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563. The steam stripping of taints from liquids. II. Counterflow stripping with particular reference to possible use of Vacreator equipment

Published online by Cambridge University Press:  01 June 2009

J. K. Scott
J. K. Scott
Affiliation:
The Dairy Research Institute, New Zealand
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Extract

The considerable increase in efficiency of taint removal which can be attained by counterflow methods is shown by the extension of the algebraic and graphical methods of Part I and confirmed by experiments with the reference substances diacetyl and acetoin in water. The treatment is mainly confined to multiple contact counterflow, and several methods are suggested by which existing Vacreator equipment may be used for counterflow connexion. The effect of a feed temperature below the temperature existing in the contacting vessels is shown to increase the amount of taint removal per pound of stripping steam used. Comparative curves are given for total steam consumption for systems preheating to various temperatures with waste heat.

Results are given for experiments with a converted small size Tandem Vacreator. For diacetyl, the stripping steam used was one-tenth of that for a single contact process over the same range of diacetyl removal. Acetoin, being less volatile than diacetyl, did not show the same large steam saving.

Type
Original Articles
Information
Journal of Dairy Research , Volume 21 , Issue 3 , October 1954 , pp. 370 - 382
Copyright
Copyright © Proprietors of Journal of Dairy Research 1954

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References

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