发明授权
- 专利标题： Combined cryogenic distillation and PSA for argon production
- 专利标题（中）： 氩气生产联合低温蒸馏和PSA
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申请号： US11372954申请日： 2006-03-10
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公开(公告)号： US07501009B2公开(公告)日： 2009-03-10
- 发明人: David Ross Graham , Justin David Bukowski , Jung Soo Choe , Donn Michael Herron , Sang Kook Lee
- 申请人： David Ross Graham , Justin David Bukowski , Jung Soo Choe , Donn Michael Herron , Sang Kook Lee
- 申请人地址： US PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： US PA Allentown
- 代理商 Bryan C. Hoke, Jr.
- 主分类号： F25J3/00
- IPC分类号： F25J3/00 ; B01D53/047
摘要：
A method and apparatus for producing high purity argon by combined cryogenic distillation and adsorption technologies is disclosed. Crude argon from a distillation column or a so-called argon column is passed to a system of adsorption vessels for further purification. Depressurization gas from adsorption is introduced back, in a controlled manner, to the distillation column and/or a compressor or other means for increasing pressure. Particulate filtration and getter purification may optionally be used.