Efficiency of cross-current trays
Distillation. Absorption - Tray columns: sizing
Article REF: J2623 V1
Efficiency of cross-current trays
Distillation. Absorption - Tray columns: sizing

Author : Jean‐Charles CICILE

Publication date: December 10, 1994 | Lire en français

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3. Efficiency of cross-current trays

3.1 Efficiency definitions

Trays are designed to transfer matter and heat between a liquid and a gas phase. A theoretical tray is one whose outlet streams are made up of a liquid phase and a gaseous phase in equilibrium with each other.

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3.1.1 Overall efficiency

The overall efficiency η 0 of a column is the ratio of the number of theoretical trays (NPT ) required to achieve the separation obtained to the number of trays actually existing in the column...

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