Synergistic effect of disordered mesoporous silica and nonionic surfactant on demulsification efficiency of water-in-crude oil emulsions

Subject Areas :

Forough Mohammadi ¹ , Haleh Sanaeishoar ² , Elham Tahanpesar ³

1 - Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
2 - Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
3 - Department of Chemistry, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

Received: 2022-12-10 Accepted : 2023-01-28 Published : 2023-04-01

Keywords: Water in crude oil emulsions, Demulsifiers, Demulsification efficiency, Nonyl phenol ethoxylates, Disordered mesoporous silica KIT-1,

Abstract :

This study focused on their usefulness asa nano demulsifier. KIT-1was characterized via FT-IR, XRD, SEMand Nonyl phenol ethoxylates (n = 6, 12 and 20 denoted as NPE-6, NPE-12 and NPE-20 respectively) surfactants were used withcommercialdemulsifier. The result showed that composition ofKIT-1and nonyl phenol ethoxylates (NPEs) in crude oil emulsion greatly improve the demulsificationefficiencyof the original demulsifier. It was found that the best demulsifier composition for breakdown of crude oil emulsion was the one based (NPE-12) andKIT-1.The results clearly showed that the sample with the best water separation performance would raise demulsification efficiency to a value of 95%.