Separation of reaction mixture after ethanolysis of rapeseed oil
نویسندگان
چکیده
منابع مشابه
Separation of reaction mixture after ethanolysis of rapeseed oil
Various effects on the separation of raw reaction mixture after the ethanolysis of rapeseed oil were investigated. Water addition, initial temperature of separation, centrifugation, ionic compound addition and time effects affecting concentrations of potassium, free glycerol and yield of the ester phase were found out. Centrifugation has the most positive effect. Finally, correlation between co...
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The alkaline-catalyzed (KOH) ethanolysis of rapeseed oil with the help of a mechanical disperser was researched in this study. The effects of chosen reaction conditions (independent variables: the reaction temperature and time, the amount of catalyst, the molar ratio ethanol to oil and the rotation frequency of the disperser) on the ethanolysis process and ways for the improvement of the transe...
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The distribution of ethyl esters, triglycerides, diglycerides, monoglycerides and glycerol between the ester and glycerol phase was investigated after the ethanolysis of rapeseed oil at various reaction conditions. The determination of these substances in the ester and glycerol phases was carried out by the GC method. The amount of ethyl esters in the glycerol phase was unexpectedly high and th...
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Many samples of rapeseed oil ethyl ester were prepared by alkaline-catalyzed transesterification at various conditions (reaction time, temperature, amount of catalyst, the molar ratio of ethanol to oil, the rotations of a disperser and the purification by water). The concentrations of the key impurities for biodiesel quality (the concentrations of monoglycerides, diglycerides, triglycerides, fr...
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Ethanolysis of a mixture of tuna and sardine oil catalysed by lipase Lipozyme 435 (Candida antarctica lipase B) has been studied in supercritical carbon dioxide as reaction medium. The reaction products were analysed by Normal Phase-High Performance Liquid Chromatography (NP-HPLC) and High Temperature Gas Chromatography (HTGC). The reaction has been performed in a stirred tank reactor operating...
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ژورنال
عنوان ژورنال: European Journal of Lipid Science and Technology
سال: 2009
ISSN: 1438-7697,1438-9312
DOI: 10.1002/ejlt.200800255