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    Olefin plant refrigeration system
    1.
    发明申请
    Olefin plant refrigeration system 有权
    烯烃厂制冷系统

    公开(公告)号：US20030192342A1

    公开(公告)日：2003-10-16

    申请号：US10342998

    申请日：2003-01-15

    发明人： Vitus Tuan Wei ,  Qi Ma ,  James Tzong-Chaur Wu ,  Charles Sumner

    IPC分类号： F25J001/00 ,  F25J003/00

    CPC分类号： F25J3/0252 ,  F25J3/0219 ,  F25J3/0233 ,  F25J3/0238 ,  F25J2210/12 ,  F25J2215/60 ,  F25J2215/62 ,  F25J2270/12 ,  F25J2270/18 ,  F25J2270/66 ,  F25J2270/902 ,  Y10S62/913

    摘要： The refrigeration system for an ethylene plant comprises a closed loop tertiary refrigerant system containing methane, ethylene and propylene. The tertiary refrigerant from a compressor final discharge is separated into a methane-rich vapor fraction and two levels of propylene-rich liquids so as to provide various temperatures and levels of refrigeration in various heat exchange stages while maintaining a nearly constant refrigerant composition flowing back to the compressor and with the bulk of the total return refrigerant flow going to the first stage compressor section. This tertiary system can also be applied to an ethylene plant with a high pressure demethanizer.

    摘要翻译： 用于乙烯装置的制冷系统包括含有甲烷，乙烯和丙烯的闭环三级制冷剂系统。 来自压缩机最终排放物的三级制冷剂被分离成富含甲烷的蒸气馏分和两级富含丙烯的液体，以便在各种热交换阶段中提供各种温度和水平的制冷，同时保持几乎恒定的制冷剂组成流回 压缩机和总返回制冷剂的大部分流入第一级压缩机段。 该三级体系也可应用于具有高压脱甲烷塔的乙烯装置。

    Air distillation apparatus and air distillation method
    2.
    发明授权
    Air distillation apparatus and air distillation method 失效
    空气蒸馏装置和空气蒸馏法

    公开(公告)号：US6155078A

    公开(公告)日：2000-12-05

    申请号：US136965

    申请日：1998-08-20

    申请人： Kazuhiko Miyashita ,  Tadatoshi Aida

    发明人： Kazuhiko Miyashita ,  Tadatoshi Aida

    IPC分类号： F25J3/04 ,  F25J1/00

    CPC分类号： F25J3/0486 ,  F25J3/04157 ,  F25J3/04218 ,  F25J3/04254 ,  F25J3/044 ,  F25J3/04412 ,  F25J3/04793 ,  F25J3/04836 ,  F25J2200/74 ,  F25J2205/02 ,  F25J2210/42 ,  F25J2210/50 ,  F25J2245/40 ,  F25J2250/02 ,  F25J2250/40 ,  F25J2250/42 ,  F25J2250/50 ,  F25J2270/90 ,  F25J2290/62 ,  Y10S62/905 ,  Y10S62/913

    摘要： In an air distillation apparatus having a main heat exchanger 7 for cooling down feed air, a rectification column 9S comprising a rectifying portion 13 for separating the thus-cooled feed air to an oxygen-enriched component and a nitrogen component and a condenser 35S for partially condensing the latter, and a liquid nitrogen storage tank 31S for supplying liquid nitrogen by way of a supply valve V3, anda transport route 18 for transporting an oxygen-enriched liquid flowing down from said rectifying portion 13 to the bottom into said condenser 35S, the said oxygen-enriched liquid is not reserved at the bottom of the column. Control means include a liquid level detection means for detecting the height of a liquid level of said oxygen-enriched liquid reserved in said condenser 35S; and a control means LIC for controlling the opening degree of the supply valve V3, on the basis of the output therefrom, so that the liquid level of said oxygen-enriched liquid reserved in said condenser is kept almost at a set level.

    摘要翻译： 在具有用于冷却进料空气的主热交换器7的空气蒸馏装置中，提供精馏塔9S，该精馏塔9S包括用于将如此冷却的进料空气分离成富氧组分和氮组分的精馏部分13S和部分冷凝的冷凝器35S 冷凝后者，以及用于通过供给阀V3供给液氮的液氮储存箱31S和用于将从精馏部13向下流动的富氧液体输送到冷凝器35S的输送路径18， 所述富氧液体不保留在塔的底部。 控制装置包括液位检测装置，用于检测在所述冷凝器35S中保留的所述富氧液体的液面高度; 以及根据其输出控制供给阀V3的开度的控制装置LIC，使得保留在所述冷凝器中的所述富氧液体的液位几乎保持在设定水平。

    Process and apparatus for the variable production of a gaseous pressurized product
    3.
    发明授权
    Process and apparatus for the variable production of a gaseous pressurized product 失效
    用于气态加压产品可变生产的方法和设备

    公开(公告)号：US5953937A

    公开(公告)日：1999-09-21

    申请号：US983572

    申请日：1998-03-23

    申请人： Horst Corduan ,  Horst Altmeyer

    发明人： Horst Corduan ,  Horst Altmeyer

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04103 ,  F25J3/0409 ,  F25J3/04224 ,  F25J3/04309 ,  F25J3/04357 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04509 ,  F25J2205/02 ,  Y10S62/913

    摘要： Feed air is fed to a rectifying system (14, 15) for low-temperature separation, from which a liquid fraction (31, 32) is taken off and introduced into a first reservoir tank (33). The pressure of a variable rate of the liquid fraction (34) is increased (35). The liquid fraction (36) is evaporated under the elevated pressure by indirect heat exchange (12) and obtained as a gaseous pressurized product (37). A heat-transport medium circulates in a refrigeration cycle which has a cycle compressor (41, 42). A first partial stream (45) of the heat-transport medium (44) compressed in the cycle compressor (41, 42) is fed to the indirect heat exchange (12) to evaporate the liquid fraction (36) and is liquefied, at least in part, in the course of this. A second partial stream (59) of the heat-transport medium (44) compressed in the cycle compressor (41, 42) is expanded (43) so as to perform work. Liquefied heat-transport medium (45, 48) is buffered in a second reservoir tank (49).

    摘要翻译： PCT No.PCT / EP96 / 03175 Sec。 371日期：1998年3月23日 102（e）1998年3月23日PCT PCT 1996年7月18日PCT公布。 公开号WO97 / 04279 日期1997年2月6日将进料空气供给到用于低温分离的精馏系统（14,15），从其中取出液体馏分（31,32）并引入第一储存罐（33）。 液体馏分（34）的可变速率的压力增加（35）。 液体馏分（36）在升高的压力下通过间接热交换（12）蒸发并作为气体加压产物（37）获得。 热传输介质在具有循环压缩机（41,42）的制冷循环中循环。 将在循环压缩机（41,42）中压缩的热传输介质（44）的第一部分流（45）送入间接热交换器（12）以蒸发液体馏分（36），至少液化 在一定程度上，在这个过程中。 在循环压缩机（41,42）中压缩的热传输介质（44）的第二部分流（59）被扩展（43）以进行工作。 液化的热输送介质（45,48）被缓冲在第二储罐（49）中。

    High purity nitrogen and oxygen gas production equipment
    6.
    发明授权
    High purity nitrogen and oxygen gas production equipment 失效
    高纯氮气和氧气生产设备

    公开(公告)号：US4853015A

    公开(公告)日：1989-08-01

    申请号：US258063

    申请日：1988-10-14

    申请人： Akira Yoshino

    发明人： Akira Yoshino

    IPC分类号： F25J3/04 ,  F25J1/02

    CPC分类号： F25J3/0486 ,  F25J3/04218 ,  F25J3/04254 ,  F25J3/0443 ,  F25J3/04454 ,  F25J3/04824 ,  F25J2200/34 ,  F25J2200/54 ,  F25J2205/60 ,  F25J2210/42 ,  F25J2210/50 ,  F25J2215/44 ,  F25J2250/40 ,  F25J2250/42 ,  F25J2250/50 ,  F25J2280/02 ,  F25J2290/62 ,  Y10S62/913

    摘要： There is provided an apparatus for manufacturing nitrogen gas and oxygen gas of very high purity by cryogenic liquefaction, and without using an expansion turbine. Supercooled and compressed air is sent to a distilling tower where it is mixed with and cooled by the latent heat of vaporization of liquid nitrogen from any external source. Utilizing the difference between their boiling points, nitrogen is taken out as gas while oxygen remains as liquid. The oxygen is concentrated in an oxygen condenser and then further concentrated in an oxygen distilling tower mixed with liquid oxygen from an external source as the refrigerant.

    摘要翻译： 提供了一种用于通过低温液化制造具有非常高纯度的氮气和氧气的装置，并且不使用膨胀涡轮机。 过冷和压缩的空气被送到蒸馏塔，在那里与来自任何外部源的液氮的蒸发潜热混合并冷却。 利用其沸点之间的差异，氮气作为气体取出，而氧气保持液态。 将氧浓缩在氧气冷凝器中，然后进一步浓缩在与作为制冷剂的外部源的液氧混合的氧蒸馏塔中。

    Highly pure nitrogen gas producing apparatus
    7.
    发明授权
    Highly pure nitrogen gas producing apparatus 失效
    高纯氮气生产设备

    公开(公告)号：US4617040A

    公开(公告)日：1986-10-14

    申请号：US673748

    申请日：1984-11-06

    申请人： Akira Yoshino

    发明人： Akira Yoshino

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04824 ,  F25J3/042 ,  F25J3/04254 ,  F25J3/0426 ,  F25J3/044 ,  F25J3/04624 ,  F25J2200/50 ,  F25J2200/74 ,  F25J2205/60 ,  F25J2210/42 ,  F25J2215/44 ,  F25J2250/10 ,  F25J2290/62 ,  Y10S62/913

    摘要： A producing apparatus of highly pure nitrogen gas which is used in electronic industry for manufacturing silicon semi-conductors. 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 (23) is connected to rectifying column (15) through the inlet channel (24), the ultra low temperature compressed air supplied into the rectifying column (15) through the air compression means (9), removing means (12) and heat exchangers (13) (14) is cooled further by the evaporating heat of the liquefied nitrogen, the nitrogen is taken out in gas form by utilizing the difference in boiling point, and oxygen is left as liquid. The obtained nitrogen gas is combined with the gassified liquid nitrogen from the liquefied nitrogen storage means (23) and made into product nitrogen gas. Highly pure nitrogen gas can be produced at a low cost and with almost no trouble of the apparatus.

    Plant for producing gaseous nitrogen
    8.
    发明授权
    Plant for producing gaseous nitrogen 失效
    用于生产气态氮的设备

    公开(公告)号：US4526595A

    公开(公告)日：1985-07-02

    申请号：US538256

    申请日：1983-10-03

    申请人： Brian A. McNeil

    发明人： Brian A. McNeil

    IPC分类号： F25J3/04 ,  F25J3/02

    CPC分类号： F25J3/04284 ,  F25J3/04321 ,  F25J3/044 ,  F25J3/04412 ,  F25J3/04509 ,  F25J2235/42 ,  F25J2235/50 ,  Y10S62/913

    摘要： A plant for producing gaseous nitrogen, which plant comprises a heat exchanger (6) for cooling feed air, a distillation column (8) for receiving at least part of said feed air, a vessel (21), a reflux condenser (12) disposed in said vessel (21) and arranged to receive, in use, vapor from said distillation column (8) and return liquid reflux thereto, a line (18,20) connecting the lower portion of said distillation column (8) to said vessel (21) and having an expansion valve (19) mounted therein, a line (14) for withdrawing nitrogen product from said distillation column (8) and bringing said nitrogen product into heat exchange with said feed air, a crude liquid oxygen (LOX) storage tank (27) communicating with said vessel (21), a liquid nitrogen (LIN) storage tank (34) communicating with said distillation column (8), a line (22) for conveying waste gas from said vessel (21), means to warm said waste gas, an expander (24) to expand said waste gas, means to control the flow of waste gas through said expander, and means to effect heat exchange between the expanded waste gas and the feed air.

    摘要翻译： 一种用于生产气态氮的设备，该设备包括用于冷却进料空气的热交换器（6），用于容纳至少部分所述进料空气的蒸馏塔（8），容器（21），设置回流冷凝器（12） 在所述容器（21）中并且布置成在使用中接收来自所述蒸馏塔（8）的蒸气并将液体返回到其中，将所述蒸馏塔（8）的下部连接到所述容器（18）的管线 21），并且具有安装在其中的膨胀阀（19），用于从所述蒸馏塔（8）中抽出氮产物并使所述氮产物与所述进料空气进行热交换的管线（14），粗液氧（LOX）储存器 与所述容器（21）连通的罐（27），与所述蒸馏塔（8）连通的液氮（LIN）储罐（34），用于输送来自所述容器（21）的废气的管线（22） 暖气说废气，膨胀机（24）扩大废气，意味着控制废气的流动 粗糙的膨胀机，以及在膨胀的废气和进料空气之间进行热交换的装置。