利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

24 条记录 (耗时 0.011 秒)

    VERFAHREN UND VORRICHTUNG ZUR TIEFTEMPERATURZERLEGUNG VON LUFT
    22.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR TIEFTEMPERATURZERLEGUNG VON LUFT 有权

    公开(公告)号：EP2758734A1

    公开(公告)日：2014-07-30

    申请号：EP12762536.6

    申请日：2012-09-20

    申请人： Linde Aktiengesellschaft

    发明人： DEMSKI, Georg ,  ALEKSEEV, Alexander ,  RATHBONE, Thomas ,  GOLOUBEV, Dimitri ,  YAYLI, Ayhan

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04 ,  F25J3/0409 ,  F25J3/04103 ,  F25J3/04157 ,  F25J3/04169 ,  F25J3/04181 ,  F25J3/04206 ,  F25J3/04212 ,  F25J3/04218 ,  F25J3/04303 ,  F25J3/04309 ,  F25J3/04448 ,  F25J3/04454 ,  F25J3/0486 ,  F25J3/04872 ,  F25J3/04878 ,  F25J3/04884 ,  F25J2200/10 ,  F25J2200/54 ,  F25J2205/02 ,  F25J2205/32 ,  F25J2205/34 ,  F25J2205/62 ,  F25J2215/54 ,  F25J2235/42 ,  F25J2235/50 ,  F25J2235/52 ,  F25J2245/50 ,  F25J2250/04 ,  F25J2250/10 ,  F25J2250/40 ,  F25J2250/50

    摘要： The method and the device are used for the cryogenic decomposition of air in a distillation column system for separating nitrogen and oxygen, said system having a first high-pressure column (23), a low-pressure column (25, 26), and three condenser-evaporators, namely a high-pressure column head condenser (27), a low-pressure column bottom evaporator (28), and an auxiliary condenser (29; 228). A first feed air stream is cooled in a main heat exchanger (20, 21). The cooled first feed air stream (22) is introduced into the first high-pressure column (23) under a first pressure. Gaseous head nitrogen (44, 45) from the first high-pressure column (23) is condensed in the high-pressure column head condenser (27). At least one part (47) of the head nitrogen (46) which is condensed in the high-pressure column head condenser (27) is delivered to the first high-pressure column (23) as reflux liquid. A part of the bottom liquid (66) of the low-pressure column (25, 26) is evaporated in the low-pressure column bottom evaporator (28) in indirect heat exchange with a condensing heating fluid (58). A non-evaporated part (67) of the bottom liquid (66) of the low-pressure column (25, 26) is at least partially evaporated in the auxiliary condenser (29; 228). At least one part of the liquid (68) evaporated in the auxiliary condenser (29; 228) is obtained as a gaseous oxygen product (69). The distillation column system for separating nitrogen and oxygen additionally has a second high-pressure column (24). A second feed air stream (35) is cooled in the main heat exchanger (20, 21) and subsequently introduced into the second high-pressure column (24) under a second pressure which is higher than the first pressure. At least one part of the head gas (58) of the second high-pressure column (24) is used as heating fluid in the low-pressure column bottom evaporator (28).

    摘要翻译： 该方法和装置用于蒸馏塔系统中用于分离氮和氧的空气的低温分解，所述系统具有第一高压塔（23），低压塔（25,26）和三 冷凝器 - 蒸发器，即高压塔顶冷凝器（27），低压塔底蒸发器（28）和辅助冷凝器（29; 228）。

    PROCEDE DE SEPARATION D'AIR PAR DISTILLATION CRYOGENIQUE
    23.
    发明公开
    PROCEDE DE SEPARATION D'AIR PAR DISTILLATION CRYOGENIQUE 有权
    VERFAHREN ZUR TRENNUNG VON LUFT DURCH KRYOGENE DESTILLATION

    公开(公告)号：EP2712419A2

    公开(公告)日：2014-04-02

    申请号：EP12714821.1

    申请日：2012-03-21

    申请人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

    发明人： LE BOT, Patrick

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04 ,  F25J3/04054 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04181 ,  F25J3/0429 ,  F25J3/04296 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04478 ,  F25J2205/72

    摘要： In an air-distillation method, purified air is cooled in an exchange line (8) and then sent to a distillation column (12) of a system of columns, and oxygen- and nitrogen-rich fluids are extracted from a column (14) of the system of columns only during the repressurization phase. A purified airflow, constituting between 3% and 20% of the air compressed in the compressor, is used to at least partially pressurize the adsorber completing the regeneration phase thereof, and the airflow compressed in the compressor during the adsorption phase is substantially equal to the airflow compressed in the compressor during the pressurization of the adsorber. A portion of the purified air is sent to a turbine (27) where it is decompressed and then sent into the atmosphere so as to ensure that it is kept at least partially cold during the entire cycle, and the amount of decompressed airflow sent into the air during the pressurization of an adsorber is less than the amount sent into the air during the adsorption phase of the same adsorber.

    摘要翻译： 在空气蒸馏方法中，纯化空气在交换管线中冷却，然后送入柱系统的蒸馏塔，仅在再加压期间从柱系统的塔中提取富氧和富氮流体 相。 构成在压缩机中压缩的空气的3％至20％的净化空气流被用于至少部分地对吸附器进行至少部分加压，从而完成其再生阶段，并且在吸附阶段期间在压缩机中压缩的气流基本上等于 在吸附器加压期间在压缩机中压缩的气流。 净化空气的一部分被送到涡轮机进行减压，然后送入大气中，以确保在整个循环期间将其保持至少部分冷，并且在该期间内将减压气流量送入空气 吸附器的加压小于在相同吸附器的吸附阶段期间送入空气的量。