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公开(公告)号：US5669958A
公开(公告)日：1997-09-23
申请号：US608743
申请日：1996-02-29
IPC分类号： B01D53/00 , B01D53/22 , B01D69/02 , B01D71/24 , B01D71/44 , B01D71/70 , F25J3/02 , F25J3/06 , B01D53/047
CPC分类号： B01D53/228 , B01D53/002 , B01D53/22 , B01D53/226 , B01D53/229 , B01D69/02 , B01D71/24 , B01D71/44 , B01D71/70 , F25J3/0209 , F25J3/0233 , F25J3/0242 , F25J3/0257 , F25J3/061 , F25J3/0635 , F25J3/0645 , F25J2205/40 , F25J2205/80 , F25J2240/12 , F25J2270/04
摘要： A membrane separation process for treating a gas stream containing methane and nitrogen, for example, natural gas. The separation process works by preferentially permeating methane and rejecting nitrogen. We have found that the process is able to meet natural gas pipeline specifications for nitrogen, with acceptably small methane loss, so long as the membrane can exhibit a methane/nitrogen selectivity of about 4, 5 or more. This selectivity can be achieved with some rubbery and super-glassy membranes at low temperatures. The process can also be used for separating ethylene from nitrogen.
摘要翻译： 一种用于处理含有甲烷和氮气的气流的膜分离方法，例如天然气。 分离过程通过优先渗透甲烷和排除氮气而起作用。 我们发现，该方法能够满足氮气的天然气管道规格，具有可接受的小的甲烷损失，只要膜可以显示出约4,5或更高的甲烷/氮选择性。 这种选择性可以通过一些橡胶状和超级玻璃膜在低温下实现。 该方法也可用于从氮气中分离乙烯。
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公开(公告)号：US5688307A
公开(公告)日：1997-11-18
申请号：US608706
申请日：1996-02-29
申请人： Ingo Pinnau , Kaaeid Lokhandwala , Phuong Nguyen , Scott Segelke
发明人： Ingo Pinnau , Kaaeid Lokhandwala , Phuong Nguyen , Scott Segelke
IPC分类号： B01D53/22
CPC分类号： B01D53/228 , B01D2257/7022 , Y02C20/20
摘要： A process for separating hydrocarbon gases of low boiling point, particularly methane, ethane and ethylene, from nitrogen. The process is performed using a membrane made from a super-glassy material. The gases to be separated are mixed with a condensable gas, such as a C.sub.3+ hydrocarbon. In the presence of the condensable gas, improved selectivity for the low-boiling-point hydrocarbon gas over nitrogen is achieved.
摘要翻译： 从氮气分离低沸点烃特别是甲烷，乙烷和乙烯的烃气体的方法。 该方法使用由超级玻璃状材料制成的膜进行。 待分离的气体与可冷凝气体如C3 +烃混合。 在可冷凝气体的存在下，实现了对低沸点烃气体对氮气的选择性的改善。
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公开(公告)号：US5611841A
公开(公告)日：1997-03-18
申请号：US536522
申请日：1995-09-29
CPC分类号： B01D63/103 , B01D53/22 , B01D63/10 , B01D2257/702 , B01D2313/086 , B01D2313/143
摘要： A gas-separation method for controlling vapor emissions. The method employs a spiral-wound membrane module, adapted to provide one or more feed-side baffles in the feed channel. The method may be used to control vapor emissions from a volatile liquid, and is particularly useful to control fuel vapors emitted during fuel transfer operations.
摘要翻译： 用于控制蒸汽排放的气体分离方法。 该方法采用螺旋卷绕膜组件，适于在进料通道中提供一个或多个进料侧挡板。 该方法可用于控制来自挥发性液体的蒸汽排放，并且特别适用于控制在燃料转移操作期间排出的燃料蒸气。
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公开(公告)号：US5843691A
公开(公告)日：1998-12-01
申请号：US779735
申请日：1996-12-31
申请人： Joel Douglas , Ernest Kiser , Michael F. Tomasco , Remedios Dato , Edward G. Rice , Deborah P. Tuohy , Mark Maxson , Zbigniew Witko , Scott Segelke
发明人： Joel Douglas , Ernest Kiser , Michael F. Tomasco , Remedios Dato , Edward G. Rice , Deborah P. Tuohy , Mark Maxson , Zbigniew Witko , Scott Segelke
CPC分类号： G01N33/66 , C12Q1/54 , G01N33/521 , G01N33/523 , G01N33/526 , G01N33/558
摘要： A multilayer reagent test strip measures the concentration of analyte in a liquid sample that is applied to it. The sample is guided to a number of assay areas arrayed along the strip, where the analyte can react with a reagent to cause a color change. Each assay area also includes an inhibitor for the color-change reaction. The inhibitor concentration increases in successive assay areas; thus, the number of areas that change color is a measure of the analyte concentration. The test strip is particularly adapted for measuring glucose in a whole blood sample. In a preferred embodiment, the sample is guided to the assay areas along a path formed by crushing selected areas of a membrane, and the assay areas are uncrushed areas of the membrane.
摘要翻译： 多层试剂测试条测量施加于其上的液体样品中分析物的浓度。 将样品引导到沿着条带排列的多个测定区域，其中分析物可以与试剂反应以引起颜色变化。 每个测定区域还包括用于变色反应的抑制剂。 连续测定区域的抑制剂浓度增加; 因此，改变颜色的区域的数量是分析物浓度的量度。 测试条特别适用于测量全血样品中的葡萄糖。 在优选的实施方案中，将样品引导到沿着通过破碎膜的选定区域形成的路径的测定区域，并且测定区域是膜的未破碎区域。
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