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Pierre COPIGNEAUX: Arts et Manufactures engineer - Consulting engineer for the French Butane and Propane Committee
INTRODUCTION
In a tray column, material transfer is achieved by bubbling steam through the liquid in each tray to form a true emulsion. In packed columns, transfer takes place at the surface of the liquid without any appreciable occlusion of gas bubbles. The efficiency of such a device is therefore directly linked to the surface area offered by the liquid film.
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