Abstract: The article is devoted to the study of the separation of oil-water emulsions. Most of the existing fields are at the final stage of development, which is characterized by an increase in the water content of the extracted oil fraction. In the presence of highly stable "old" trap oils, separation methods with the use of demulsifiers are used to increase the efficiency and reliability of their dewatering processes. The most widespread, at present, are demulsifiers of a non-ionic nature. The work evaluated the effectiveness of three demulsifiers that comply with state sanitary and epidemiological rules and regulations: Emalsatron R2601-A, Chemtechno-527, SNPH-4114. The studied demulsifiers have been successfully tested and can be recommended for industrial use, as they have a number of advantages.
Index terms: processing technologies, oil-water emulsions, demulsifier

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