Distillation: processes – separatory – Filming of distilland for vaporization
Patent
1990-01-05
1991-11-05
Manoharan, Virginia
Distillation: processes, separatory
Filming of distilland for vaporization
159 131, 159 482, 159 49, 159DIG27, 159DIG28, 165110, 165111, 2021851, 202236, 203 90, 21032184, 21050036, 210640, B01D 122, B01D 328, B01D 6100
Patent
active
050629271
ABSTRACT:
The method of preparing and operating a heat-exchanging membrane of plastic material as the evaporating and condensing surfaces in a still includes treating the evaporating surface to be wettable by the distilland, and includes selectively washing the condensing surface which is unwettable by the by the distilland in order to promote efficient accumulation of condensed droplets and efficient heat transfer through the membrane to the evaporation surface. Washing liquids of either similar or disimilar chemical composition relative to the condensed vapor are recycled to the upper region of the condensing surface to facilitate washing of the surface by the downward movement of accumulated droplets of condensed vapor.
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Manoharan Virginia
Smith A. C.
T and G Technologies, Inc.
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