发明申请
- 专利标题： He-3 Recovery From Natural Helium By Distillation
- 专利标题（中）： He-3通过蒸馏从天然氦中回收
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申请号： US13403409申请日： 2012-02-23
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公开(公告)号： US20130219956A1公开(公告)日： 2013-08-29
- 发明人: Jianguo Xu , David Ross Graham , Vipul S. Parekh
- 申请人： Jianguo Xu , David Ross Graham , Vipul S. Parekh
- 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
- 主分类号： F25J3/06
- IPC分类号： F25J3/06
摘要：
A system and method for recovering helium-3 from helium. A distillation column having a top section that is smaller in diameter than a main section is provided. The column also includes an intermediate condenser located in the main section and above a helium feed stream. Reflux to the column can be provided by liquid helium-3 from a conduit or from an overhead condenser. In a preferred cycle, the distillation column is operated at a subatmospheric pressure, and in a temperature range between 2.3 K and 4.3 K.
公开/授权文献
- US08671715B2 He-3 recovery from natural helium by distillation 公开/授权日：2014-03-18
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