Demulsifying additive composition, method of using the same, and demulsifying method

摘要

The present invention relates to a demulsifying additive composition for demulsifying a water-in-oil emulsion caused by washing water in crude oil. Wherein the composition comprises: (a) one or more demulsifiers (component (a)); and (b) glyoxal, neutralized glyoxal, glyoxal derivatives and the like, and (c) phosphoric acid ( Component (c)). The present invention also relates to a method of using the demulsifying additive composition for demulsifying a water-in-oil emulsion caused by wash water in crude oil. The present invention also relates to a method for demulsification of a water-in-oil emulsion caused by washing water in crude oil by utilizing the present demulsifying additive composition. [Selection diagram] None