Distillation schemes for multicomponent separations

Details Distillation schemes for multicomponent separations Distillation schemes for multicomponent separations

B - Operations, Transporting

01

D

202/87

B01D 3/14 (2006.01) F25J 3/02 (2006.01) F25J 3/04 (2006.01)

Patent

CA 2268206

The present invention teaches an efficient and easier to operate distillation embodiment to separate mixtures containing three or more components into streams enriched in one of the components. In this invention, from one end of an earlier distillation column, a liquid or a vapor stream containing two or more components is sent to a subsequent column, then a return vapor or a liquid stream is implemented between the same locations of the two columns. This establishes a two-way communication between one end of the earlier distillation column and the subsequent distillation column. From the other end of the earlier distillation column, a vapor or a liquid stream is eventually fed to another location of the subsequent distillation column; no return stream is implemented between the same locations of the two columns. This establishes the one-way communication between the other end of the earlier distillation column and the subsequent distillation column. The superior performance of the invention resides in the fact that the earlier distillation column has a two-way communication from one end and a one-way communication from the other end with the subsequent distillation column.

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