Demulsifiers are used at the ELOU units of oil refineries designed to prevent the formation, as well as to destroy the already formed oil emulsions. Demulsifiers are surfactants (surfactants), which, unlike natural emulsifiers, contribute to a significant decrease in the resistance of oil emulsions. Demulsifiers manufactured by ANKHK allow the oil to be prepared for further processing as quickly as possible at the AVT (AT) installation.