Influence of Ionic Liquids on the Viscoelastic Properties of Crude Oil Emulsions

Influence of Ionic Liquids on the Viscoelastic Properties of Crude Oil Emulsions

Thermochemical treatments are traditionally employed to perform the separation between the oil and water phases in the petroleum industry. The chemical agents have the function of reducing the barrier rigidity formed by natural surfactants present in the emulsion, thus favoring destabilization. The...

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Veröffentlicht in:Energy & fuels 2017-09, Vol.31 (9), p.9132-9139
Hauptverfasser: Alves, Douglas, Lourenço, Everton, Franceschi, Elton, Santos, Alexandre F, Santana, César Costapinto, Borges, Gustavo, Dariva, Claudio
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container_end_page 9139
container_issue 9
container_start_page 9132
container_title Energy & fuels
container_volume 31
creator Alves, Douglas
Lourenço, Everton
Franceschi, Elton
Santos, Alexandre F
Santana, César Costapinto
Borges, Gustavo
Dariva, Claudio
description Thermochemical treatments are traditionally employed to perform the separation between the oil and water phases in the petroleum industry. The chemical agents have the function of reducing the barrier rigidity formed by natural surfactants present in the emulsion, thus favoring destabilization. The main objective of this study was to analyze the viscoelastic properties of samples composed of water and a crude oil with the addition of distinct ionic liquids. The methodology used to obtain the interfacial properties was the pedant drop technique. The results showed that the addition of the ionic liquids induced a reduction in the interfacial elasticity and an increase in the compressibility of interfacial films. It was also observed that an enhancement in the alkyl chain length has a positive effect on changing the interfacial properties. The ionic liquid with the highest alkyl chain length investigated ([C12min]+[NTf2]−) showed the ability to produce the more elastic films for the crude oil investigated.
doi_str_mv 10.1021/acs.energyfuels.7b01418
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title Influence of Ionic Liquids on the Viscoelastic Properties of Crude Oil Emulsions
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