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71. 发明公开

EP0624767A1 Process and apparatus for producing oxygen 失效
标题翻译： Verfahren und Apparat zur Herstellung von Sauerstoff。
公开(公告)号：EP0624767A1
公开(公告)日：1994-11-17
申请号：EP94303347.2
申请日：1994-05-10
申请人： THE BOC GROUP, INC.
发明人： Naumovitz, Joseph P.
IPC分类号： F25J3/04
CPC分类号： F25J3/044 , F25J3/04066 , F25J3/0423 , F25J3/04309 , F25J3/04363 , F25J2200/74
摘要： A process and apparatus for separating air in which compressed, purified air is cooled in a heat exchanger 18 and separated in a single rectification column 24 into nitrogen vapour at its top and liquid oxygen at its bottom. A nitrogen stream is withdrawn from the column 24 and is partly condensed in a condenser 32. Fluid from the condenser 32 is passed into a phase separator 36. A stream of the resulting vapour phase is warmed in the heat exchanger 18, and is expanded in a turboexpander 48. The resulting expanded vapour is passed through the heat exchanger 18 from its cold end to its warm end in order to provide refrigeration for the process. A stream of liquid oxygen is withdrawn from the bottom of the column 24, is reduced in pressure by passage through a valve 43, is vaporised by heat exchange with condensing nitrogen in the condenser 32 and is compressed cold in the compressor 54. One part of the compressed oxygen is taken as product, and another part recycled to the column 24. The turboexpander 48 is coupled to and drives the compressor 54.
摘要翻译：一种用于分离空气的方法和装置，其中压缩的净化空气在热交换器18中被冷却并在单个精馏塔24中分离成其顶部的氮蒸汽，其底部的液氧。将氮气流从塔24中取出并在冷凝器32中部分冷凝。来自冷凝器32的流体进入相分离器36.所得气相的流在热交换器18中加热，并在涡轮膨胀机48.所得的膨胀蒸气从其冷端通过热交换器18到其热端，以便为该方法提供制冷。液体氧流从塔24的底部排出，通过阀43通过压力减小，通过与冷凝器32中的冷凝氮进行热交换而蒸发，并在压缩机54中被压缩冷却。一部分将压缩的氧气作为产物，另一部分被再循环到塔24中。涡轮膨胀机48联接到并驱动压缩机54.

72. 发明公开

EP0589646A1 Distillation process for the production of carbon monoxide-free nitrogen 失效
标题翻译： Destillationsstrategienfürdie Herstellung von Kohlenmonoxidfreiem Stickstoff。
公开(公告)号：EP0589646A1
公开(公告)日：1994-03-30
申请号：EP93307392.6
申请日：1993-09-20
申请人： AIR PRODUCTS AND CHEMICALS, INC.
发明人： Agrawal, Rakesh , Modi, Ajay Krishnalal , Kleinberg, William Thomas
IPC分类号： F25J3/04 , F25J3/08
CPC分类号： F25J3/044 , F25J3/04048 , F25J3/0406 , F25J3/04212 , F25J3/04278 , F25J3/04284 , F25J3/04309 , F25J3/04333 , F25J3/04351 , F25J3/04412 , F25J3/04793 , F25J2200/30 , F25J2200/50 , F25J2200/72 , F25J2200/74 , F25J2200/94 , F25J2215/44 , F25J2220/42 , F25J2220/44 , F25J2230/08 , F25J2245/42 , F25J2250/20 , F25J2270/02 , F25J2270/12 , F25J2290/12 , Y10S62/92
摘要： The carbon monoxide content of a nitrogen product of a cryogenic air separation process carried out in a distillation column system having at least one distillation column comprising a rectifying section from which the nitrogen product is produced is reduced by maintaining the ratio of downward liquid to upward vapor flow rate (L/V) in said rectifying section no less than 0.65, preferably greater than 0.75, but less than 1.0 moles per unit time. The required ratio can be accomplished by co-producing less-pure nitrogen as a vapor product from an intermediate location within the distillation column; employing a heat pump in which column liquid is vaporized; employing a heat pump in which the overhead vapor is compressed; employing a heat pump in which the bottoms liquid stream is subcooled; employing a heat pump in which the oxygen-rich waste stream from the top boiler/condenser is compressed; or employing a heat pump in which an external fluid is used as the heat-pump fluid.
摘要翻译：在具有至少一个蒸馏塔的蒸馏塔系统中进行的低温空气分离方法的氮产物的一氧化碳含量通过保持向下的液体向上蒸气的比例而减少，所述蒸馏塔包括产生氮产物的精馏部分所述精馏段中的流速（L / V）不小于0.65，优选大于0.75，但小于1.0摩尔/单位时间。所需的比例可以通过从蒸馏塔内的中间位置共同产生较不纯的氮气作为蒸气产物来实现; 采用柱式液体蒸发的热泵; 采用其中塔顶蒸气被压缩的热泵; 使用其中底部液体流被过冷的热泵; 使用其中来自顶部锅炉/冷凝器的富氧废物流被压缩的热泵; 或使用其中使用外部流体作为热泵流体的热泵。

73. 发明授权

EP0418139B1 Cryogenic air separation process and apparatus 失效
标题翻译：用于空气低温分离的方法和装置。
公开(公告)号：EP0418139B1
公开(公告)日：1993-11-18
申请号：EP90402488.2
申请日：1990-09-11
申请人： LIQUID AIR ENGINEERING CORPORATION
发明人： Ha, Bao V.
IPC分类号： F25J3/04
CPC分类号： F25J3/04309 , F25J3/04303 , F25J3/04321 , F25J3/04424 , F25J2200/54 , F25J2240/42

74. 发明授权

EP0286314B1 Air separation 失效
公开(公告)号：EP0286314B1
公开(公告)日：1992-05-20
申请号：EP88302876.3
申请日：1988-03-30
申请人： The BOC Group plc
发明人： Layland, David John , Lavin, John Terence
IPC分类号： F25J3/04
CPC分类号： F25J3/04309 , F25J3/042 , F25J3/04278 , F25J3/04296 , F25J3/04327 , F25J3/04357 , F25J3/04393 , F25J3/044 , F25J3/0466 , F25J2200/38 , F25J2200/50 , F25J2205/02 , F25J2215/50 , F25J2250/20 , F25J2270/02 , F25J2270/60 , F25J2270/90 , Y10S62/924
摘要： Air is compressed in compressor 200, is reduced in temperature to its dew point by passage through successive heat exchangers 204, 206, 210 and 212 (water and carbon dioxide being removed therefrom in heat exchangers 204 and 206). The air is introduced into a first distillation column 216 through an inlet 218. It is separated into oxygen and nitrogen therein. Nitrogen vapour is withdrawn from the top of the column 216 through outlet 228, is warmed, is compressed in compressors 234 and 236, is cooled, is expanded in expansion turbine 238 and is then passed through a reboiler 220 to provide reboil for the column 216. A resulting liquid stream is passed through a throttling valve 244 and liquid nitrogen is collected in phase separator 230. Some of this liquid nitrogen is returned to the column 216 as reflux, while another part is used to provide product. Argon-enriched oxygen vapour is withdrawn from the column 216 through an outlet 260, and is separated to form argon product in a further distillation column 226 which is reboiled by vapour from the top of the column 216.

75. 发明授权

EP0318564B1 ENHANCED ARGON RECOVERY FROM INTERMEDIATE LINBOIL 失效
标题翻译：来自中级LINBOIL的增强型ARGON恢复
公开(公告)号：EP0318564B1
公开(公告)日：1992-01-02
申请号：EP88905531.5
申请日：1988-06-02
申请人： ERICKSON, Donald Charles
发明人： ERICKSON, Donald Charles
IPC分类号： F25J3/04
CPC分类号： F25J3/04103 , F25J3/0409 , F25J3/04206 , F25J3/04309 , F25J3/04357 , F25J3/04412 , F25J3/04672 , F25J3/04678 , F25J3/0469 , F25J2200/32 , F25J2205/02 , F25J2250/40 , F25J2250/50 , Y10S62/924
摘要： The argon recovery obtainable from a dual pressure cryogenic air distillation plant for production of high purity oxygen is increased beyond present levels without offsetting incurrence of detriments such as lower O2 pressure, lower O2 or N2 recovery, less liquid recovery, or increased energy. This is done by providing an intermediate reflux condenser (208) (component (208) of Figure 2) in the argon sidearm (202b), and providing liquid N2 via valve (209) to said condenser, thereby increasing the reboil up both the argon stripper (202a) and the lower section of the argon sidearm (202b) proportional to the amount of LN2 evaporated in the condenser (208).

76. 发明授权

EP0259070B1 Air separation 失效
公开(公告)号：EP0259070B1
公开(公告)日：1990-11-28
申请号：EP87307389.4
申请日：1987-08-21
申请人： The BOC Group plc
发明人： Atkinson, Timothy David
IPC分类号： F25J3/04
CPC分类号： F25J3/0466 , F25J3/04284 , F25J3/04309 , F25J3/04351 , F25J3/0446 , F25J3/04533 , F25J3/04575 , F25J3/04581 , F25J2200/02 , F25J2200/50 , F25J2205/02 , F25J2235/50 , F25J2235/52 , F25J2235/58 , F25J2240/80 , Y10S62/924

77. 发明公开

EP0350493A4 COMPANDED TOTAL CONDENSATION REBOIL CRYOGENIC AIR SEPARATION. 失效
标题翻译：与全冷凝通过压缩/膨胀再沸器的低温空气分裂。
公开(公告)号：EP0350493A4
公开(公告)日：1990-06-28
申请号：EP88903480
申请日：1988-02-02
申请人： ERICKSON DONALD C
发明人： ERICKSON DONALD CHARLES
IPC分类号： F25J3/04
CPC分类号： F25J3/04103 , F25J3/0409 , F25J3/04206 , F25J3/04284 , F25J3/04296 , F25J3/04309 , F25J3/04418 , F25J3/04424 , F25J3/04715 , F25J2200/08 , F25J2200/32 , F25J2200/50 , F25J2200/54 , F25J2200/90 , F25J2205/02 , F25J2205/04 , F25J2235/50 , F25J2250/40 , F25J2250/42 , F25J2250/50 , F25J2250/52 , Y10S62/924
摘要： In a cryogenic air distillation process for producing medium-to-high purity oxygen plus optional coproduct argon, a new process sequence results in more efficient distillations at reduced supply pressures and full O2 recovery. A minor steam of supply air is additionally compressed by compander (104), cooled, and then reboils column (101) by total condensation in reboiler (105). The liquid air is split into two intermediate reflux streams, one for each column (101) and (102), valves (106) and (107), thereby improving the efficiency of both columns. The air condensing in reboiler (105) is somewhat hotter than that supplied to column (102), due to its higher pressure, which permits a reduction in the main supply pressure.

78. 发明公开

EP0318564A4 ENHANCED ARGON RECOVERY FROM INTERMEDIATE LINBOIL. 失效
标题翻译： ARGONGEWINNUNG DURCH ZWISCHENGESCHALTETES AUFKOCHEN VONFLÜSSIGEMSTICKSTOFF。
公开(公告)号：EP0318564A4
公开(公告)日：1989-09-26
申请号：EP88905531
申请日：1988-06-02
申请人： ERICKSON DONALD C
发明人： ERICKSON DONALD CHARLES
IPC分类号： F25J3/04
CPC分类号： F25J3/04103 , F25J3/0409 , F25J3/04206 , F25J3/04309 , F25J3/04357 , F25J3/04412 , F25J3/04672 , F25J3/04678 , F25J3/0469 , F25J2200/32 , F25J2205/02 , F25J2250/40 , F25J2250/50 , Y10S62/924
摘要： The argon recovery obtainable from a dual pressure cryogenic air distillation plant for production of high purity oxygen is increased beyond present levels without offsetting incurrence of detriments such as lower O2 pressure, lower O2 or N2 recovery, less liquid recovery, or increased energy. This is done by providing an intermediate reflux condenser (208) (component (208) of Figure 2) in the argon sidearm (202b), and providing liquid N2 via valve (209) to said condenser, thereby increasing the reboil up both the argon stripper (202a) and the lower section of the argon sidearm (202b) proportional to the amount of LN2 evaporated in the condenser (208).
摘要翻译：从用于生产高纯度氧气的双压低温空气蒸馏设备获得的氩气回收增加超过目前的水平，而不会抵消诸如较低的O 2压力，较低的O 2或N 2回收，较少的液体回收或增加的能量之类的损害。这是通过在氩气侧臂（202b）中提供中间回流冷凝器（208）（图2的组分（208））和通过阀（209）将液氮提供给所述冷凝器，从而增加氩气汽提塔（202a）和氩侧臂（202b）的下部分与在冷凝器（208）中蒸发的LN2的量成比例。

79. 发明公开

EP0313581A1 NITROGEN PARTIAL EXPANSION REFRIGERATION FOR CRYOGENIC AIR SEPARATION 失效
标题翻译：氮冷却部件弛豫低温空气分离。
公开(公告)号：EP0313581A1
公开(公告)日：1989-05-03
申请号：EP87905060.0
申请日：1987-07-15
申请人： ERICKSON, Donald Charles
发明人： ERICKSON, Donald Charles
IPC分类号： F25J3
CPC分类号： F25J3/04212 , F25J3/04066 , F25J3/0409 , F25J3/04103 , F25J3/042 , F25J3/04206 , F25J3/04303 , F25J3/04309 , F25J3/04357 , F25J3/04393 , F25J3/04412 , F25J3/04418 , F25J3/04442 , F25J2200/06 , F25J2200/54 , F25J2205/04 , F25J2235/42 , F25J2245/42 , F25J2245/50 , F25J2250/20 , F25J2250/40 , F25J2250/42 , F25J2250/50 , F25J2250/52
摘要： Un moyen permet d'obtenir de l'azote très pur et de l'oxygène peu ou moyennement pur (jusqu'à 97 % pur), ou au moins l'un des deux, à un taux de récupération élevé (supérieur à 96 % pour ce qui est de l'oxygène). L'efficacité de la colonne de basse pression est améliorée afin de réduire la consommation d'énergie sans provoquer une diminution du reflux de LN2 disponible. En se référant à la Figure (I), on voit qu'un échangeur de chaleur latente (10) remet en ébullition la colonne de basse pression (3) à une hauteur intermédiaire, la vapeur de tête de N2 de rectification à haute pression (5), partiellement détendue dans le détendeur (9), étant condensée et le liquide du bouilleur évaporé. Le N2 condensé est alors utilisé comme reflux pour la colonne (3) après dépressurisation par la soupape (13).

80. 发明公开

EP0229803A1 PROCEDE ET INSTALLATION DE DISTILLATION D'AIR 失效
标题翻译：方法和装置常压蒸馏。
公开(公告)号：EP0229803A1
公开(公告)日：1987-07-29
申请号：EP86904215.0
申请日：1986-07-09
申请人： L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
发明人： BRUGEROLLE, Jean-Renaud
IPC分类号： F25J3
CPC分类号： F25J3/04351 , F25J3/04284 , F25J3/0429 , F25J3/04303 , F25J3/04309 , F25J3/04321 , F25J3/04393 , F25J3/0446 , F25J3/0466 , F25J3/04678 , F25J3/04709 , F25J2200/02 , F25J2200/04 , F25J2200/08 , F25J2200/32 , F25J2200/34 , F25J2205/30 , F25J2215/50 , F25J2220/50 , F25J2235/42 , F25J2235/50 , F25J2235/52 , Y10S62/924
摘要： De l'oxygène liquide (OL) et de l'azote gazeux (N2MP) sont remélangés de façon à peu près réversible dans une colonne auxiliaire (3); du liquide riche sans argon (LR1) prélevé en un emplacement intermédiaire de cette colonne auxiliaire (3), est remélangé dans un autre tronçon de colonne auxiliaire (4) avec l'azote impur de tête de la colonne basse pression (6), et le gaz de tête de ce tronçon auxiliaire constitue un résiduaire (R1) de l'installation. Application à la production d'argon.

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