Some Factors Affecting the Demulsification Efficiency of Modified Alkyl Benzene Sulfonic Acid in Petroleum Industry

In this work, seven new non-ionic demulsifiers using different units of ethylene oxide (EO) and propylene oxide (PO) were synthesised. The chemical structure of the prepared demulsifiers was confirmed using Fourier transform-infrared spectroscopy and (HNMR)-H-1 spectroscopy. The effect of demulsifier concentrations and water loading percentage on demulsification performance were assessed at a temperature of 45 degrees C. Effect of (EO) content, hydrophilic-lipophilic balance (HLB) and relative solubility number (RSN) on the demulsifiers' performance were investigated. Also, the kinematics of the demulsification process was photographed with an optical polarising microscope. The obtained results show that the maximum demulsification efficiency by L9 at concentration 800 ppm, water content 50%, 120 min and 45 degrees C was 85%.