HYDROGEN PRODUCTION PROCESS WITH CARBON DIOXIDE RECOVERY
    4.
    发明申请
    HYDROGEN PRODUCTION PROCESS WITH CARBON DIOXIDE RECOVERY 审中-公开
    二氧化碳回收氢生产工艺

    公开(公告)号:US20140332405A1

    公开(公告)日:2014-11-13

    申请号:US13889730

    申请日:2013-05-08

    IPC分类号: C01B3/50 C25B1/02

    摘要: A method for producing hydrogen by performing the steps of feeding a synthesis gas mixture to a pressure swing adsorption unit; producing hydrogen from the synthesis gas mixture in the pressure swing adsorption unit; feeding the remainder of the synthesis gas mixture at low pressure to an electrochemical cell wherein hydrogen is separated from the remainder of the synthesis gas mixture and is simultaneously pressurized; feeding the pressurized hydrogen from the electrochemical cell to join with the hydrogen generated in the pressure swing adsorption unit and recovering the combined hydrogen product. The synthesis gas mixture may be from a reformation unit and it may be subject to a water gas shift reaction. In addition to the production of hydrogen, the separation of hydrogen in the electrochemical cell increases the concentration of carbon dioxide in the residual waste gas and enables carbon dioxide recovery.

    摘要翻译: 一种通过以下步骤制造氢的方法:将合成气混合物供给到变压吸附单元; 在变压吸附单元中从合成气体混合物产生氢气; 将其余的合成气混合物在低压下供给到电化学电池,其中氢与合成气混合物的其余部分分离并同时加压; 将来自电化学电池的加压氢供给到在变压吸附单元中产生的氢气并回收组合的氢气产物。 合成气混合物可以来自重整单元,并且它可能经历水煤气变换反应。 除了生产氢气之外,电化学电池中的氢气分离会增加残余废气中的二氧化碳浓度,并能使二氧化碳回收。

    Carbon dioxide production for enhanced oil recovery
    5.
    发明授权
    Carbon dioxide production for enhanced oil recovery 失效
    二氧化碳生产用于提高采收率

    公开(公告)号:US08128736B2

    公开(公告)日:2012-03-06

    申请号:US12539117

    申请日:2009-08-11

    IPC分类号: B01D53/04 B01J20/06

    CPC分类号: C09K8/58 Y02C10/08

    摘要: A method for producing carbon dioxide by the steps of feeding a CO2-rich feed stream containing fuel gas to an oxygenated oxygen-selective ceramic bed to produce a product stream of carbon dioxide, water, and residual oxygen; adding oxygen to this product stream and feeding to an oxygen-depleted oxygen-selective ceramic bed and recovering carbon dioxide substantially free of oxygen and fuel gas. In an additional embodiment, nitrogen oxides are also removed from the fuel gas.

    摘要翻译: 通过以下步骤生产二氧化碳的方法:将含有燃料气体的富CO 2进料流供给到氧化氧选择性陶瓷床中以产生二氧化碳,水和残留氧的产物流; 向该产物流中加入氧气并进料至贫氧氧选择性陶瓷床并回收基本上不含氧气和燃料气体的二氧化碳。 在另外的实施方案中,氮氧化物也从燃料气体中除去。

    Process for the recovery of perfluorinated compounds
    7.
    发明授权
    Process for the recovery of perfluorinated compounds 失效
    回收全氟化合物的方法

    公开(公告)号:US5626033A

    公开(公告)日:1997-05-06

    申请号:US678921

    申请日:1996-07-12

    IPC分类号: B01D53/04 B01D53/047 F25J3/00

    摘要: A process for recovering a given component from a first gas stream in which the given component is intermittently present by PSA or TSA using an adsorbent which more strongly adsorbs the given component by introducing into the first gas stream, prior to PSA or TSA treatment, a second gas stream that is enriched in the given component. The second gas stream may be introduced into the first gas stream only during periods when the concentration of given component in the first gas stream is below its maximum concentration or it may be continuously introduced into the first gas stream at a level which is greater than the maximum concentration of given component originally present in the first gas stream.

    摘要翻译: 一种从第一气流中回收给定组分的方法,其中给定组分通过PSA或TSA间歇地存在,使用吸附剂,其通过在PSA或TSA处理之前引入第一气流中更强烈地吸附给定组分, 在给定组分中富集的第二气流。 第二气流可以仅在第一气流中的给定组分的浓度低于其最大浓度的时段内引入第一气流中,或者可以以大于第一气流的水平连续引入第一气流 最初存在于第一气流中的给定组分的最大浓度。

    HYDROGEN PRODUCTION PROCESS
    10.
    发明申请
    HYDROGEN PRODUCTION PROCESS 审中-公开
    氢生产过程

    公开(公告)号:US20140311917A1

    公开(公告)日:2014-10-23

    申请号:US13866173

    申请日:2013-04-19

    IPC分类号: C01B3/26 C25B1/02

    摘要: A method is disclosed for producing high purity, high pressure hydrogen from a low pressure synthesis gas production process. The low pressure synthesis gas is produced from steam or carbon dioxide reforming of hydrocarbons, autothermal reforming of hydrocarbons or partial oxidation of hydrocarbons. The resulting low pressure synthesis gas mixture is fed to an electro-chemical cell wherein hydrogen is separated from the low pressure synthesis gas mixture and subjected to compression and high pressure; high purity hydrogen is recovered from the electro-chemical cell.

    摘要翻译: 公开了一种从低压合成气生产过程生产高纯度,高压氢的方法。 低压合成气由碳氢化合物的蒸汽或二氧化碳重整,烃的自热重整或烃的部分氧化产生。 将所得的低压合成气混合物供给到电化学池,其中将氢从低压合成气混合物中分离出来并进行压缩和高压; 从电化学电池回收高纯度氢。