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首页> 外文期刊>Journal of Dispersion Science and Technology >Synthesis of some oil spill dispersant based on sorbitol esters and their capability to disperse crude oil on seawater to alleviate its accumulation and environmental impact
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Synthesis of some oil spill dispersant based on sorbitol esters and their capability to disperse crude oil on seawater to alleviate its accumulation and environmental impact

机译：一些基于山梨醇酯的溢油分散剂的合成及其将原油分散在海水中以减轻其积累和环境影响的能力

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In this respect mono-, di-, and tri- sorbitol oleate esters [SMO, SDO, and STO] were prepared and then ethoxylated using ethylene oxide to obtain six sorbitol esters at different ethylene oxide content (e.o = 5, 12, 15, 20, 35, and 45). They were tested as oil spill dispersants individually and in blends. From the obtained data, it was found that the blends are more effective than the corresponding individual surfactants. The maximum dispersion capability for the prepared surfactants was obtained at HLB range from 9 to 11 for the both individual surfactants and blends. The increase of total carbon number in the surfactant alkyl group leads to increase dispersion capability of the dispersant. The wide range of ethylene oxide content was used, but the maximum dispersion efficiency was obtained at ethylene oxide = 20 in E(20)STO. Meanwhile, the dispersion capability increases when the interfacial tension decreases.
机译：在这方面，制备了单，二和三山梨醇油酸酯[SMO，SDO和STO]，然后使用环氧乙烷进行乙氧基化，得到六种山梨醇酯，环氧乙烷含量不同（eo = 5、12、15， 20、35和45）。它们分别和混合使用作为溢油分散剂进行了测试。根据获得的数据，发现共混物比相应的单独的表面活性剂更有效。对于单独的表面活性剂和共混物，在HLB为9-11的范围内获得了制备的表面活性剂的最大分散能力。表面活性剂烷基中总碳原子数的增加导致分散剂的分散能力提高。使用了宽范围的环氧乙烷含量，但在E（20）STO中环氧乙烷= 20时获得了最大分散效率。同时，当界面张力降低时，分散能力增加。

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