The interfacially active asphaltenes (IAA, 1.75 wt % of the total asphaltenes) from Indonesian asphalt rocks have been proven to be the major component in stabilizing the water-in-oil (W/O) emulsion (stable even over 1 year) than other fractions in asphalt (i.e., asphaltenes, maltenes [asphalt without asphaltenes], and remaining asphaltenes [asphaltenes without IAA]). The droplet size of the IAA-stabilized emulsion was determined to be in the range of 10 to 20 μm. To demulsify this extremely stable emulsion, we synthesized a novel polyether demulsifier (JMNP) with rich oxygen by simple esterification and polymerization. When applying the JMNP and commercial demulsifiers (polyethylene glycol (PEG8000), SP169, PE1951, and AP2050) in breaking this emulsions, results showed that all of them could demulsify the IAA-stabilized emulsions. It is also found that the JMNP performs well in enhancing the demulsification of the IAA-stabilized emulsion, achieving complete dehydration of the emulsions in 30 min at 60 °C and 400 ppm. The types and number of oxygen-containing groups (hydroxyl, ester group, polyethylene oxide segment, and polypropylene oxide segment) in the demulsifiers are considered to play the key role in breaking of the IAA film and finally the coalescence of the water droplets. This primary test suggests that JMNP would be a potential candidate for the demulsification of water-in-heavy oil emulsions.

中文翻译：

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用于界面活性沥青稳定的油包水乳液有效破乳的新型聚醚

来自印尼沥青岩石的界面活性沥青质（IAA，占沥青质总量的1.75 wt％）已被证明是稳定油包水（W / O）乳液（甚至超过1年稳定）的主要成分。沥青中的馏分（即，沥青质，maltenes [不含沥青质的沥青]和其余的沥青质[不含IAA的沥青]）。IAA稳定的乳液的液滴尺寸确定为10至20μm。为了使这种极其稳定的乳液破乳，我们通过简单的酯化和聚合反应合成了一种富含氧气的新型聚醚破乳剂（JMNP）。当使用JMNP和市售破乳剂（聚乙二醇（PEG8000），SP169，PE1951和AP2050）破乳时，结果表明它们均可以使IAA稳定的乳化剂破乳。还发现JMNP在增强IAA稳定的乳液的反乳化方面表现良好，在60℃和400ppm下在30分钟内实现了乳液的完全脱水。破乳剂中含氧基团（羟基，酯基，聚环氧乙烷链段和聚环氧丙烷链段）的类型和数量被认为在破坏IAA膜并最终凝聚水滴中起关键作用。该初步测试表明，JMNP将是重油中水乳液破乳的潜在候选者。破乳剂中的聚丙烯酸酯和聚环氧丙烷片段）被认为在IAA膜的破裂以及最终水滴的聚结中起关键作用。该初步测试表明，JMNP将是重油中水乳液破乳的潜在候选者。破乳剂中的聚丙烯酸酯和聚环氧丙烷片段）被认为在IAA膜的破裂以及最终水滴的聚结中起关键作用。该初步测试表明，JMNP将是重油中水乳液破乳的潜在候选者。