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    • 4. 发明授权
    • Method of using high molecular weight demulsifiers
    • 使用高分子量破乳剂的方法
    • US07018957B2
    • 2006-03-28
    • US10371621
    • 2003-02-21
    • Harold Becker
    • Harold Becker
    • C10M175/04
    • B01D17/047C08F246/00C10G33/04
    • Homopolymers and copolymers of an esterified reaction product of an epoxidized mono-hydroxyl alcohol and a free radical polymerizable monomer are highly effective demulsifying agents. The molecular weight of the polymer is between from about 10,000 to about 500,000. The epoxidized mono-hydroxyl alcohol is preferably a reaction product of a C6–C30 linear or branched alcohol and an alkylene oxide. The alkylene oxide is preferably either ethylene oxide, propylene oxide or butylenes oxide or a mixture thereof. The free radical polymerizable monomer is preferably a vinyl aromatic compound or an acrylic or methacrylic based monomer. The polymer preferably comprises a micellar assembly. Such polymers are highly effective in demulsifying crude oils having API gravities of from 8 to 28 or a crude oil having a viscosity between from about 3 to about 10,000 CPS @ at 25° C.
    • 环氧化单羟基醇和可自由基聚合单体的酯化反应产物的均聚物和共聚物是高效的破乳剂。 聚合物的分子量在约10,000至约500,000之间。 环氧化单羟基醇优选为C 6 -C 30直链或支链醇与环氧烷的反应产物。 烯化氧优选为环氧乙烷,环氧丙烷或丁烯氧化物或其混合物。 可自由基聚合的单体优选为乙烯基芳族化合物或丙烯酸或甲基丙烯酸系单体。 聚合物优选包含胶束组件。 这样的聚合物对具有8至28的API重量的原油进行破乳,或在25℃粘度为约3至约10,000CPS @的原油是非常有效的。