Degumming soybean oil

Haas et al. [18] developed a computer model to estimate the capital and operating costs of a moderately sized industrial biodiesel production facility with a capacity of 33.5 ktonne (10 million gallons) using degummed soybean oil as... 

Watanabe, Y., Pinsirodom, P., Nagao, T., Yamauchi, A., Kobayashi, T., Nishida, Y., Takagi, Y., and Shimada, Y. 2002. Conversion of degummed soybean oil to biodiesel fuel with immobilized Candida antarctica lipase. J. Mol. Catal. B Enzym., 17, 151-155. 

Figure 3. Flowsheet for degumming soybean oil and crude lecithin production (111).

Acidulated soybean soapstock Calchem IVO-114 Caswell No. 801B Crude soybean oil, solvent extracted Degummed soybean oil EINECS 232-274-4 EPA Pesticide Chemical Code 031606 Extract of soy Lipex 107 Lipex 200 Oils, soybean Refined soybean oil Refined undeodorized soybean oil Soja bean oil Soy germ extract Soy oil Soya-bean oil Soya bean oil [Oil, edible] Soya oil Soybean acidulated soapstock Soybean deodorizer distillate Soybean oil ... 

Quality Trait Prime Crude Soybean Oil Crude Degummed Soybean Oil AOCS Method... 

The bleaching process is relatively straightforward—refined and/or degummed soybean oil is mixed with the appropriate dosage of earth, heated to a bleaching temperature, and then filtered. The three most common types of contact bleaching methods are batch atmospheric, batch vacuum, and continuous vacuum. This sequence is also the chronological order in which the methods were developed ... 

Sergi Gomes MC, Arroyo PA, and Curvelo PereiraN. Biodiesel production from degummed soybean oil and glycerol removal using ceramic membrane. J. Membr. Sci. 2011 378 453-461. 

FIGURE 23.15 SEM of an NF/UF mixed polymeric (PA/PS) membrane (MWCO 1000 Da), (a) Intact membrane (without treatment), (b) Membrane after the permeation of a 20% (w/w) micelle of degummed soybean oil in hexane. Magnification 15,000x. Source Author s personal collection. 

Soybean phospholipids (Chapman, 1980) contain phosphatidic add (5%), phosphatidylinositol (20%), phosphatidylethanolamine (23%), phosphatidylcholine (39%) and unidentified components (13%). The phosphatides in crude and degummed soybean oil are given in Table 3.114 (Racicot and Handel, 1983). 

A commercial plant for these processes follows the general scheme of Fig. 11.23 (95). For 200,000 lb./day of degummed soybean oil and a solvent ratio of 8.3 1, two extraction columns each 5.5 ft. in diameter, 87 ft. tall (75 ft. of packing), operate in parallel for the furfural extraction at 120°F. The interface is held between the oil and solvent inlets, so that both phases are dispersed in one section of the tower or the other. The naphtha extraction is carried out in a single packed tower 4.5 ft. in diameter, containing a 50-ft. depth of Raschig rings, at 70 F. Furfural and... 

Fia. 11.23. Typical fractionation of degummed soybean oil (68). Chemical Society.)... 

Alkali refining. The degummed soybean oil is next alkali-refined (treated with caustic soda, soda eish, or a combination of the two) to neutralize the free fatty acids. The neutralized free fatty acids, known as soap stock, may be removed from the oil and sold to soap manufacturers, fatty acid industries, or feed manufacturers in either (a) the alkaline form, or (b) the acidulated form after treatment with acid. 

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