The ultrasonic extraction conditions and biodiesel preparation of Cinnamomum burmannii seed oil have been researched.The results showed that the optimal conditions of oil ultrasonic extraction were as follows:petroleum ether as extraction solvent,seed and petroleum ether volume mass ratio of 1 ∶ 20,ultrasonic extraction time of 15 min,ultrasonic power 105 W,and extraction yield of 58.99％.The various physicochemical properties of the oil were as follows:acid value of 25.42 mg KOH/g,iodine value of 3.85 g I2/100 g,saponification value of 282 mg KOH/g and refractive index of 1.450 5.The fatty acids of oil mainly contained 10 categories of fatty acids such as kwai acid (10.38％),lauric acid (84.21％),myristic acid (1.38％),palmitic acid (0.47％) oleic acid (1.48％),linoleic acid (0.91％),linolenic acid (0.39％),palmitoleic acid (0.012％),stearic acid (0.090％) and arachidic acid (0.046％).Carbon chain length of fatty acids among these fatty acids was in range of C10 ～ C20 and for the C12 ～ C20 fatty acids,the content was 89.62％.Linolenic acid was 0.39％,which was less than 12％.18 carbon four acids have not been excluded;fatty acid composition,mass fraction and physicochemical properties could meet biodiesel standards.Obtained from EMBED Equation.3 (3 EMBED Equation.3 (MERGEFORMAT) orthogonal tests,the optimal conditions of the biodiesel preparation for cinnamomum burmannii oil transesterification were detected to be as follows:oleyl alcohol molar ratio of 1 ∶ 6,catalyst dosage of 1.0％ for oil mass,reaction time of 2 h,reaction temperature at 60 ℃ and conversion ratio of 96.38％.The detection results showed that the cinnamomum burmannii biodiesel performance index was close to those of 0# diesel and GB/T 20828-2007 〈Diesel Engine Fuels Blended Use of Biodiesel〉.Thus it should be a sort of safe and green biological energy.
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NSTL
万方数据
维普
