Synthesis and evaluation of demulsifier in crude oil treatment

• Main Authors: Ali, Ali Abdulkhabeer, Naghmash, Ali Abdulhakeem
• Format: Conference Proceeding
• Language: English
• Subjects: Crude oil; Density; Differential thermal analysis; Ethane; Infrared spectroscopy; Micelles; Moisture content; Phthalic anhydride; Physical properties; Polymers; Ring opening polymerization; Specific gravity; Stability analysis; Sulfur content; Thermal stability; Viscosity
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0091943

The aim of this paper is to create a new polymeric Gemini surfactant as a demulsifier was synthesized in this paper. It was used to break the emulsion type w/o which has two parts, one of which is polar (water) and the other nonpolar (crude oil). Ring opening polymerization method used to prepare demulsifier by the reaction between Phthalic anhydride and 1,2-Bis(3- amino propyl amino) ethane. Physical properties of Nasiriya crude such as specific gravity, density, viscosity, water content and sediment and sulfur content have been performed in the laboratory. FT-IR spectra was measured for the diagnosis of active groups in the polymer, viscosity average molecular weight (Mv¯) of polymer was 3558 at k=0.0002 and α=0.76. Critical Micelles Concentration (CMC) of polymer was determined by conductivity method. The conductivity of synthetic polymer is found linearly proportional to the increase in the concentration of polymer. Thermal stability analysis of synthesized polymer (TGA and DTA curves) showed that polymer has high thermal stability. Karl Fisher method was used to determine the best value for separating water from crude oil was 73.3% at 100 ppm after 30 minutes.