过程中的吸附罐（2）的出口侧; （b）在常压下打开两个吸附罐（1,2）的入口侧，在均匀的管道上建立两个吸附罐（1,2）的出口侧之间的连通; 和（c）在步骤（b）之后，使均化罐（3）中的一定量的高纯度氮气经由要移动的吸附罐（2）的出口侧沿相反方向流动从再生过程到吸附，同时通过其入口侧供应原料气体。

9. 发明授权

EP0411254B1 Production of dry, high purity nitrogen 失效
标题翻译：生产干燥的，高纯度的氮。
公开(公告)号：EP0411254B1
公开(公告)日：1993-11-10
申请号：EP90108908.6
申请日：1990-05-11
申请人： PRAXAIR TECHNOLOGY, INC.
发明人： Haas, Oscar William , Prasad, Ravi , Smolarek, James
IPC分类号： C01B21/04
CPC分类号： B01D53/229 , C01B21/0438 , C01B21/045 , C01B2210/0062

10. 发明公开

EP0490322A1 Three-stage membrane gas separation process and system 失效
标题翻译： Dreistufiges Membrangastrennungsverfahren und Einrichtung dazu。
公开(公告)号：EP0490322A1
公开(公告)日：1992-06-17
申请号：EP91121099.5
申请日：1991-12-09
申请人： PRAXAIR TECHNOLOGY, INC.
发明人： Prasad, Ravi
IPC分类号： B01D53/22 , C01B21/04
CPC分类号： B01D53/226 , C01B21/045 , C01B23/00
摘要： Very high purity nitrogen is produced by air separation in a three stage membrane system in which the third stage permeate is recycled to the second stage and the membrane surface area is distributed between the stages to achieve high product recovery and process performance. Other gas separations, such as argon from oxygen, can likewise be achieved by thus using a three stage membrane system.
摘要翻译：通过在三级膜系统中通过空气分离产生非常高纯度的氮，其中第三级渗透物被再循环到第二级，并且膜表面积分布在级之间以实现高产品回收和加工性能。其他气体分离，例如来自氧气的氩气也可以通过因此使用三级膜系统来实现。

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