Measurement and prediction of surface tension of vacuum distillates and residues from heavy oil

Yuichi Mukawa, Sho Tsujimura, Koshiro Yamagiwa, Masaki Kubo, Takao Tsukada, Shogo Teratani

Research output: Contribution to journalArticlepeer-review

Abstract

The surface tension of heavy oil and its temperature dependence were measured by the pendant drop method under atmospheric pressure in the temperature range of 30 to 250 ° C. The surface tension was determined by fitting the numerical solution of the Young-Laplace equation to the image of a droplet hanging at the tip of a 1/16"stainless steel tube. The distillates and residues fractionated by vacuum distillation of atmospheric residue and bitumen were used as samples. The surface tensions of all samples decreased linearly with temperature. The fractionation of samples by column chromatography revealed that the samples, which were poor in saturates and rich in aromatics, had higher surface tension. In addition, a model on the basis of the principle of corresponding states was used to predict the surface tension of heavy oil. It was demonstrated that the model was capable of predicting the surface tension of the distillates with good accuracy, but it was insufficient to predict the surface tension of residue.

Original languageEnglish
Pages (from-to)1142-1148
Number of pages7
JournalNihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy
Volume95
Issue number12
DOIs
Publication statusPublished - 2016

Keywords

  • Heavy oil
  • Principle of corresponding states
  • Surface tension

ASJC Scopus subject areas

  • Energy(all)

Fingerprint Dive into the research topics of 'Measurement and prediction of surface tension of vacuum distillates and residues from heavy oil'. Together they form a unique fingerprint.

Cite this