聚（乙烯-醋酸乙烯酯）降凝剂对大豆生物柴油混合燃料冷流性能及结晶行为的影响
Effect of poly(ethylene-vinyl acetate) pour point depressant on the cold flow properties and crystallization behavior of soybean biodiesel blends fuel.
作者信息
Liu Jinbao, Wang Chunhua, Liu Qian, Zhang Fen, Liu Xiaojie, Sun Min
机构信息
School of Health and Social Care, Shanghai Urban Construction Vocational College, Shanghai, China.
出版信息
Turk J Chem. 2021 Sep 23;46(2):311-319. doi: 10.3906/kim-2106-49. eCollection 2022.
Although biodiesel-diesel blends are being widely used in diesel engines, investigations on its cold flow properties and crystallization behavior are still scarce. In this paper, poly(ethylene-vinyl acetate) (PEVA) pour point depressant and petroleum diesel were worked together to enhance the cold flow properties of soybean biodiesel. PEVA presented a better positive effect in reducing the cold filter plugging point (CFPP) of biodiesel blends. B40 treated with 1% PEVA exerted the best cold flow properties, and its CFPP was decreased by -14 °C. In addition, the crystallization behavior was changed variously. The sizes of crystals were decreased as well as the number of crystals was increased notably.
尽管生物柴油-柴油混合燃料正在柴油发动机中广泛使用，但对其冷流性能和结晶行为的研究仍然很少。本文中，聚（乙烯-醋酸乙烯酯）（PEVA）降凝剂与石油柴油协同作用，以提高大豆生物柴油的冷流性能。PEVA在降低生物柴油混合燃料的冷滤点（CFPP）方面表现出更好的积极效果。用1%PEVA处理的B40具有最佳的冷流性能，其CFPP降低了14℃。此外，结晶行为也发生了不同程度的变化。晶体尺寸减小，晶体数量显著增加。
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