NDLI: Comparison of steam and nitrogen in the physical deacidification of soybean oil

Content Provider	Springer Nature Link
Author	Decap, Philippe Braipson Danthine, Sabine Vanbrabant, Béatrice Greyt, Wim Deroanne, Claude
Copyright Year	2004
Abstract	Deacidification in physical refining is one of the most sensitive steps in refining edible vegetable oils because of its large impact on the quality of the oil. The removal of volatile compounds such as FFA is accomplished at elevated temperatures and a high vacuum with a stripping gas, usually steam. The aim of this work was to verify, at the laboratory level, the advantages of using an alternative stripping gas, nitrogen, instead of steam. An ideal vapor-liquid equilibrium model (IVLE) was used to compare the stripping capacities of steam and nitrogen and to analyze the effects of various operational parameters (temperature, pressure, amount of stripping gas) on the residual acidity of the oil. There was no clear evidence that nitrogen showed a higher capacity to strip FFA than steam. The IVLE model seemed suitable to describe FFA laboratory distillation by using steam or nitrogen, provided the final residual content of FFA was not too low.
Starting Page	611
Ending Page	617
Page Count	7
File Format	PDF
ISSN	0003021X
Journal	Journal of the American Oil Chemists' Society
Volume Number	81
Issue Number	6
e-ISSN	15589331
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Deacidification deodorization nitrogen physical refining steam vegetable oil Industrial Chemistry/Chemical Engineering Analytical Chemistry Chemistry/Food Science Biotechnology Biomaterials Agriculture
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Chemical Engineering

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