Purification Of Glycerol Research Articles

Glycerol production: A pilot‐plant investigation for continuous fermentation and recovery

AbstractA pilot plant was built to evaluate the economic potentialities of producing glycerol from sugar by the bisulphite fermentation process. The design of this small unit was based on information collected from bench‐scale studies of the fermentation and recovery processes taking advantage of new separation techniques.A beer containing 5 per cent of glycerol is produced in a continuous fermentation in which the free bisulphite level is automatically controlled. The effluent from the fermentor is centrifuged, and the yeast is returned to the fermentation. The dilute clarified beer is acidified; sulphur dioxide, acetaldehyde, and alcohol are removed; and the stripped solution is neutralized and concentrated until it contains 45 per cent of glycerol. This concentrated glycerol stock is purified by using a combination of ion‐exclusion and ion‐exchange.Good fermentation control results in a beer that has a low solids–to–glycerol ratio, low organic acid content, and low residual sugar. The method of glycerol purification results in a high glycerol recovery, since no distillation of glycerol is involved. The sulphur dioxide removed from the beer is recycled through the fermentation so that the chief raw materials used in the process are sugar, sulphuric acid, and sodium carbonate. The yields of products based on sugar charged are: glycerol, 25 per cent; alcohol, 17 per cent; and acetaldehyde, 11 per cent.The economic success of the process depends to a large extent upon the price of sugar. Under present conditions it is felt that the process is competitive.

Recovery and purification of glycerol

Journal of the American Oil Chemists' SocietyVolume 33, Issue 11 p. 556-565 Lectures Of The 1956 Short Course On Unit Processes In The Fatty Oil, Soap, And Detergent Industries Part II Recovery and purification of glycerol N. W. Ziels, N. W. Ziels Lever Brothers Company, Hammond, IndianaSearch for more papers by this author N. W. Ziels, N. W. Ziels Lever Brothers Company, Hammond, IndianaSearch for more papers by this author First published: 01 November 1956 https://doi.org/10.1007/BF02638489Citations: 10AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume33, Issue11November 1956Pages 556-565 RelatedInformation

Glycerol Purification by Ion Exclusion.

Glycerol Purification by Ion Exclusion.

Purification of Glycerol by Crystallization

Purification of Glycerol by Crystallization