Reactions of tertiary butyl hypochlorite with vegetable oils and their derivatives. III. Chlorination of soybean oil in the pilot plant

Relationship between polymerised triacylglycerols formation and tocopherols degradation was studied during heating of four commercially accessible vegetable oils (rapeseed oil, classical sunflower oil, soybean oil and olive oil) on the heating plate with temperature 180°C. The content of polymerised triacylglycerols 6% (i.e. half of maximum acceptable content) was achieved after 5.3, 4.2, 4.1, and 2.6 hours of heating for olive oil, soybean oil, rapeseed oil and sunflower oil, respectively, while decrease in content of total tocopherols to 50% of the original content was achieved after 3.4, 1.6, 1.3, and 0.5 hours of heating for soybean oil, rapeseed oil, sunflower oil and olive oil, respectively. Because of the high degradation rate of tocopherols, decrease in content of total tocopherols to 50% of the original content was achieved at content of polymerised triacylglycerols 0.6%, 1.9%, 2.8% and 4.9% for olive oil, rapeseed oil, sunflower oil and soybean oil, respectively, i.e. markedly previous to the frying oil should be replaced.

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The optimisation of soybean oil degumming on a pilot plant scale using a ceramic membrane

Journal of Food Engineering ◽

10.1016/j.jfoodeng.2008.01.003 ◽

2008 ◽

Vol 87 (4) ◽

pp. 514-521 ◽

Cited By ~ 39

Author(s):

Ana Paula Badan Ribeiro ◽

Ning Bei ◽

Lireny A. Guaraldo Gonçalves ◽

José Carlos Cunha Petrus ◽

Luiz Antonio Viotto

Keyword(s):

Soybean Oil ◽

Pilot Plant ◽

Ceramic Membrane ◽

Pilot Plant Scale

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Optimization of Base Catalyzed Ethanolysis of Vegetable Oils in Microreactors Using Design of Experiments

Applied Sciences ◽

10.3390/app10051624 ◽

2020 ◽

Vol 10 (5) ◽

pp. 1624

Author(s):

Ekaterina Borovinskaya ◽

Eva Ritter ◽

Wladimir Reschetilowski

Keyword(s):

Design Of Experiments ◽

Soybean Oil ◽

Vegetable Oils ◽

Flow Rate ◽

Positive Impact ◽

Batch Reactor ◽

Waste Cooking Oil ◽

Reaction Systems ◽

Cooking Oil ◽

Continuous Reaction

The base-catalyzed ethanolysis of soybean oil and waste cooking oil (WCO) was investigated in two types of continuous reactors (microreactor and T-mixer) and in a batch reactor. Flow rate, ethanol/oil ratio and concentration of catalyst were varied according to the design of experiments in continuous reaction systems. Regression analysis was carried out concerning the obtained product yields. Based on this analysis optimal conditions in different reactors types with soybean oil, fresh and WCO were determined. While the increased flow rate was unfavorable in the MX-mixer, it contributed to a great positive impact in the T-mixer system at flow rates higher than 2.2 mL/min. The soybean oil provides a slightly lower yield maximum (96.7%) than the fresh cooking oil (97.9%) and the waste cooking oil (97.5%). Therefore, the mix of vegetable oils in the cooking oil is more suitable for ethanolysis reaction than the soybean oil.

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