发明申请
- 专利标题: SYSTEM AND METHOD FOR RECOVERY OF NEON AND HELIUM FROM AN AIR SEPARATION UNIT
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申请号: US15695320申请日: 2017-09-05
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公开(公告)号: US20190072325A1公开(公告)日: 2019-03-07
- 发明人: Maulik R. Shelat , Hanfei Tuo , Nick J. Degenstein , James R. Dray
- 申请人: Maulik R. Shelat , Hanfei Tuo , Nick J. Degenstein , James R. Dray
- 主分类号: F25J3/04
- IPC分类号: F25J3/04 ; F25J5/00
摘要:
A system and method for neon recovery in a double column or triple column air separation unit is provided. The neon recovery system comprises a non-condensable stripping column configured to produce a liquid nitrogen-rich liquid column bottoms and a non-condensable gas containing overhead and one or more condensing units arranged to produce a crude neon vapor stream that contains greater than about 50% mole fraction of neon with the overall neon recovery exceeding 95%. In addition, there is minimal liquid nitrogen consumption and since much of the liquid nitrogen is recycled back to the lower pressure column of the air separation unit, there is minimal impact on the recovery of other products from the air separation unit.
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