Imidazolium-based ionic liquids (IL)s supported on Fe۳O۴@BCD as Green and Reversible Demulsifier for Breaking of Crude Oil Emulsions

Application of the chemical demulsifiers is the best choice for breaking the W/O emulsions in the petroleum industry. Here, novel, environmentally friendly, efficient, and easily reusable Fe۳O۴ nanomagnetic compounds based on imidazolium-decorated cyclodextrin were successfully synthesized and applied to demulsify the water in crude oil (W/O) emulsions. Synthesized material employed to break the (۱۰:۹۰ and ۳۰:۷۰ Vol%) W/O emulsions at the concentration range of ۱۰۰۰-۵۰۰۰ ppm. The maximum demulsification efficiency (DE%) of ۹۲% was obtained using a Fe۳O۴@ß-CD@[ImSi-C۱۰][Br] at ۵۰۰۰ ppm for (۳۰:۷۰ Vol%) W/O emulsion. Interfacial tension (IFT) values decreased with increasing the DE%. The Fe۳O۴@BCD@[ImSi-C۱۰][Br] demulsifier was reused five times with acceptable yields. The cooperation of imidazolium and ẞB-CD in the green nanomagnetic demulsifiers led to the efficient demulsification of the W/O emulsions.

کلیدواژه ها:

Crude oil ، Ionic liquid ، Demulsification ، Cyclodextrin ، Imidazolium