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    Method and apparatus for separating and recovering perfluoro compound
    2.
    发明授权
    Method and apparatus for separating and recovering perfluoro compound 失效
    用于分离和回收全氟化合物的方法和设备

    公开(公告)号：US06482251B1

    公开(公告)日：2002-11-19

    申请号：US09926044

    申请日：2001-12-26

    申请人： Fumio Kawasaki ,  Rosuke Matsubayashi

    发明人： Fumio Kawasaki ,  Rosuke Matsubayashi

    IPC分类号： B01D5322

    CPC分类号： B01D53/226 ,  B01D2257/204 ,  B01D2257/2066 ,  B01D2257/708 ,  C07C17/38 ,  Y02C20/30 ,  Y02P20/154 ,  Y02P20/155 ,  C07C19/08

    摘要： A PFC separation recovery method to separate and recover PFC by raising the pressure of diluted mixed gas consisting of PFC gas and diluent gas, and subsequently contacting the gas with a membrane which permeates more diluent gas than PFC gas, and to separate it into a permeable gas flow rich in diluent gas and a non-permeable gas flow rich in PFC gas; and a PFC separation recovery system therefor. Moreover, the method repeatedly separates the non-permeable gas flow into another permeable gas flow and another non-permeable gas flow by contacting the gas flow with another membrane having the same functions as those of the membrane; subsequently detecting the pressure or flow rate of the other permeable gas flow; and controlling the flow rate of the other non-permeable gas flow so as to make the pressure or flow rate constant.

    摘要翻译： PFC分离回收方法，通过提高由PFC气体和稀释气组成的稀释混合气体的压力来分离和回收PFC，随后使气体与渗透比PFC气体更多的稀释气体的膜接触，并将其分离成可渗透的 富含稀释气体的气流和富含PFC气体的不可渗透气流; 及其PFC分离回收系统。 此外，该方法通过使气流与具有与膜相同功能的另一膜接触来将不渗透气体流重复分离成另一可渗透气体流和另一种不可渗透气体流; 随后检测另一个可渗透气体流的压力或流量; 并控制其他不可渗透气流的流量，使压力或流量恒定。

    Process and system for separation and recovery of perfluorocompound gases
    3.
    发明申请
    Process and system for separation and recovery of perfluorocompound gases 失效
    分离和回收全氟化合物气体的方法和系统

    公开(公告)号：US20010029841A1

    公开(公告)日：2001-10-18

    申请号：US09768262

    申请日：2001-01-25

    发明人： Yao-En Li ,  Joseph E. Paganessi ,  David Vassallo ,  Gregory K. Fleming

    IPC分类号： B01D053/22 ,  B01D047/00 ,  B01D053/04

    CPC分类号： B01D53/225 ,  B01D53/22 ,  B01D53/226 ,  B01D53/229 ,  B01D2257/204 ,  B01D2257/2066 ,  C07C17/38 ,  Y02C20/30 ,  Y02P20/154 ,  Y02P20/155 ,  C07C19/08

    摘要： Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least once glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.

    摘要翻译： 提供了从气体混合物中回收至少一种全氟化合物气体的方法和系统。 在一个实施方案中，本发明的方法包括以下步骤：a）提供包含至少一种全氟化合物气体和至少一种载气的气体混合物，所述气体混合物处于预定压力; b）提供至少一次具有进料侧和渗透侧的玻璃状聚合物膜; c）使至少一个膜的进料侧与气体混合物接触; d）以基本上等于预定压力的压力从作为非渗透物流的膜的进料侧排出基本上包含至少一种全氟化合物气体的浓缩气体混合物; 和e）作为渗透物流从膜的渗透侧排出基本上包含至少一种载气的贫化气体混合物。

    Method of removing chlorofluorocarbons from the atmosphere
    7.
    发明授权
    Method of removing chlorofluorocarbons from the atmosphere 失效
    从大气中除去氯氟烃的方法

    公开(公告)号：US4997632A

    公开(公告)日：1991-03-05

    申请号：US529997

    申请日：1990-05-29

    申请人： Paul G. Rodewald

    发明人： Paul G. Rodewald

    IPC分类号： B01D53/86 ,  B01J23/06 ,  C01B7/01 ,  C01B7/19 ,  C01B32/50

    CPC分类号： B01J23/06 ,  B01D53/8662 ,  C01B31/20 ,  C01B7/01 ,  C01B7/191 ,  Y02C20/30 ,  Y02P20/155

    摘要： A method of using photoactive semiconductors to reduce atmosphere chlorofluorocarbons by dispersing photoactive semiconductor particles, namely titanium dioxide, zinc oxide or zinc sulfide into the stratosphere, activating the particles through exposure to ambient light, accumulating chlorofluorocarbons by chemisorption into the semiconductor, precipitating the reacted particles from the stratosphere and hydrolyzing the chlorofluorocarbon moiety into involatile components.

    摘要翻译： 使用光活性半导体通过将光活性半导体颗粒（即二氧化钛，氧化锌或硫化锌）分散到平流层中来活化颗粒，通过暴露于环境光中活化颗粒，通过化学吸收将半氟化碳积聚到半导体中，使反应的颗粒沉淀 从平流层并将氯氟烃部分水解成不挥发成分。

    Process and system for separation and recovery of perfluorocompound gases
    8.
    发明授权
    Process and system for separation and recovery of perfluorocompound gases 失效
    分离和回收全氟化合物气体的方法和系统

    公开(公告)号：US06605133B1

    公开(公告)日：2003-08-12

    申请号：US09296652

    申请日：1999-04-23

    申请人： Yao-En Li ,  Joseph E. Paganessi ,  David Vassallo ,  Gregory K. Fleming

    发明人： Yao-En Li ,  Joseph E. Paganessi ,  David Vassallo ,  Gregory K. Fleming

    IPC分类号： B01D5322

    CPC分类号： C07C17/38 ,  B01D53/22 ,  B01D53/225 ,  B01D53/226 ,  B01D53/228 ,  B01D53/229 ,  B01D2257/204 ,  B01D2257/2066 ,  Y02C20/30 ,  Y02P20/154 ,  Y02P20/155 ,  C07C19/08

    摘要： Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.

    摘要翻译： 提供了从气体混合物中回收至少一种全氟化合物气体的方法和系统。 在一个实施方案中，本发明的方法包括以下步骤：a）提供包含至少一种全氟化合物气体和至少一种载气的气体混合物，所述气体混合物处于预定压力; b）提供至少一个具有进料侧和渗透侧的玻璃状聚合物膜; c）使至少一个膜的进料侧与气体混合物接触; d）以基本上等于预定压力的压力从作为非渗透物流的膜的进料侧排出基本上包含至少一种全氟化合物气体的浓缩气体混合物; 和e）作为渗透物流从膜的渗透侧排出基本上包含至少一种载气的贫化气体混合物。

    Process and system for separation and recovery of perfluorocompound gases
    9.
    发明授权
    Process and system for separation and recovery of perfluorocompound gases 失效
    分离和回收全氟化合物气体的方法和系统

    公开(公告)号：US6444011B2

    公开(公告)日：2002-09-03

    申请号：US76826201

    申请日：2001-01-25

    申请人： AIR LIQUIDE AMERICAN

    发明人： LI YAO-EN ,  PAGANESSI JOSPEH E ,  VASSALLO DAVID ,  FLEMING GREGORY K

    IPC分类号： B01D53/68 ,  B01D53/00 ,  B01D53/02 ,  B01D53/22 ,  B01D53/32 ,  B01D63/02 ,  B01D71/48 ,  B01D71/50 ,  B01D71/56 ,  B01D71/62 ,  B01D71/64 ,  B01D71/68 ,  C07C17/38 ,  B01D3/00 ,  B01D5/00 ,  B01D53/04

    CPC分类号： B01D53/225 ,  B01D53/22 ,  B01D53/226 ,  B01D53/229 ,  B01D2257/204 ,  B01D2257/2066 ,  C07C17/38 ,  Y02C20/30 ,  Y02P20/154 ,  Y02P20/155 ,  C07C19/08

    摘要： Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least once glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.

    摘要翻译： 提供了从气体混合物中回收至少一种全氟化合物气体的方法和系统。 在一个实施方案中，本发明的方法包括以下步骤：a）提供包含至少一种全氟化合物气体和至少一种载气的气体混合物，所述气体混合物处于预定压力; b）提供至少一次具有进料侧和渗透侧的玻璃状聚合物膜; c）使至少一个膜的进料侧与气体混合物接触; d）以基本上等于预定压力的压力从作为非渗透物流的膜的进料侧排出基本上包含至少一种全氟化合物气体的浓缩气体混合物; 和e）作为渗透物流从膜的渗透侧排出基本上包含至少一种载气的贫化气体混合物。

    Process and system for separation and recovery of perfluorocompound gases
    10.
    发明授权
    Process and system for separation and recovery of perfluorocompound gases 失效
    分离和回收全氟化合物气体的方法和系统

    公开(公告)号：US06312502B1

    公开(公告)日：2001-11-06

    申请号：US09296651

    申请日：1999-04-23

    申请人： Yao-En Li ,  Jospeh E. Paganessi ,  David Vassallo ,  Gregory K. Fleming

    发明人： Yao-En Li ,  Jospeh E. Paganessi ,  David Vassallo ,  Gregory K. Fleming

    IPC分类号： B01D5322

    CPC分类号： C07C17/38 ,  B01D53/22 ,  B01D53/225 ,  B01D53/226 ,  B01D53/228 ,  B01D53/229 ,  B01D2257/204 ,  B01D2257/2066 ,  Y02C20/30 ,  Y02P20/154 ,  Y02P20/155 ,  C07C19/08

    摘要： Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.

    摘要翻译： 提供了从气体混合物中回收至少一种全氟化合物气体的方法和系统。 在一个实施方案中，本发明的方法包括以下步骤：a）提供包含至少一种全氟化合物气体和至少一种载气的气体混合物，所述气体混合物处于预定压力; b）提供至少一个具有进料侧和渗透侧的玻璃状聚合物膜; c）使至少一个膜的进料侧与气体混合物接触; d）以基本上等于预定压力的压力从作为非渗透物流的膜的进料侧排出基本上包含至少一种全氟化合物气体的浓缩气体混合物; 和e）作为渗透物流从膜的渗透侧排出基本上包含至少一种载气的贫化气体混合物。