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1. 发明申请

WO2012138430A1 METHOD AND APPARATUS FOR CONTROLLING THE ELECTRICAL POWER APPLIED TO AN ELECTRICALLY DRIVEN OXYGEN SEPARATION DEVICE HAVING ONE OR MORE COMPOSITE MEMBRANE ELEMENTS TO SEPARATE OXYGEN FROM AN OXYGEN CONTAINING FEED 审中-公开
标题翻译：用于控制电动力的方法和装置用于具有一个或多个复合膜分离装置的电驱动氧分离装置，以从含有进料的氧气中分离出氧气
公开(公告)号：WO2012138430A1
公开(公告)日：2012-10-11
申请号：PCT/US2012/026453
申请日：2012-02-24
申请人： PRAXAIR TECHNOLOGY, INC. , COLLINS, Michael, J. , SUGGS, David, F. , SWAMI, Sadashiv, M. , KELLY, Richard, M.
发明人： COLLINS, Michael, J. , SUGGS, David, F. , SWAMI, Sadashiv, M. , KELLY, Richard, M.
IPC分类号： B01D53/22 , B01D53/32 , C01B13/02
CPC分类号： B01D53/22 , B01D53/326 , B01D2256/12 , B01D2257/102 , C01B13/0251 , Y02E60/366
摘要： A method and apparatus for controlling the electrical power applied to an electrically driven oxygen separation device (1) having one or more composite membrane elements (10) to separate oxygen from an oxygen containing feed (20). The composite membrane elements have a resistance increasing during the operation thereof that would act to reduce oxygen output if applied voltage were held constant. In order to increase the time interval for renewing the composite membrane elements, the electrical potential difference is controlled such that the electric current drawn by the elements remains at a substantially constant level by increasing the electrical potential difference as the resistance increases until a predetermined voltage level is reached. Once this level is obtained, the electrical potential difference is maintained at a constant level and the electric current being drawn and the oxygen output is allowed to decay to a predetermined low level after which the element or elements are replaced.
摘要翻译：一种用于控制施加到具有一个或多个复合膜元件（10）以从含氧进料（20）分离氧气的电驱动氧分离装置（1）的电力的方法和装置。复合膜元件在其操作期间具有电阻增加，如果施加的电压保持恒定，其将用于减少氧输出。为了增加更新复合膜元件的时间间隔，控制电位差，使得由元件汲取的电流通过随着电阻增加直到预定的电压电平来增加电位差而保持在基本上恒定的水平到达了。一旦获得该电平，电位差就保持在一个恒定的水平，并且被抽出的电流和氧气输出被允许衰减到一个预定的低电平，之后元件被替换。

2. 发明申请

WO2014046724A1 HIGH PURITY CERAMIC OXYGEN GENERATOR 审中-公开
标题翻译：高纯度陶瓷氧气发生器
公开(公告)号：WO2014046724A1
公开(公告)日：2014-03-27
申请号：PCT/US2013/028604
申请日：2013-03-01
申请人： PRAXAIR TECHNOLOGY, INC.
发明人： JANKOWIAK, Jerome, T. , SUGGS, David, F. , SWAMI, Sadashiv, M. , KESER, Lane, A. , SELOVER, Arthur, C.
IPC分类号： B01D53/22 , B01D53/32 , B01D63/06 , C01B13/02
CPC分类号： C25B15/02 , B01D53/22 , B01D53/326 , B01D2256/12 , C01B13/0255 , C25B1/02 , C25B9/08
摘要： A high purity ceramic oxygen generator incorporating a module utilizing a plurality of tubular ceramic membrane elements and configured to operate in: (i) a pressurizing mode to separate oxygen from an oxygen containing feed stream when an electric potential difference is applied to induce oxygen ion transport in an electrolyte thereof; and (ii) an idle mode when the electric potential difference is removed. The ceramic oxygen generator further includes one or more manifolds as well as one or more automatic purge valves located upstream of the oxygen receiving tank. The purge valve is opened for a pre-set duration upon initiation of the pressurization mode to purge any nitrogen or other contaminating gas that diffuses into the ceramic oxygen generator during idle mode thereby ensuring the desired purity level of oxygen is received by the oxygen receiving tank.
摘要翻译：一种高纯度陶瓷氧气发生器，其包括利用多个管状陶瓷膜元件的模块，并且被配置为在施加电位差以诱导氧离子转运时加压模式以将氧气与含氧进料流分离在其电解质中; 和（ii）当去除电位差时的空闲模式。陶瓷氧发生器还包括一个或多个歧管以及位于氧气接收罐上游的一个或多个自动清洗阀。在加压模式开始时，净化阀打开预设的持续时间，以清除在空闲模式期间扩散到陶瓷氧气发生器中的任何氮气或其他污染气体，从而确保氧气接收罐接收到所需的氧气纯度水平。

3. 发明申请

WO2017146800A2 METHOD OF THERMALLY-STABILIZING AND OXYGEN TRANSPORT MEMBRANE-BASED REFORMING SYSTEM 审中-公开
标题翻译：热稳定和氧气输送膜基重整系统的方法
公开(公告)号：WO2017146800A2
公开(公告)日：2017-08-31
申请号：PCT/US2016/065698
申请日：2016-12-09
申请人： PRAXAIR TECHNOLOGY, INC.
发明人： KELLY, Sean, M. , SWAMI, Sadashiv, M. , PECK, John, D.
IPC分类号： C01B3/38
CPC分类号： C01B3/382 , C01B13/0251 , C01B2203/0233 , C01B2203/0244 , C01B2203/0844 , C01B2203/142
摘要： A method of operating an oxygen transport membrane based reforming system employing one or more packs of thermally coupled panels of reformer tubes and oxygen transport membrane ("OTM") reactors close to thermo-neutral point is provided. The method produces syngas by converting a hydrocarbon-containing feed, such as natural gas in the reformer tubes of a pack by endothermic steam reforming reactions. The heat required for endothermic reforming reactions is provided by exothermic oxidizing reactions occurring inside the OTM reactors of the pack. At a thermo-neutral point the heat released by exothermic reactions matches the heat required to support endothermic reactions and heat losses in the pack. The method modulates the flow rate of hydrocarbon-containing feed and/or steam-to- carbon ratio of the combined feed to the pack to maintain the surface temperature of oxygen transport membrane reactors below a target maximum temperature. The syngas product oxygen-to-carbon ratio is maintained within a desired target range such that the OTM based reforming system is operated close to thermo-neutral point.
摘要翻译：提供了一种操作基于氧传输膜的重整系统的方法，该重整系统使用一个或多个重整器管的热耦合面板和接近热中性点的氧气传输膜（“OTM”）反应器。该方法通过吸热蒸汽重整反应转化包装的重整器管中的含碳氢化合物的进料如天然气来生产合成气。吸热重整反应所需的热量由包装的OTM反应器内发生的放热氧化反应提供。在热中性点，由放热反应释放的热量与支持吸热反应所需的热量和包装内的热量损失相匹配。该方法调节组合进料到组件的含烃进料流速和/或蒸汽碳比，以将氧传输膜反应器的表面温度保持在目标最高温度以下。合成气产物氧碳比保持在期望的目标范围内，使得基于OTM的重整系统运行在接近热中性点的位置。

4. 发明申请

WO2017146800A3 METHOD OF THERMALLY-STABILIZING AND OXYGEN TRANSPORT MEMBRANE-BASED REFORMING SYSTEM 审中-公开
公开(公告)号：WO2017146800A3
公开(公告)日：2017-08-31
申请号：PCT/US2016/065698
申请日：2016-12-09
申请人： PRAXAIR TECHNOLOGY, INC.
发明人： KELLY, Sean, M. , SWAMI, Sadashiv, M. , PECK, John, D.
IPC分类号： C01B3/38 , C01B13/02
摘要： A method of operating an oxygen transport membrane based reforming system employing one or more packs of thermally coupled panels of reformer tubes and oxygen transport membrane ("OTM") reactors close to thermo-neutral point is provided. The method produces syngas by converting a hydrocarbon-containing feed, such as natural gas in the reformer tubes of a pack by endothermic steam reforming reactions. The heat required for endothermic reforming reactions is provided by exothermic oxidizing reactions occurring inside the OTM reactors of the pack. At a thermo-neutral point the heat released by exothermic reactions matches the heat required to support endothermic reactions and heat losses in the pack. The method modulates the flow rate of hydrocarbon-containing feed and/or steam-to- carbon ratio of the combined feed to the pack to maintain the surface temperature of oxygen transport membrane reactors below a target maximum temperature. The syngas product oxygen-to-carbon ratio is maintained within a desired target range such that the OTM based reforming system is operated close to thermo-neutral point.

5. 发明申请

WO2021146024A1 OXYGEN TRANSPORT MEMBRANE REACTORS FOR DECARBONIZATION 审中-公开
公开(公告)号：WO2021146024A1
公开(公告)日：2021-07-22
申请号：PCT/US2020/065834
申请日：2020-12-18
申请人： PRAXAIR TECHNOLOGY, INC.
发明人： KELLY, Sean, M. , SWAMI, Sadashiv, M. , SHELAT, Maulik, R. , STUCKERT, Ines, C. , BROWN, Steven, M. , CHAKRAVARTI, Shrikar , LI, Juan , VORE, Digna
IPC分类号： C01B3/38 , C01B3/48 , C01B13/02 , C01B13/0251 , C01B2203/0233 , C01B2203/043 , C01B2203/044 , C01B2203/86 , C01B3/384
摘要： A method and system for decarbonization of a hydrocarbon conversion process such as steam methane reforming process for hydrogen production utilizing oxygen transport membrane reactors. The system employs catalyst-containing reforming reactors for converting natural gas into synthesis gas which is further treated in high temperature or medium temperature water gas shift reactors and fed to a hydrogen PSA to produce hydrogen product. The system further employs oxygen transport membrane reactors thermally coupled to reforming reactors and configured to oxy-combust about 90% to about 95% of combustibles in PSA tail gas that may be optionally mixed with natural gas. The oxy-combustion product stream leaving the oxygen transport membrane reactors contains about 90% of the carbon provided to the feed of the reforming reactor. The carbon dioxide in the oxy-combustion product stream can be recovered and further purified for utilization or geologic storage or liquefied to form a liquid carbon dioxide product.

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