NDLI: Counter-Current Carbon Dioxide Purification of Partially Deacylated Sunflower Oil

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Counter-Current Carbon Dioxide Purification of Partially Deacylated Sunflower Oil

Content Provider	Semantic Scholar
Author	Eller, Fred J. Taylor, Scott L. Laszlo, J. A. Compton, David L. Teel, Jeffrey A.
Copyright Year	2009
Abstract	A liquid carbon dioxide counter-current fractionation method was developed to remove by-product fatty acid propyl esters (FAPEs) from the reaction mixture after the partial deacylation of sunflower oil. The fractionation column was 1.2 m long and separations were done at 25 C and 8.27 MPa. Several solvent to feed ratios (S:FR) (i.e., 7.6, 15.2, 30.3 and 60.6 g/g) and feed rates (FR) (i.e., 1, 2, 2.5, 3 and 4 mL/min) at a constant S:FR of 15.2 were examined. Raffinate purity (i.e., percentage glycerides) and extract purity (i.e., percentage FAPEs) were both monitored. Percentage glycerides in both the raffinate and the extract increased with S:FR. The raffinate contained ca. 83, 97, 100 and 100% glycerides at S:FRs of 7.6, 15.2, 30.3 and 60.6, respectively. The percentage glycerides in the extracts were ca. 3, 4, 8 and 17%, respectively. With the S:FR held constant at 15.2, the raffinate purity peaked at ca. 99% glycerides at a FR of 2.5 mL/min and the extract at this FR contained ca. 96% FAPEs. The optimal S:FR and FR determined from the experimental assays was applied to large batches in both a semi-continuous feed mode, and later in a continuous feed mode, which gave raffinates of 99.3 and 98.1% glycerides, respectively, and extracts of 97.3 and 97.2% FAPEs, respectively.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://naldc.nal.usda.gov/naldc/download.xhtml?content=PDF&id=32947
Language	English
Access Restriction	Open
Subject Keyword	3-Mercaptopropionic Acid Carbon Dioxide Circa Contain (action) Esters Fatty Acids Glycerides Gram per Gram Maxima and minima Multistage interconnection networks Ninety Nine Purification of quantum state Purity Semi-continuity Semiconductor industry Thioctic Acid Web feed sunflower seed oil
Content Type	Text
Resource Type	Article

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