A comparison of conventional and in situ methods of transesterification of seed oil from a series of sunflower cultivars
A comparison of conventional and in situ methods of transesterification of seed oil from a series of sunflower cultivars
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一系列向日葵品种种子油常规与原位酯交换方法的比较
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
C. D’Arcy
中科院分区：
文献类型：
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作者：
K. J. Harrington;C. D’Arcy
植物油单酯的价格是限制其用作柴油发动机替代燃料的主要限制因素之一。这一成本可以通过增加一定数量的油籽生产的酯的产率来降低。葵花籽油与酸化的甲醇原位酯交换反应产生的脂肪酸甲酯的产率明显高于用预提种子油进行的传统反应所得的产率。产量提高了20%以上，这可能与种子的含水率有关。原位反应产物的脂肪酯组成和浊点几乎与用传统技术生产的酯相同。
The cost of vegetable oil monoesters represents one of the major restrictions on their use as an alternative fuel for diesel engines. This cost can be reduced by increasing the yield of esters produced from a given quantity of oilseed.Transesterification of sunflowerseed oil in situ with acidified methanol has been shown to produce fatty acid methyl esters in yields significantly greater than those obtained from conventional reaction with pre-extracted seed oil. Yield improvements of over 20% were achieved and could be related to the moisture content of the seed. Fatty ester compositions and cloud points of the products from the in situ reactions were virtually identical to those of esters produced using conventional techniques.