Process and device for the production of argon by cryogenic separation of air
    2.
    发明公开
    Process and device for the production of argon by cryogenic separation of air 审中-公开
    用于通过空气的低温分馏回收氩的方法和设备

    公开(公告)号:EP1760415A1

    公开(公告)日:2007-03-07

    申请号:EP05425609.4

    申请日:2005-08-31

    发明人: Bigi, Emanuele

    IPC分类号: F25J3/04

    摘要: A process for producing argon by Iow temperature air fractionation, comprising the following steps: feeding a rectification column of at Ieast one section (12,14) with said air (10); extracting from said rectification column an argon-containing fraction (18) and feeding it to a crude argon column (16); extracting from said crude argon column an argon-containing fraction (22) and feeding it to a nitrogen removal column (24); and extracting from said nitrogen removal column an argon-containing fraction (30) and feeding it to a pure argon column (32).

    摘要翻译: 一种用于通过IOW温度空气分馏生产氩气,其包括以下步骤的过程:在Ieast喂养的精馏柱与所述空气一个部分(12,14)(10); 从所述精馏塔中组分(18),并将其供给到粗氩含氩塔(16)提取; 从所述粗氩塔上提取分数(22),并将其供给到除氮塔(24)含氩; 并从所述除氮塔上含氩馏分(30)中提取,并将其馈送到一个纯氩塔(32)。

    Process for nitrogen liquefaction by recovering the cold derived from liquid methane gasification
    3.
    发明公开
    Process for nitrogen liquefaction by recovering the cold derived from liquid methane gasification 有权
    通过利用从液体甲烷汽化冷氮气液化的方法

    公开(公告)号:EP1469265A1

    公开(公告)日:2004-10-20

    申请号:EP04007031.0

    申请日:2004-03-24

    IPC分类号: F25J1/02 F17C9/04 F25J3/04

    摘要: This process for nitrogen liquefaction by recovering the cold derived from liquid methane gasification has the characteristic of cooling with the liquid methane (1) a cryogenic fluid (5), preferably nitrogen, and then using said cryogenic fluid as coolant fluid (9,10) in two nitrogen compressor units of the nitrogen liquefier, both for the interstage coolers (11,12,13,27,28,29,30,31,32) and for the intake coolers (27) and for the final delivery coolers (19,32) of one of the nitrogen compressor unit.
    The use of nitrogen cooled by the methane enables liquid nitrogen to be produced (3) in a liquefier consisting of the two said compressor units and a cryogenic turbine (17), with a very low specific energy consumption.

    摘要翻译: 这通过回收来自液体甲烷气化得到的冷过程为氮气液化具有与所述液体冷却甲烷(1)将低温流体(5),优选地为氮,然后使用所述低温流体作为冷却剂流体的特性(9,10) 中的氮液化器的两个氮压缩机单元,无论对于间冷却器(11,12,13,27,28,29,30,31,32),并用于进气冷却器(27)和用于最终传送冷却器(19 ,32)中的氮压缩机单元中的一个的。 使用由甲烷冷却氮的使要生产液氮(3)在一个液化器由两个所述压缩机单元和低温涡轮(17),具有非常低的比能量消耗。