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首页> 外文期刊>Journal of Oleo Science >Acid Esterification-Alkaline Transesterification Process for Methyl Ester Production from Crude Rubber Seed Oil
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Acid Esterification-Alkaline Transesterification Process for Methyl Ester Production from Crude Rubber Seed Oil

机译：用酸酯化-碱性酯交换法生产橡胶籽油中的甲基酯

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摘要

This study aims to examine methods and the most suitable conditions for producing methyl ester from crude rubber seed oil. An acid esterification-alkaline transesterification process is proposed. In the experiment, the 20% FFA of crude rubber seed oil could be reduced to 3% FFA by acid esterification. The product after esterined was then tranesterified by alkaline transesterification process. By this method, the maximum yield of methyl ester was 90% by mass. The overall consumption of methanol was 10.5:1 by molar ratio. The yielded methyl ester was tested for its fuel properties and met required standards. The major fatty acid methyl ester compositions were analyzed and constituted of methyl linoleate 41.57%, methyl oleate 24.87%, and methyl lonolenate 15.16%. Therefore, the cetane number of methyl ester could be estimated as 47.85, while the tested result of motor cetane number was 51.20.
机译：这项研究旨在研究从粗橡胶籽油生产甲酯的方法和最合适的条件。提出了一种酸酯化-碱性酯交换方法。在实验中，可通过酸酯化将橡胶籽油的20％FFA降低至3％FFA。酯化后的产物然后通过碱性酯交换过程进行酯交换。通过该方法，甲酯的最大产率为90质量％。以摩尔比计，甲醇的总消耗为10.5∶1。测试了所得甲酯的燃料性质，并符合要求的标准。分析了主要的脂肪酸甲酯组成，其由亚油酸甲酯41.57％，油酸甲酯24.87％和亚油酸甲酯15.16％组成。因此，甲酯的十六烷值估计为47.85，而运动十六烷值的测试结果为51.20。

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