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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
CPC分类号： F25J3/0252 , B01D53/00 , B01D53/02 , B01D2251/202 , B01D2257/104 , B01D2257/2064 , B01D2257/2066 , C01B23/0094 , C01B2210/0006 , C01B2210/0014 , C01B2210/0045 , C01B2210/0046 , F25J3/0257 , F25J3/0285 , F25J3/08 , F25J2200/02 , F25J2200/04 , F25J2200/30 , F25J2200/50 , F25J2200/74 , F25J2205/60 , F25J2205/82 , F25J2215/04 , F25J2215/50 , F25J2215/58 , F25J2245/58 , F25J2270/12 , F25J2270/42 , F25J2290/62 , Y02C10/08 , Y02C10/12 , Y02P20/152 , Y02P20/154 , Y10S62/924
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。
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