Method of purifying and recycling argon
    1.
    发明授权
    Method of purifying and recycling argon 有权
    氩气净化和回收方法

    公开(公告)号:US06685903B2

    公开(公告)日:2004-02-03

    申请号:US09725778

    申请日:2001-03-01

    IPC分类号: C01B2300

    摘要: This invention is directed to a method for purifying argon from an impure argon stream. If the oxygen concentration in the impure argon is less than about 10 mole percent of oxygen, the invention is proceeded in the sequential steps of a) removing chlorine from the impure argon stream; b) adding hydrogen to the impure argon stream; c) removing carbon dioxide and water from the impure argon stream; d) removing hydrogen from the impure argon stream; and e) removing nitrogen from the impure argon stream to form a purified argon stream. If the oxygen concentration in the impure argon is greater than about 10 mole percent of oxygen, the method comprises the sequential steps of a) removing chlorine from the impure argon stream; b) removing carbon dioxide and water from the impure argon stream; c) removing nitrogen and oxygen from the impure argon stream; d) adding hydrogen to the impure argon stream; e) removing water from the impure argon stream; f) removing hydrogen from the impure argon stream; and g) removing nitrogen from the impure argon stream to form a purified stream.

    摘要翻译: 本发明涉及一种从不纯的氩气流中纯化氩气的方法。 如果不纯的氩气中的氧气浓度小于约10摩尔%的氧气,则本发明按照以下顺序进行:a)从不纯的氩气流中除去氯气; b)向不纯的氩气流中加入氢气; c)从不纯的氩气流中除去二氧化碳和水; d)从不纯的氩气流中除去氢; 和e)从不纯的氩气流中除去氮气以形成纯化的氩气流。 如果不纯的氩气中的氧气浓度大于约10摩尔%的氧气,则该方法包括以下顺序步骤:a)从不纯的氩气流中除去氯气; b)从不纯的氩气流中除去二氧化碳和水; c)从不纯的氩气流中除去氮气和氧气; d)向不纯的氩气流中加入氢气; e)从不纯的氩气流中除去水; f)从不纯的氩气流中除去氢; 和g)从不纯的氩气流中除去氮气以形成纯化的物流。

    Electrochemical carbon monoxide production
    4.
    发明授权
    Electrochemical carbon monoxide production 有权
    电化学一氧化碳生产

    公开(公告)号:US08591718B2

    公开(公告)日:2013-11-26

    申请号:US12961987

    申请日:2010-12-07

    摘要: A method and apparatus for producing a carbon monoxide containing product in which cathode and anode sides of an electrically driven oxygen separation device are contacted with carbon dioxide and a reducing agent, respectively. The carbon dioxide is reduced to carbon monoxide through ionization of oxygen and the reducing agent lowers the partial pressure of oxygen at the anode side to partially drive oxygen ion transport within the device through the consumption of the oxygen and to supply heat. The lowering of oxygen partial pressure reduces voltage and therefore, electrical power required to be applied to the device and the heat is supplied to heat the device to an operational temperature and to the reduction of the carbon dioxide occurring at the cathode side. The device can be used as part of an integrated apparatus in which the carbon dioxide is supplied from a waste stream of a process plant.

    摘要翻译: 一种含有一氧化碳的产品的制造方法和装置,其中电驱动氧分离装置的阴极和阳极侧分别与二氧化碳和还原剂接触。 通过氧离子将二氧化碳还原成一氧化碳,并且还原剂降低阳极侧的氧分压,以通过消耗氧气部分地驱动装置内的氧离子转运并供应热量。 氧分压的降低降低了电压,因此,需要施加到装置上的电力和热被供给以将装置加热到工作温度并减少在阴极侧发生的二氧化碳。 该装置可以用作集成装置的一部分,其中二氧化碳从处理厂的废物流供应。