发明名称 |
Cryogenic rectification system for producing higher purity helium |
摘要 |
The production of higher purity helium wherein a feed comprising helium, nitrogen and hydrocarbons is processed in a system comprising two columns operating at different pressure levels, with the product helium produced in the higher pressure column and nitrogen and hydrocarbons cycled to the lower pressure column.
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申请公布号 |
US5771714(A) |
申请公布日期 |
1998.06.30 |
申请号 |
US19970904591 |
申请日期 |
1997.08.01 |
申请人 |
PRAXAIR TECHNOLOGY, INC. |
发明人 |
EMLEY, RAE LYNN;MALONEY, JAMES JOSEPH |
分类号 |
F25J3/02;F25J3/08;(IPC1-7):F25J1/00 |
主分类号 |
F25J3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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