Process for introducing a multicomponent liquid feed stream...

Details Process for introducing a multicomponent liquid feed stream... Process for introducing a multicomponent liquid feed stream...

B - Operations, Transporting

01

D

B01D 3/14 (2006.01) F25J 3/04 (2006.01)

Patent

CA 2191186

A process is set forth for introducing a multicomponent liquid feed stream at pressure P2 into a distillation column operating at lower pressure P1. The process comprises removing a split stream from the feed stream, reducing its pressure and using the resulting stream to subcool the feed stream. After being subcooled, the feed stream is also reduced in pressure and both streams are fed to different stages of the distillation column. An important embodiment of the present invention is within the standard double column air separation cycle where the multicomponent liquid stream is the crude liquid oxygen stream from the bottom of the high pressure column which must be reduced in pressure prior to its introduction into the low pressure column.

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