Multistage cascade sweep-process for membrane gas separation
    1.
    发明授权
    Multistage cascade sweep-process for membrane gas separation 失效
    用于膜气分离的多级串联扫描过程

    公开(公告)号:US5383957A

    公开(公告)日:1995-01-24

    申请号:US070041

    申请日:1993-06-01

    IPC分类号: B01D53/22 C01B21/04 B01D63/08

    摘要: A nitrogen generator for producing nitrogen gas from air having a plurality of stages of membrane units each containing a plurality of hollow fiber membranes having a feed input at least one of the plurality of membrane units containing a sweep input to inject a sweep gas longitudinally on the external surface of the hollow fiber membranes, the generator further containing:a) a conduit for collecting a non-permeate stream of a membrane stage N and using the same as a feed stream for a membrane stage N+1;b) a conduit for collecting only a permeate stream from at least the membrane stage N, and feeding all of the permeate stream from the membrane stage N to a sweep input of at least one previous membrane stage, such that the sweep gas is injected longitudinally and counter-current to the non-permeate gas on the external surface of the hollow fiber membranes, and that the sweep gas is mixed with the gas permeating through the hollow fiber membranes to make the permeate stream; andc) a conduit for collecting a permeate of a first membrane stage and a non-permeate of the last membrane stage.

    摘要翻译: 一种用于从空气中产生氮气的氮气发生器,所述氮气发生器具有多个膜单元级,每个膜单元包含多个中空纤维膜,所述多个中空纤维膜具有进料输入,所述进料输入至少一个所述膜单元包含扫描输入口, 中空纤维膜的外表面,发生器还包含:a)用于收集膜级N的非渗透物流并使用其作为膜级N + 1的进料流的导管; b)用于仅从至少膜级N收集渗透物流的导管,并且将来自膜级N的所有渗透物流输送到至少一个先前膜级的扫描输入,使得吹扫气体纵向注入 并与中空纤维膜的外表面上的非渗透气体逆流,并且将吹扫气体与渗透中空纤维膜的气体混合以制成渗透物流; 和c)用于收集第一膜阶段的渗透物和最后一个膜级的非渗透物的导管。

    Process for providing a controlled atmosphere inside an enclosure and
having a controlled atmosphere
    2.
    发明授权
    Process for providing a controlled atmosphere inside an enclosure and having a controlled atmosphere 失效
    在环境中提供控制大气并具有受控大气的方法

    公开(公告)号:US5195326A

    公开(公告)日:1993-03-23

    申请号:US824918

    申请日:1992-01-22

    申请人: Christian Barbe

    发明人: Christian Barbe

    摘要: A gas under pressue is sent to a first compartment of a separation module having permeation membrane, the first modified gas mixture which exits from the first compartment being introduced into the enclosure to constitute therein a controlled atmosphere which is removed and circulated in counter-current in the second compartment of the module towards the discharge orifice of the latter so as to substantially recombine the two gaseous modified mixtues before discharging same thereby increasing the performances of the separation module.

    摘要翻译: 将压力下的气体送到具有渗透膜的分离组件的第一隔室中,从第一隔室排出的第一改性气体混合物被引入外壳中以在其中构成受控气氛,其被逆流地除去并循环 模块的第二隔室朝向后者的排放孔,以在排出之前基本上将两种气态改性的混合物重组,从而增加分离模块的性能。

    Process for the treatment of a gaseous mixture by adsorption with
pressure variation
    3.
    发明授权
    Process for the treatment of a gaseous mixture by adsorption with pressure variation 失效
    用压力变化吸附处理气体混合物的方法

    公开(公告)号:US5529611A

    公开(公告)日:1996-06-25

    申请号:US405309

    申请日:1995-03-16

    摘要: A process for treating a gaseous mixture, particularly air, by pressure swing adsorption (PSA), of the type in which three adsorbers (1 to 3) are used in each of which is carried out, for a given nominal production, a cycle comprising the following successive stages, the cycle being offset from one adsorber to the other by a third of the nominal duration (T) of the cycle:(a) a substantially isobaric adsorption phase at a high pressure (PM) of the cycle, by circulation of the mixture through the adsorber in a so-called co-current direction;(b) a desorption phase comprising a stage (b2) of pumping to a low pressure (P.sub.m) of the cycle less than atmospheric pressure, via a vacuum pump (7) of constant speed and continuous operation whose output is in the vicinity of atmospheric pressure; and(c) a repressurization phase of the adsorber to the high pressure of the cycle. During a reduction of the production flow rate, the mean intake pressure of the vacuum pump is raised for the duration of the cycle.

    摘要翻译: 一种通过变压吸附(PSA)处理气态混合物,特别是空气的方法,其中在每一个中进行三个吸附器(1至3)的类型,在给定的名义生产中,包括 在以下连续阶段中,该周期以循环的标称持续时间(T)的三分之一从一个吸附器偏移到另一个:(a)循环的高压(PM)下的基本上等量的吸附相,通过循环 的混合物通过吸附器在所谓的共同电流方向上; (b)解吸阶段,包括通过恒定速度和连续运行的输出为大气附近的恒定速度和连续运行的真空泵(7),泵送到小于大气压的循环的低压(Pm)的阶段(b2) 压力; 和(c)吸附器的再加压阶段到循环的高压。 在减少生产流量的同时,在循环持续时间内提高真空泵的平均进气压力。

    Membrane gas generator in association with bulk storage for increased
flexibility and productivity
    4.
    发明授权
    Membrane gas generator in association with bulk storage for increased flexibility and productivity 失效
    与大容量储存相关的膜式气体发生器,可提高灵活性和生产率

    公开(公告)号:US5266101A

    公开(公告)日:1993-11-30

    申请号:US935167

    申请日:1992-08-26

    摘要: A membrane nitrogen generator adapted to deliver a flow rate of nitrogen gas having a purity at least equal to P.sub.0, which contains:a) a source of compressed nitrogen containing gas having a purity lower than P.sub.0, the source having a maximum flow rate Fm.sub.1 ;b) a varyer connected to the source, which is adapted to vary the flow rate of the source between Fm.sub.1 and 0;c) a nitrogen membrane fed by the source which is capable of delivering a low purity nitrogen gas having a purity P.sub.1, which purity is lower than P.sub.0 at the maximum flow rate Fm.sub.1 ;d) a source of high purity compressed nitrogen gas having a purity which is greater than P.sub.0 which has a controllable flow rate of from 0 to a maximum flow rate value of Fm.sub.2 ;e) a mixer; andf) a purity controller.

    Wallpaper applicator devices and method for its use
    5.
    发明授权
    Wallpaper applicator devices and method for its use 失效
    壁纸涂布器及其使用方法

    公开(公告)号:US4711682A

    公开(公告)日:1987-12-08

    申请号:US929000

    申请日:1986-11-10

    IPC分类号: B44C7/06 E04F13/00

    摘要: A wallpaper applicator for single-handedly applying on a flat surface and in a single continuous stroke the sticky face of a wallpaper. The applicator is characterized in that it eliminates distortion of the wallpaper and formation of air bubbles in between the wallpaper and the applied surface. The device comprises an elongated cross-sectionally polygonal casing in which lies a web of wallpaper; the latter is biased against two of the flat side walls of the casing by a weight rod engaged in the cylindrical hollow defined by the wallpaper web. One casing flat side wall defines a longitudinal slot through which escapes the leading edge portion of the wallpaper.

    摘要翻译: 一种墙纸涂布器,用于单面涂抹在平坦的表面上,并在单一连续的行程中涂抹壁纸的粘性面。 涂抹器的特征在于它消除壁纸的变形并且在壁纸和所施加的表面之间形成气泡。 该装置包括细长的横截面多边形外壳,其中位于壁纸的腹板上; 后者通过接合在由壁纸网限定的圆柱形中空中的配重杆偏压到壳体的两个平坦侧壁。 一个壳体平坦的侧壁限定了一个纵向狭槽,通过该纵向槽逃离壁纸的前缘部分。

    Process for supplying nitrogen by means of semi-permeable membranes or
of separators of gases by adsorption
    7.
    发明授权
    Process for supplying nitrogen by means of semi-permeable membranes or of separators of gases by adsorption 失效
    通过半透膜或气体分离器通过吸附提供氮气的方法

    公开(公告)号:US5472480A

    公开(公告)日:1995-12-05

    申请号:US275404

    申请日:1994-07-15

    申请人: Christian Barbe

    发明人: Christian Barbe

    摘要: A process for supplying nitrogen to at least two user stations, whose requirements as to nitrogen purity are different. Compressed air is passed from an air compressor (12) to at least one air treatment station (13) permitting effecting at least one of the following treatments of oil removal, filtering out a major portion of the particles, drying, and bringing the air to the desired temperature. The compressed air is then sent to a centralized gas separation unit (14), so as to produce at the outlet of the unit impure nitrogen of intermediate purity. The gas from the centralized separation unit (14) is directed to at least two utilization lines (3-5), each comprising a local gas separation unit (6-8), in which the gas is again treated, so as to obtain at the outlet of each local separation unit nitrogen of a purity suitable for the uses of each of the user stations (9, 10) at the end of the line.

    摘要翻译: 向至少两个用户站供应氮气的方法,其对氮气纯度的要求不同。 压缩空气从空气压缩机(12)通到至少一个空气处理站(13),允许至少一个以下的除油处理,过滤大部分颗粒,干燥和使空气进入 所需温度。 然后将压缩空气送至集中式气体分离单元(14),以便在单元的出口处产生中等纯度的不纯氮。 来自集中分离单元(14)的气体被引导至至少两个利用管线(3-5),每个利用管线(3-5)包括局部气体分离单元(6-8),其中再次处理气体,以便获得 每个局部分离单元氮气的出口具有适于在线路末端处的每个用户站(9,10)的使用的纯度。

    Fast response high purity membrane nitrogen generator
    8.
    发明授权
    Fast response high purity membrane nitrogen generator 失效
    快速响应高纯度氮气发生器

    公开(公告)号:US5284506A

    公开(公告)日:1994-02-08

    申请号:US935296

    申请日:1992-08-26

    申请人: Christian Barbe

    发明人: Christian Barbe

    IPC分类号: B01D53/22 B01D71/64 C01B21/04

    CPC分类号: B01D53/22

    摘要: A process for generating a nitrogen-enriched gas from a feed stream of atmospheric air or a mixture of nitrogen which is not continuously supplied to a membrane system, which membrane system comprises a non-permeate side and a permeate side, and being more permeable to oxygen than nitrogen, which process entails feeding the feed stream side of the membrane, and recovering an oxygen enriched gas being recovered on the permeate side of the membrane system while a nitrogen-enriched gas is recovered from the non-permeate side of the membrane, wherein a feed back of nitrogen gas or nitrogen- containing gas having an oxygen gas concentration lower than 21% is supplied to the non-permeate side of the membrane system during at least a part of the period of time where the air feed stream is not supplied to the membrane system thereby avoiding any substantial retrodiffusion of oxygen through the membrane system from the permeate side to the non-permeate side of the membrane during those periods of time where the feed stream is not supplied to the membrane system.

    摘要翻译: 一种从大气空气或不连续供应到膜系统的氮气混合物产生富氮气体的方法,所述膜系统包括非渗透侧和渗透侧,并且对于 氧气比氮气,该过程需要进料膜的进料流侧,并且在从膜的非渗透侧回收富氮气体的同时回收在膜系统的渗透侧回收的富氧气体, 其中将氧气浓度低于21%的氮气或含氮气体的反馈物在空气进料流不是的至少一部分时间内被供应到膜系统的非渗透侧 供应到膜系统,从而避免在这些时期期间通过膜系统的氧从膜的渗透侧到非渗透侧的任何实质性的逆扩散 的时间,其中进料流未被供应到膜系统。

    Membrane nitrogen gas generator with improved flexibility
    10.
    发明授权
    Membrane nitrogen gas generator with improved flexibility 失效
    膜氮气发生器具有改进的灵活性

    公开(公告)号:US5302189A

    公开(公告)日:1994-04-12

    申请号:US935169

    申请日:1992-08-26

    IPC分类号: B01D53/22 B01D63/02 C01B21/04

    摘要: A membrane nitrogen gas generator, containing a feed stream compressor, one or more filtering membranes, each having a permeate side and a non-permeate side, in fluid connection with and downstream of the feed stream compressor, and one or more product storage containers capable of storing a product having a higher purity than is required by customer demand, and which generator is capable of generating an increased flow rate during periods of high demand.

    摘要翻译: 一种膜氮气发生器,其包含进料流压缩机,一个或多个过滤膜,每个过滤膜具有与进料流压缩机流体连接和下游的渗透侧和非渗透侧,以及一个或多个产品储存容器, 存储具有比客户需求所要求的更高纯度的产品,以及哪个发生器能够在高需求期间产生增加的流量。