公开(公告)号：US5666825A

公开(公告)日：1997-09-16

申请号：US708013

申请日：1996-08-30

申请人： Bernard Darredeau ,  Jean-Yves Lehman ,  Jean-Marc Peyron

发明人： Bernard Darredeau ,  Jean-Yves Lehman ,  Jean-Marc Peyron

IPC分类号： C21C5/28 ,  F25J3/04

CPC分类号： F25J3/0449 ,  C21C5/28 ,  C21C5/285 ,  F25J3/0409 ,  F25J3/04303 ,  F25J3/04351 ,  F25J3/04357 ,  F25J3/04412 ,  F25J3/04545 ,  F25J3/04563 ,  F25J3/04575 ,  F25J3/04593 ,  F25J3/046 ,  F25J3/04606 ,  F25J3/04793 ,  F25J3/04896 ,  F25J3/04927 ,  F25J2240/80 ,  Y02E20/16 ,  Y02E20/18 ,  Y02P10/34 ,  Y10S62/913 ,  Y10S62/915

摘要： A process and installation for the separation of air in a cryogenic distillation apparatus (24) comprising a distillation column (30, 42) and in which the supplied air is separated to produce a fraction rich in oxygen and a fraction rich in nitrogen as products. The purities of these products are maintained substantially constant during variations of demand of either product or of the flow rate or of the pressure of the supplied air by introducing an excess of liquid rich in nitrogen into the distillation apparatus when the demand for the product or the flow rate of the supplied air increases, and by withdrawing an excess of liquid rich in nitrogen from the distillation apparatus, and storing this liquid, when the demand for the product or the flow rate of the supplied air decreases. The apparatus comprises a medium pressure column (30) and a low pressure column (42) and a reflux conduit (44; 11, 12) which permits a reflux liquid to be withdrawn from the medium pressure column (30) and to be injected into the low pressure column (42).

公开(公告)号：US5355680A

公开(公告)日：1994-10-18

申请号：US136276

申请日：1993-10-15

申请人： Bernard Darredeau ,  Maurice Grenier ,  Catherine Garnier ,  Francois Venet

发明人： Bernard Darredeau ,  Maurice Grenier ,  Catherine Garnier ,  Francois Venet

IPC分类号： F25J3/04 ,  F25J3/00

CPC分类号： F25J3/044 ,  F25J3/04254 ,  F25J3/04284 ,  F25J3/04509 ,  F25J2210/42 ,  F25J2240/44 ,  F25J2290/10 ,  F25J2290/62 ,  Y10S62/913

摘要： In this process of the liquid nitrogen/rich liquid HPN swing type, the connection between the head of the column (4) and the liquid nitrogen holding tank (7) is effected, for the two flow directions of the liquid nitrogen, by a single conduit (12) equipped with a pressure reducing device (13). The direction and the flow rate of the liquid nitrogen flow are controlled by the variations of the pressure of the column, and the holding tanks of liquid nitrogen and rich liquid are maintained at constant pressures.

摘要翻译： 在这种液氮/富液体HPN摆动式的这个过程中，柱（4）的头部和液氮容纳槽（7）之间的连接在液氮的两个流动方向上通过单个 配备有减压装置（13）的导管（12）。 液氮流量的方向和流量由柱压力的变化控制，液氮和富液体的保持槽保持恒压。

公开(公告)号：US5337569A

公开(公告)日：1994-08-16

申请号：US31490

申请日：1993-03-15

申请人： Bernard Darredeau

发明人： Bernard Darredeau

IPC分类号： F17C6/00 ,  F17C9/00 ,  F25J3/04

CPC分类号： F25J3/04678 ,  F17C6/00 ,  F17C9/00 ,  F25J3/0423 ,  F25J3/04412 ,  F25J3/04793 ,  F17C2270/0509 ,  F25J2235/06 ,  F25J2245/40 ,  F25J2245/42 ,  Y10S62/913

摘要： Process and installation for transferring a liquid, via a rising conduit (6, 9, 11, 12) provided with an expansion valve (7, 10, 13), from a first distillation column (2), operating at a first pressure, to equipment (3), particularly a second distillation column, operating at a pressure lower than the first pressure. There is injected into the rising conduit, downstream of the expansion valve, a lift gas available at a pressure greater than the pressure created by a column of liquid between the point of injection of the gas and the point of introduction of the liquid into the equipment (3). The lift gas is available at the pressure of the first distillation column (2) and is injected into the liquid in the rising column above the point of withdrawal of this liquid. There is used as lift gas a gas withdrawn from a point in the first column (2) and so chosen as not to modify substantially the composition of the transferred liquid, or a portion of the air feed to the installation can be used for this purpose.

摘要翻译： 通过设置有从第一蒸馏塔（2）在第一压力下操作的膨胀阀（7,10,13）的上升导管（6,9,11,12）将液体转移到 设备（3），特别是在低于第一压力的压力下操作的第二蒸馏塔。 在膨胀阀下游的上升管道中注入一个提升气体，该提升气体的压力大于在气体注入点与将液体引入设备的点之间的一列液体产生的压力 （3）。 提升气体在第一蒸馏塔（2）的压力下可用，并且在上升塔中的液体中注入高于该液体的提取点。 用作提升气体的是从第一塔（2）中的点排出的气体，并且被选择为不基本上改变所转移的液体的组成，或者可以使用到该装置的空气进料的一部分用于该目的 。

公开(公告)号：US5214924A

公开(公告)日：1993-06-01

申请号：US808159

申请日：1991-12-13

申请人： Michael Karthaus ,  Klaus Hermanns ,  Peter Hermanns

发明人： Michael Karthaus ,  Klaus Hermanns ,  Peter Hermanns

IPC分类号： B01D5/00 ,  F26B21/14 ,  F26B25/00

CPC分类号： B01D5/0054 ,  B01D5/0039 ,  B01D5/0051 ,  F26B21/14 ,  F26B25/006 ,  Y10S62/913

摘要： In a method and an apparatus for avoiding or reducing trouble-induced time delays in solvent recovery from production processes, apart from the solvent circuit and apart from the supplying of the locks with carrier gas, when necessary via at least one separate supply conduit a metered amount of pure carrier gas is supplied to the production plant and at the same time via at least one separate discharge conduit a substantially corresponding amount of mixture of carrier gas and solvent is withdrawn.

摘要翻译： 在用于避免或减少生产过程中的溶剂回收中的故障引起的时间延迟的方法和装置中，除了溶剂回路以及除了用载体气体供应锁外，还必须经由至少一个单独的供应管道将计量的 纯载体的量被提供给生产设备，同时通过至少一个单独的排放导管，基本相应量的载气和溶剂的混合物被抽出。

公开(公告)号：US5157927A

公开(公告)日：1992-10-27

申请号：US673518

申请日：1991-03-22

申请人： Francois Darchis ,  Francois Venet ,  Jean-Louis Girault ,  Maurice Grenier ,  Patrick Jozon

发明人： Francois Darchis ,  Francois Venet ,  Jean-Louis Girault ,  Maurice Grenier ,  Patrick Jozon

IPC分类号： F25J3/04

CPC分类号： F25J3/044 ,  F25J3/04018 ,  F25J3/04254 ,  F25J3/04818 ,  F25J3/04824 ,  F25J3/04836 ,  F25J3/04951 ,  F25J3/04963 ,  F25J2210/42 ,  F25J2230/02 ,  F25J2250/40 ,  F25J2250/42 ,  F25J2270/904 ,  F25J2290/60 ,  F25J2290/62 ,  Y10S62/913

摘要： As soon as the apparatus is started, a flow of liquid nitrogen which is at least equal to the nominal flow of gaseous nitrogen is introduced in the head portion of the column, then the flow of liquid nitrogen is adjusted to a small fraction of this nominal flow. Application to the production of a flow of gaseous nitrogen which is variable and moderate.

摘要翻译： 一旦装置开始，至少等于标称气态氮流量的液氮流被引入塔的头部，然后将液氮流量调节到该标称流量的一小部分 流。 适用于生产可变和适度的气态氮气流。

公开(公告)号：US5060480A

公开(公告)日：1991-10-29

申请号：US605496

申请日：1990-10-30

申请人： Bernard Saulnier

发明人： Bernard Saulnier

IPC分类号： F25J1/02

CPC分类号： F25J1/0232 ,  F25J1/0017 ,  F25J1/0221 ,  F25J2210/42 ,  F25J2235/42 ,  F25J2240/12 ,  F25J2270/16 ,  Y10S62/913

摘要： Gaseous oxygen to be cooled passes through an exchanger which is cooled with compressed liquid nitrogen, at least a portion of the vaporized nitrogen which is warmed up in the exchanger being treated in a turbine and thereafter reintroduced into the exchanger. Application for example to the storage in liquid form of excess oxygen under pressure conveyed by a distribution network with variable load.

摘要翻译： 要冷却的气态氧通过用压缩液氮冷却的交换器，在交换机中被加热的至少一部分蒸发的氮气在涡轮机中处理，然后再次引入交换器。 例如以可变负载的分配网络传送的压力下以液体形式存储过量氧的应用。

公开(公告)号：US4869741A

公开(公告)日：1989-09-26

申请号：US193975

申请日：1988-05-13

申请人： Roger M. McGuinness ,  Nellie Cilen

发明人： Roger M. McGuinness ,  Nellie Cilen

IPC分类号： F25J3/08

CPC分类号： F25J3/08 ,  F25J2200/02 ,  F25J2200/04 ,  F25J2200/30 ,  F25J2200/50 ,  F25J2215/56 ,  F25J2270/12 ,  F25J2270/42 ,  F25J2290/62 ,  Y10S62/913

摘要： The present invention is a process for the production of 99.999+% pure oxygen. The process comprises a cryogenic distillation system which removes impurities from oxygen. The process can be operated independently of an air separation unit by using an external source to provide reboil and condensing duties for the distillation column.

公开(公告)号：US4671813A

公开(公告)日：1987-06-09

申请号：US741969

申请日：1985-05-21

申请人： Akira Yoshino

发明人： Akira Yoshino

IPC分类号： F17C9/04 ,  F25J3/04 ,  F25J3/02

CPC分类号： F25J3/044 ,  F17C9/04 ,  F25J3/0426 ,  F25J3/04636 ,  F25J3/04824 ,  F17C2201/0109 ,  F17C2203/0391 ,  F17C2221/011 ,  F17C2221/014 ,  F17C2221/031 ,  F17C2223/0123 ,  F17C2223/0161 ,  F17C2270/0518 ,  F25J2200/74 ,  F25J2205/60 ,  F25J2210/42 ,  F25J2245/42 ,  F25J2250/42 ,  F25J2290/10 ,  F25J2290/62 ,  Y10S62/908 ,  Y10S62/913

摘要： A producing apparatus of highly pure nitrogen gas which is used in electronic industry for manufacturing silicon semiconductors.Conventional nitrogen gas producing apparatus of low temperature separation method and of PSA method are subjected to troubles frequently, the cost of the obtained product nitrogen gas is high, yet the purity is not very high.By the apparatus of this invention, the liquefied nitrogen storage means (15) is connected to the heat exchangers (13, 14) through the inlet channel (16), the compressed air reaching the heat exchangers (13, 14) through the air compressor (9) and the impurity removing means (12) is cooled down to ultra low temperature by using the evaporation heat of the liquefied nitrogen then is sent into the rectifying column (15), and the nitrogen is taken out in gas form by utilizing the difference in the boiling point and oxygen is left in liquid form.The obtained nitrogen gas is combined with the gassified liquid nitrogen from the liquefied nitrogen storage means (15) and made into product nitrogen gas.Highly pure nitrogen, therefore, can be produced at a low cost and with almost no trouble of the apparatus.

摘要翻译： PCT No.PCT / JP84 / 00151 Sec。 371日期1985年5月21日第 102（e）日期1985年5月21日PCT提交1984年3月29日PCT公布。 第WO85 / 04466号公报 1985年10月10日。一种用于制造硅半导体的电子工业中的高纯氮气的制造装置。 常规的低温分离方法和PSA方法的氮气制备装置经常发生故障，所得产物氮气的成本高，纯度不高。 通过本发明的装置，液化氮存储装置（15）通过入口通道（16）连接到热交换器（13,14），压缩空气通过空气压缩机到达热交换器（13,14） （9）和杂质去除装置（12）通过使用液化氮的蒸发热将其冷却至超低温，然后被送入精馏塔（15），氮气以气体形式通过利用 沸点和氧气的差异留在液体中。 将获得的氮气与来自液化氮存储装置（15）的发泡液氮组合并制成产物氮气。 因此，高纯度的氮可以以低成本生产，并且几乎没有装置的麻烦。

公开(公告)号：US4529425A

公开(公告)日：1985-07-16

申请号：US516840

申请日：1983-07-25

申请人： Brian A. McNeil

发明人： Brian A. McNeil

IPC分类号： F25J3/04

CPC分类号： F25J3/04509 ,  F25J3/04309 ,  F25J3/04412 ,  F25J3/04678 ,  F25J2235/42 ,  F25J2235/50 ,  Y10S62/913

摘要： A plant for producing gaseous oxygen which plant comprises a heat exchanger (6) for cooling feed air, a double distillation column (7) having a high pressure column (8) for receiving at least part of said feed air, and a low pressure column (15), a liquid oxygen storage vessel (19) communicating with said low pressure column (15) and a liquid storage vessel (37) communicating with said high pressure column (8), characterized in that said plant further comprises an expander (27) arranged to expand vapor from said high pressure column (8) and pass the expanded vapor through said heat exchanger (6) and further characterized in that said plant comprises means to control the flow of vapor through said expander (27).

摘要翻译： 一种用于生产气态氧的装置，其包括用于冷却进料空气的热交换器（6），具有用于容纳至少部分所述进料空气的高压塔（8）的双蒸馏塔（7）和低压塔 （15），与所述低压塔（15）连通的液体储氧容器（19）和与所述高压塔（8）连通的液体储存容器（37），其特征在于，所述设备还包括膨胀机（27） ），其布置成从所述高压塔（8）膨胀蒸气并使膨胀的蒸气通过所述热交换器（6），并且其特征还在于，所述设备包括控制通过所述膨胀器（27）的蒸气流的装置。

公开(公告)号：US4270938A

公开(公告)日：1981-06-02

申请号：US966447

申请日：1978-12-04

申请人： Wallace B. Schmidt ,  William W. Lewis ,  Alex Edmiston ,  Gernot Klauser

发明人： Wallace B. Schmidt ,  William W. Lewis ,  Alex Edmiston ,  Gernot Klauser

IPC分类号： F25J3/02 ,  G21F9/00 ,  G21F9/02 ,  F25J3/08

CPC分类号： F25J3/028 ,  G21F9/02 ,  F25J2205/20 ,  F25J2205/60 ,  F25J2205/82 ,  F25J2210/40 ,  F25J2215/34 ,  F25J2215/36 ,  Y10S62/913 ,  Y10S62/915 ,  Y10S62/919 ,  Y10S62/925

摘要： In a process for decontaminating a nuclear process off-gas stream, oxygen and oxides of nitrogen are removed by catalytic reaction with hydrogen. The feed gas stream is then passed serially through a drier, a carbon dioxide adsorber and a xenon adsorber to sequentially remove water, CO.sub.2 and xenon therefrom. The feed gas exiting the xenon adsorber is passed to a krypton recovery process wherein krypton is concentrated to a first level in a primary distillation column, partially evaporated to increase concentration thereof and is brought to a concentration of approximately 90 mol % or greater in a second distillation column thereby enabling efficient storage of a radioactive krypton product. The xenon gas removed from the main feed stream in the xenon adsorber is passed to a freezeout heat exchange device to concentrate xenon to approximately 99% or greater, balance krypton. The minor fraction of krypton may then be removed from such xenon-rich product in a distillation tower with the xenon product being stored in gas cylinders or the like.

摘要翻译： 在净化核工艺废气流的过程中，通过与氢的催化反应除去氧和氮的氧化物。 然后将进料气流连续通过干燥器，二氧化碳吸附器和氙吸附器，以依次从其中除去水，CO 2和氙。 离开氙吸附器的进料气体被送入氪回收方法，其中氪在一次蒸馏塔中浓缩至一级，部分蒸发以提高其浓度，并在一秒钟内达到约90mol％或更高的浓度 蒸馏塔，从而能够有效地储存放射性氪产品。 从氙吸附器中的主进料流中除去的氙气被传送到一个冷冻热交换装置，以将氙浓缩至大约99％或更大，平衡氪。 然后可以将氪产物的少量部分从蒸馏塔中的这种富氙产品中除去，并将氙产品储存在气瓶等中。