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    Process and plant for air separation by cryogenic distillation
    1.
    发明授权
    Process and plant for air separation by cryogenic distillation 失效
    通过低温蒸馏进行空气分离的工艺和设备

    公开(公告)号：US5901577A

    公开(公告)日：1999-05-11

    申请号：US53133

    申请日：1998-04-01

    申请人： Martine Pelle ,  Norbert Rieth

    发明人： Martine Pelle ,  Norbert Rieth

    IPC分类号： F25J3/02 ,  F25J3/04

    CPC分类号： F25J3/04096 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04351 ,  F25J3/04387 ,  F25J3/04412 ,  F25J3/04648 ,  F25J2205/02 ,  F25J2240/10 ,  F25J2240/12 ,  Y10S62/91

    摘要： A process and plant for air separation by cryogenic distillation. Air is cooled in a main exchanger and is sent to a distillation column in which it separates into an oxygen-enriched liquid and a nitrogen-enriched vapor. A stream of pressurized liquid coming from the apparatus vaporizes in the main exchanger. The refrigeration necessary for the process is generated by expansion of air in one or more turbines immediately downstream of the main exchanger. The turbine or turbines produces or produce, as output, a stream which is at least 95 percent liquid, preferably 100 percent liquid.

    摘要翻译： 用于通过低温蒸馏进行空气分离的方法和设备。 空气在主交换器中冷却并送入蒸馏塔，在该蒸馏塔中分离成富氧液体和富氮蒸气。 来自设备的加压液流在主交换器中蒸发。 该过程所需的制冷是通过在主交换器的下游的一个或多个涡轮机中的空气膨胀产生的。 涡轮机或涡轮机作为输出产生或产生至少95％液体，优选100％液体的流。

    Process and installation for the separation of a gaseous mixture by cryogenic distillation
    2.
    发明授权
    Process and installation for the separation of a gaseous mixture by cryogenic distillation 失效
    通过低温蒸馏分离气体混合物的工艺和安装

    公开(公告)号：US5548975A

    公开(公告)日：1996-08-27

    申请号：US393265

    申请日：1995-02-23

    申请人： Norbert Rieth ,  Bernard Darredeau ,  Jean-Yves Lehman

    发明人： Norbert Rieth ,  Bernard Darredeau ,  Jean-Yves Lehman

    IPC分类号： F25J3/02 ,  B01D3/14 ,  B01D3/42 ,  B01D53/02 ,  F25J3/00 ,  F25J3/04

    CPC分类号： F25J3/04787 ,  B01D3/14 ,  F25J3/04018 ,  F25J3/04139 ,  F25J3/04187 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04836 ,  F25J2245/40 ,  F25J2290/32

    摘要： Process and installation for the production of variable flow rates of at least one pure component by fractionation of a mixture in a distillation apparatus (15), containing structured packing (17) and dimensioned to handle a nominal flow rate of the mixture at nominal pressure. To obtain higher production than the nominal production, there is increased proportionately to the ratio of the productions, the flow rate of the mixture distilled in the apparatus (15). Also increased is the operating pressure of the apparatus so as to increase the flooding limit of the apparatus under similar proportions. Preferably, the mixture is air. There is a compressor (3) for the mixture to be fractionated designed for nominal capacity and, upstream of the latter, a blower (1). Alternatively, there can be a compressor (3) for the mixture to be fractionated designed for maximum capacity. There is a heat exchange line (9) in which is effected an indirect heat exchange between the mixture to be fractionated which is cooled therein and at least one product of the apparatus (15) which is reheated therein, the heat exchange line being designed for operation at nominal production, and in which the ratio between the number of passages allotted to the mixture to be fractionated and the number of passages allotted to at least one product of the apparatus is variable according to the production regime that prevails.

    摘要翻译： 用于通过在包含规整填料（17）的蒸馏装置（15）中分馏混合物来生产至少一种纯组分的可变流速的方法和装置，其尺寸适于处理在标称压力下混合物的标称流速。 为了获得比标称生产更高的产量，与生产的比例，在装置（15）中蒸馏的混合物的流量成比例地增加。 设备的操作压力也增加，以便以相似的比例增加设备的溢流极限。 优选地，混合物是空气。 有一个压缩机（3）用于混合物被分级设计用于额定容量，并在后者的上游设有鼓风机（1）。 或者，可以有一个压缩机（3），用于混合物被分级设计成最大容量。 存在热交换管线（9），其中在要冷却的待分馏的混合物与其中再加热的装置（15）的至少一种产物之间进行间接热交换，热交换管线设计用于 按名义产量运转，其中分配给要分馏的混合物的通道数之间的比例以及分配给装置的至少一种产品的通道数量根据现行生产制度而变化。

    Process and installation for the production of oxygen and/or nitrogen under pressure
    3.
    发明授权
    Process and installation for the production of oxygen and/or nitrogen under pressure 失效
    在压力下生产氧气和/或氮气的过程和安装

    公开(公告)号：US5515688A

    公开(公告)日：1996-05-14

    申请号：US431851

    申请日：1995-05-01

    申请人： Norbert Rieth

    发明人： Norbert Rieth

    IPC分类号： F25J3/04 ,  F25J3/02

    CPC分类号： F25J3/04315 ,  F25J3/0409 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04412 ,  F25J2200/20 ,  F25J2205/02 ,  Y10S62/913

    摘要： Process and installation for the production of gaseous oxygen and/or gaseous nitrogen under pressure, of the type in which the air is distilled in a double distillation column (10) comprising a low pressure column (12) operating under a low pressure, and a medium pressure column (11) operating under a medium pressure. All the air to be distilled is compressed (in 1,4) to at least one high pressure of air substantially greater than the medium pressure, and the compressed air is cooled to an intermediate temperature. A portion of it is expanded in a turbine (5) to the medium pressure, before introducing it into the medium pressure column (11). The non-work-expanded air is liquified, then introduced after expansion (in 19, 20), into the double column; and at least one liquid product withdrawn from the double column is brought to the production pressure, and this liquid product is vaporized by heat exchange with the air. The low pressure column (12) is operated under pressure; and the residual gas from the head of the low pressure column is expanded in the second turbine (8) after having been partially reheated. The low pressure column (12) is operated under a pressure of about 1.7 to 5 bars, and the medium pressure column (11) under a pressure of about 6.5 to 16 bars.

    摘要翻译： 在压力下生产气态氧气和/或氮气的方法和装置，其中空气在包括在低压下运行的低压塔（12）的双蒸馏塔（10）中蒸馏， 中压塔（11）在中压下运行。 待蒸馏的所有空气被压缩（1,4）至至少一个高于中压的高压空气，并将压缩空气冷却至中间温度。 在涡轮机（5）中将其一部分在将其引入中压塔（11）之前膨胀至中压。 非工作膨胀空气液化，然后在膨胀后（19,20）引入双塔; 并且从双塔排出的至少一种液体产物达到生产压力，并且该液体产物通过与空气的热交换而汽化。 低压塔（12）在压力下运行; 并且在部分再加热之后，来自低压塔的头部的残留气体在第二涡轮机（8）中膨胀。 低压塔（12）在约1.7至5巴的压力下操作，中压塔（11）在约6.5至16巴的压力下操作。

    Process and installation for the production of gaseous oxygen and/or gaseous nitrogen under pressure
    4.
    发明授权
    Process and installation for the production of gaseous oxygen and/or gaseous nitrogen under pressure 失效
    用于在压力下生产气态氧气和/或氮气的过程和安装

    公开(公告)号：US5477689A

    公开(公告)日：1995-12-26

    申请号：US300195

    申请日：1994-08-29

    申请人： Alain Guillard ,  Norbert Rieth

    发明人： Alain Guillard ,  Norbert Rieth

    IPC分类号： F25J3/04 ,  F25J3/02

    CPC分类号： F25J3/04412 ,  F25J3/0409 ,  F25J3/04296 ,  F25J3/04381 ,  F25J3/04393 ,  F25J2205/02 ,  Y10S62/939

    摘要： A process and installation for the production of gaseous oxygen and/or gaseous nitrogen under pressure by distillation of air in a double column (9), which comprises pumping (in 13) at least one liquid product withdrawn from the base of the low pressure column (11), and vaporization (in 8) of the compressed liquid product by heat exchange with the air brought to a high air pressure. All of the air to be distilled is brought to the high air pressure, and the excess fraction of this air is expanded in two turbines in series (5, 6) to the pressure of the medium pressure column (10), the air being partially reheated (in 22) between the two turbines.

    摘要翻译： 一种用于通过蒸馏双塔（9）中的空气在压力下生产气态氧气和/或气态氮的方法和装置，其包括泵送（13）从低压塔底部抽出的至少一种液体产物 （11）和通过与空气进行热交换而使压缩液体产物蒸发（在8中）达到高空气压力。 所有要蒸馏的空气都被送到高空气压力，并且这种空气的过剩部分在两台串联（5,6）的涡轮机中膨胀到中压塔（10）的压力，空气部分地 在两台涡轮机之间重新加热（22）。

    Process and installation for the production of at least one gas from air under pressure
    7.
    发明授权
    Process and installation for the production of at least one gas from air under pressure 失效
    在压力下从空气中生产至少一种气体的过程和安装

    公开(公告)号：US5463870A

    公开(公告)日：1995-11-07

    申请号：US300196

    申请日：1994-08-29

    申请人： Norbert Rieth

    发明人： Norbert Rieth

    IPC分类号： F25J3/04 ,  F25J3/02

    CPC分类号： F25J3/04084 ,  F25J3/04018 ,  F25J3/0409 ,  F25J3/04157 ,  F25J3/04175 ,  F25J3/04296 ,  F25J3/04412 ,  F25J3/04581 ,  F25J3/04618 ,  F25J2200/20 ,  F25J2205/02 ,  F25J2215/52 ,  F25J2230/04 ,  F25J2240/12 ,  F25J2270/04

    摘要： All the entering air is brought to a high pressure and then cooled to an intermediate temperature. At this temperature, a portion of the air is work expanded (in 4) to the medium pressure, and the rest is liquified. The low pressure column operates under a pressure of the order of 1.7 to 5 bars absolute, and its residual gas is expanded in a second turbine (9) after having been reheated to ambient temperature, then further heated (in 7) by heat exchange with the compressed air. Use for the production of impure oxygen under pressure and simultaneously at least one liquid product.

    摘要翻译： 所有进入的空气都进入高压，然后冷却至中间温度。 在该温度下，空气的一部分在中压下工作膨胀（4），其余部分被液化。 低压塔在绝对压力为1.7至5巴的压力下运行，并且在再次加热至环境温度后，残余气体在第二涡轮机（9）中膨胀，然后通过与 压缩空气。 用于在压力下生产不纯的氧气，同时使用至少一种液体产品。

    Process and installation for the production of gaseous oxygen and/or gaseous nitrogen under pressure by distillation of air
    8.
    发明授权
    Process and installation for the production of gaseous oxygen and/or gaseous nitrogen under pressure by distillation of air 失效
    通过空气蒸馏在压力下生产气态氧气和/或气态氮的工艺和装置

    公开(公告)号：US5412953A

    公开(公告)日：1995-05-09

    申请号：US214296

    申请日：1994-03-17

    申请人： Bernard Darredeau ,  Catherine Garnier ,  Alain Guillard ,  Philippe Fraysse ,  Jean-Yves Lehman ,  Norbert Rieth

    发明人： Bernard Darredeau ,  Catherine Garnier ,  Alain Guillard ,  Philippe Fraysse ,  Jean-Yves Lehman ,  Norbert Rieth

    IPC分类号： F25J3/04 ,  F25J3/02

    CPC分类号： F25J3/04393 ,  F25J3/0409 ,  F25J3/04157 ,  F25J3/04175 ,  F25J3/04278 ,  F25J3/04296 ,  F25J3/04345 ,  F25J3/04357 ,  F25J3/04412 ,  F25J2205/02 ,  F25J2210/04 ,  F25J2245/02 ,  F25J2245/40 ,  F25J2270/90

    摘要： Process and installation for the production of gaseous oxygen and/or gaseous nitrogen under pressure, of the type in which air is distilled in a double distillation column (11) comprising a low pressure column (13) operating under a so-called low pressure, and a medium pressure column (12) operating under a so-called medium pressure. All the air to be distilled is compressed (in 1, 3, 7)to at least one high air pressure substantially greater than the medium pressure, and the compressed air is cooled to an intermediate temperature, and a portion of it is expanded in a turbine (8) to the medium pressure, before introducing it into the medium pressure column (12). The air which has not been expanded is liquefied, then introduced after expansion (in 20, 21), into the double column. At least one liquid product withdrawn from the double column is brought to the production pressure, and this liquid product is vaporized by heat exchange with at least one portion of the air to be distilled in the course of cooling. An additional cycle fluid withdrawn from the double column (11) or destined for this latter, is reheated, compressed (in 3; 30, 31) to a high cycle pressure, cooled, a fraction thereof expanded (in 8; 35) with the production of external work, and the rest of the compressed additional cycle fluid is liquefied.

    摘要翻译： 用于在压力下生产气态氧气和/或气态氮的方法和装置，其中空气在包括在所谓低压下运行的低压塔（13）的双蒸馏塔（11）中蒸馏， 和在所谓中压下运行的中压塔（12）。 要蒸馏的所有空气被压缩（在1,3,7）至基本上大于中压的至少一个高空气压力，并且将压缩空气冷却至中间温度，并且其一部分在 将涡轮（8）引入中压塔（12）中。 未膨胀的空气液化，然后在膨胀（20,21）后引入双塔。 从双塔中取出的至少一种液体产物达到生产压力，并且在冷却过程中与待蒸馏的至少一部分空气进行热交换使该液体产物蒸发。 从双柱（11）中取出或注射用于后者的另外的循环流体被再加热，压缩（在3; 30,31中）至高循环压力，冷却，其部分膨胀（8; 35），其中 生产外部工作，其余的压缩附加循环流体被液化。