Switchable-Hydrophilicity Triethylamine: Formation and Synergistic Effects of Asphaltenes in Stabilizing Emulsions Droplets

In this study, SHT (switchable-hydrophilicity triethylamine, [Et(3)NH]·[HCO(3)]) has been synthesized and instrumentally characterized by Fourier transform–infrared spectroscopy (FTIR) and (13)C nuclear magnetic resonance (NMR). The operational synthesis conditions of SHT were optimized and determin...

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Detalles Bibliográficos
Autores principales: Li, Xingang, Hou, Jinjian, Sui, Hong, Sun, Lingyu, Xu, Lin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6316943/
https://www.ncbi.nlm.nih.gov/pubmed/30513618
http://dx.doi.org/10.3390/ma11122431
Descripción
Sumario:In this study, SHT (switchable-hydrophilicity triethylamine, [Et(3)NH]·[HCO(3)]) has been synthesized and instrumentally characterized by Fourier transform–infrared spectroscopy (FTIR) and (13)C nuclear magnetic resonance (NMR). The operational synthesis conditions of SHT were optimized and determined at 25 °C, Et(3)N/H(2)O volume ratio of 1:2 and CO(2) injection rate at 300 mL/min. When it was used to extract heavy oil from unconventional oil ore, it was found that it could break maltenes-in-water emulsions. When asphaltenes were present in the oil phase, it was observed that SHT could cooperate with asphaltenes. These results indicated that SHT works with asphaltenes, leading to synergistic effects in stabilizing oil–water (o/w) emulsions.

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