APPARATUS AND METHOD FOR PURIFYING GASES AND METHOD OF REGENERATING THE SAME
    1.
    发明申请
    APPARATUS AND METHOD FOR PURIFYING GASES AND METHOD OF REGENERATING THE SAME 审中-公开
    用于净化气体的装置和方法及其再生方法

    公开(公告)号:US20160091245A1

    公开(公告)日:2016-03-31

    申请号:US14496821

    申请日:2014-09-25

    IPC分类号: F25J3/08

    摘要: A method and device for purifying a process gas mixture, such as a cryogen gas, in which impurity components of the mixture are removed by de-sublimation via cryo-condensation. The gas mixture is cooled to a temperature well below the condensation temperature of the impurities, by direct exchange of the gas mixture with a cooling source disposed in a first region of the device. The de-sublimated or frozen impurities collect about the cooling region surfaces, and ultimately transferred to a portion of the device defining an impurities storage region. The output-purified gas is transferred from the impurities storage region, is optionally passed through a first micrometer sized filter, through a counter-flow heat exchanger, and ultimately up to an output port at room temperature. A method of purging the collected impurities and regenerating the device is also disclosed.

    摘要翻译: 一种纯化工艺气体混合物如冷冻剂气体的方法和装置,其中混合物的杂质成分通过冷冻冷凝通过去升华除去。 通过将气体混合物与设置在装置的第一区域中的冷却源直接交换而将气体混合物冷却至远低于杂质的冷凝温度的温度。 去升华或冷冻的杂质围绕冷却区域表面收集,并最终转移到限定杂质储存区域的器件的一部分。 输出纯化的气体从杂质储存区域转移,任选地通过第一微米尺寸的过滤器,通过逆流热交换器,并且最终在室温下通过输出端口。 还公开了一种清除收集的杂质并再生该装置的方法。

    Light gas component separation from a carbon dioxide mixture
    2.
    发明授权
    Light gas component separation from a carbon dioxide mixture 有权
    轻质气体组分与二氧化碳混合物分离

    公开(公告)号:US07201019B2

    公开(公告)日:2007-04-10

    申请号:US10991458

    申请日:2004-11-19

    IPC分类号: F25J3/00

    摘要: A method of separating one or more light components, such as helium, from a carbon dioxide containing stream. A two-phase stream is obtained, at least in part, by cooling a pressurized feed stream to at least partially condense such stream. The stream that is subsequently degassed to produce a first vapor stream enriched in the light component(s) and a first liquid stream containing an entrained fraction of the light component(s). The first liquid stream is expanded to create another two-phase stream that is degasified to produce a second vapor stream that is also enriched in the light component(s) and a second liquid stream having an enriched carbon dioxide content. The second liquid stream is repressurized and vaporized. In case of a supercritical feed, the pressurized feed stream is expanded after having been cooled. Thereafter, the feed is degassed to produce the light component enriched vapor stream and a liquid stream enriched in the carbon dioxide. The resultant vapor streams, enriched in the light component(s) may then be further processed to isolate the light components.

    摘要翻译: 从含二氧化碳的流中分离一种或多种轻组分如氦的方法。 至少部分地通过冷却加压进料流以至少部分地冷凝该流而获得两相流。 随后脱气以产生富含光组分的第一蒸气流和含有轻组分夹带部分的第一液流。 将第一液体流膨胀以产生另外的两相流,其被脱气以产生还富含轻组分的第二蒸气流和具有富二氧化碳含量的第二液流。 第二液体流被再加压和蒸发。 在超临界进料的情况下,加压进料流在冷却后膨胀。 此后,将进料脱气以产生富含轻质成分的蒸气物流和富含二氧化碳的液体物流。 然后可以进一步处理富含光成分的所得蒸汽流以分离光组分。

    Method and installation for purifying and recycling helium and use in optical fibre manufacture
    3.
    发明申请
    Method and installation for purifying and recycling helium and use in optical fibre manufacture 审中-公开
    用于净化和回收氦气并用于光纤制造的方法和安装

    公开(公告)号:US20040050094A1

    公开(公告)日:2004-03-18

    申请号:US10399718

    申请日:2003-09-22

    摘要: The invention concerns a method and an installation for purifying impure helium. Said method consists in subjecting the helium to at least two successive steps: (a) cryogenic refrigeration of impure helium so as to eliminate by condensation at least part of the main impurities it contains and recuperating helium with intermediate purity containing residual impurities; and (b) permeation of at least part of the helium with intermediate purity derived form step (a) so as to eliminate at least part of said residual impurities and recuperating helium with final purity higher than said intermediate purity. Said method and said installation are useful for purifying impure helium recuperated at the output of an optical fibre cooling chamber, prior to the reintroduction of the resulting purified helium into said chamber so as to recycle the helium.

    摘要翻译: 本发明涉及净化不纯氦的方法和装置。 所述方法包括使氦至少连续两个步骤:(a)不纯氦的低温冷冻,以便通过冷凝至少部分其含有的主要杂质并使含有残余杂质的中等纯度的氦回收; 和(b)至少部分氦气的渗透,其具有步骤(a)的中间纯度衍生形式,以便消除至少部分所述残余杂质和使具有高于所述中间纯度的最终纯度的氦回收。 所述方法和所述安装在将所得纯化氦再次引入所述室之前,用于净化在光纤冷却室的输出端恢复的不纯氦,从而再循环氦。

    Helium purification method and apparatus
    4.
    发明授权
    Helium purification method and apparatus 失效
    HELIUM净化方法和装置

    公开(公告)号:US3792591A

    公开(公告)日:1974-02-19

    申请号:US3792591D

    申请日:1970-03-24

    发明人: COLLINS S

    IPC分类号: F25J3/08 F25J1/00 F25J3/00

    摘要: Method and apparatus for removing condensable gaseous impurities from helium gas. The impure helium is cooled by indirect heat exchange with cold pure helium to condense out impurities. The fluid flow within the purifying heat exchanger is automatically controlled and cooling of the impure stream is periodic, being carried out during those periods when the heat exchanger registers a temperature within a predetermined range in its coldest section. Warm pure helium is used for periodic warmup to remove condensed impurities. The purification system is conveniently integrated into a cryostat such as that described in U.S. Pat. No. 2,458,894 or U.S. Pat. No. 3,250,079.

    摘要翻译: 从氦气中除去可冷凝气态杂质的方法和设备。 通过与冷纯氦进行间接热交换来冷却不纯的氦,以冷凝杂质。 净化热交换器内的流体流动被自动控制,并且不纯的流的冷却是周期性的,这是在热交换器将温度控制在其最冷部分中的预定范围内的温度期间进行的。 温暖的纯氦气用于定期预热以除去冷凝的杂质。 净化系统方便地集成到低温恒温器中,例如美国专利No. 美国专利第2,458,894号或美国专利 第3,250,079号。

    Recovery of gases
    5.
    发明授权
    Recovery of gases 失效
    恢复气体

    公开(公告)号:US3643452A

    公开(公告)日:1972-02-22

    申请号:US3643452D

    申请日:1969-08-20

    摘要: A light gas, namely hydrogen or helium, of increased purity is obtained from a gaseous mixture consisting predominantly of the light gas by passing the mixture through a rotating gas centrifuge under conditions such that gaseous impurities are condensed and a light gas stream of increased purity is recovered. The process may be applied to a light gas concentrate obtained from a gaseous mixture by separation of the constituents other than the light gas by low-temperature condensation, in which case a gas expansion turbine used to produce refrigeration for the process may be used to drive the gas centrifuge.

    摘要翻译: 通过使混合物通过旋转气体离心机,在气态杂质冷凝的条件下,由主要由轻质气体组成的气体混合物获得纯度提高的轻质气体,即氢气或氦气, 恢复。 该方法可以应用于由气体混合物获得的轻质气体浓缩物,通过低温冷凝除掉轻质气体以外的组分,在这种情况下,用于制造该方法的气体膨胀涡轮机可用于驱动 气体离心机。