Journal
RUSSIAN JOURNAL OF GENERAL CHEMISTRY
Volume 92, Issue 3, Pages 457-463Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1070363222030136
Keywords
demulsification; crude oil emulsion; maleic anhydride; demulsifier
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Funding
- Foundation of Liaoning Key Laboratory of Chemical Additive Synthesis and Separation [ZJNK2106]
- Liaoning Provincial Department of Education [LJKZ1205]
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An amphiphilic polymer, PEG-PBMA, has been prepared and evaluated as a potential demulsifier for heavy crude oil emulsion. The results show that PEG-PBMA has the highest demulsification efficiency among the tested demulsifiers.
In this study an amphiphilic polymer has been designed, produced and evaluated. Poly(butylacrylate-maleic anhydride) (PBMA) has been prepared and modified by monomethoxypolyethylene glycol (PEG) with formation of an amphiphilic polymer (PEG-PBMA). Demulsification efficiency of PEG-PBMA and commercially available chemical demulsifiers has been studied in a simulated heavy crude oil emulsion (Liaohe Oil Field) by the bottle test method. The results demonstrate that demulsification efficiency of PEG-PBMA, AE-121, TA-1031, and SP-169 can reach 86.6, 76.4, 68.0, and 54.6%, respectively. The studies have revealed that PEG-PBMA can find potential application as efficient demulsifier for breaking crude oil emulsion, especially for heavy crude oil emulsions.
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