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  • 1 Programa de Ingeniería Molecular, Instituto Mexicano del Petróleo, Eje Central Norte Lázaro Cárdenas 152, San Bartolo Atepehuacan, C.P. 07730, Mexico, DF, México
  • | 2 Escuela Superior de Ingeniería Química e Industrial Extractivas, Instituto Politécnico Nacional, Unidad Profesional “Adolfo López Mateos”, Zacatenco, Del. Gustavo A. Madero, C.P. 07738, Mexico, DF, Mexico
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Abstract

A simplified equation relating water droplet size distribution to crystallization temperature, determined from differential scanning calorimetry (DSC) curves of aqueous emulsions of petroleum is reported in this article. A series of water-in-oil (W/O) emulsions was prepared by dispersion of water in different Mexican crude oils; in a classical DSC experiment, these emulsions were submitted to a regular heating and cooling cycle within temperatures including freezing and heating of dispersed water. The Z-average diameters of the water drops (Ddz) were estimated this way and correlated with petroleum composition.

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