Phase Behavior of Sorbitan Monopalmitate Surfactant in Supercritical Carbon Dioxide 


Vol. 19,  No. 1, pp. 8-12, Mar.  2013


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  Abstract

Phase behavior of carbon dioxide + surfactant binary system and carbon dioxide + surfactant + water ternary system was investigated at the temperatures from 318 K to 348 K by using high pressure vapor liquid equilibrium apparatus containing variable-volume view cell. Sorbitan monopalmitate was used as the surfactant. The cloud point pressures for the binary mixture of carbon dioxide + sorbitan monopalmitate increased with an increasing of system temperatures and the maximum cloud point pressure was observed at the composition of 0.226 wt% of sorbitan monopalmitate. On the other hand, as the temperatures and compositions of water increased, the cloud point pressures for ternary system containing 0.1 wt% of sorbitan monopalmitate increased significantly. For the ternary system of constant 0.2 wt% of water, the cloud point pressure curves show relatively flat according to the change of compositions of surfactant. The cloud point pressures increased when the temperatures and compositions of water increased.

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  Cite this article

[IEEE Style]

O. KH, K. EJ, S. HY, "Phase Behavior of Sorbitan Monopalmitate Surfactant in Supercritical Carbon Dioxide," Clean Technology, vol. 19, no. 1, pp. 8-12, 2013. DOI: .

[ACM Style]

Oh KH, Kim EJ, and Shin HY. 2013. Phase Behavior of Sorbitan Monopalmitate Surfactant in Supercritical Carbon Dioxide. Clean Technology, 19, 1, (2013), 8-12. DOI: .

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