发明授权
- 专利标题: System to cold compress an air stream using natural gas refrigeration
- 专利标题(中): 使用天然气制冷冷空气系统
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申请号: US11875052申请日: 2007-10-19
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公开(公告)号: US08601833B2公开(公告)日: 2013-12-10
- 发明人: Douglas Paul Dee , Donn Michael Herron , Jung Soo Choe
- 申请人: Douglas Paul Dee , Donn Michael Herron , Jung Soo Choe
- 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 Eric J. Schaal
- 主分类号: F25J1/00
- IPC分类号: F25J1/00 ; F25J3/00
摘要:
An air stream is compressed in multiple stages using refrigeration derived from a refrigerant comprising natural gas for inter-stage cooling. The possibility of natural gas leaking into the air stream is reduced by use of an intermediate cooling medium (“ICM”) to transfer the refrigeration from the refrigerant to the inter-stage air stream. The compressed air stream can be fed to a cryogenic air separation unit that includes an LNG-based liquefier unit from which a cold natural gas stream is withdrawn for use as said refrigerant.