发明名称 |
SYSTEM TO INCREASE CAPACITY OF LNG-BASED LIQUEFIER IN AIR SEPARATION PROCESS. |
摘要 |
A system is set forth to increase the capacity of an LNG-based liquefier in a cryogenic air separation unit wherein, in a low production mode, the nitrogen that is fed to the LNG-based liquefier consists only of at least a portion of the high pressure nitrogen from the distillation column system while in a high production mode, a supplemental compressor is used to boost the pressure of at least a portion of the low pressure nitrogen from the distillation column system to create additional (or replacement) feed to the LNG-based liquefier. A key to the present invention is the supplemental compressor and the associated heat exchange equipment is separate and distinct from the LNG-based liquefier. This allows its purchase to be delayed until a capacity increase is actually needed and thus avoid building an oversized liquefier based on a speculative increase in liquid product demand.
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申请公布号 |
MX2007007878(A) |
申请公布日期 |
2008.12.16 |
申请号 |
MX20070007878 |
申请日期 |
2007.06.26 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
JUNG SOO CHOE;DOUGLAS PAUL DEE;DONN MICHAEL HERRON |
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