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Optimum blowing steam rate in deodorization and steam distillation
Author(s) -
Chirgwin L. D.
Publication year - 1953
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02640967
Subject(s) - sparging , batch distillation , steam distillation , distillation , entrainment (biomusicology) , superheated steam , chemistry , thermodynamics , process engineering , fractional distillation , boiler (water heating) , chromatography , engineering , physics , rhythm , acoustics
Summary On the basis of Bailey's equation for deodorization it is proposed that there is an optimum sparging rate, characteristic of each individual system, for steam distillation and its specialized forms, such as deodorization and stripping. It is suggested that the principles involved are applicable to continuous or batch systems of any size. A simple method of determining this optimum rate is described and illustrated with data from a commercial batch deodorizer. It is proposed that, under optimum conditions: the ratio of absolute pressure (P) to the blowing steam rate (R) is at a minimum; total distillation is at a maximum; the linear velocity of the vapor is at a maximum; and entrainment is disproportionately high.It is recognized that this technically optimum blowing steam rate may not coincide with the most economical conditions of operation, depending on the characteristics of the system. It is concluded that operation at rates appreciably above the optimum can in no way be justified.