TY - JOUR
T1 - Prediction of surface tension of heavy oil based on principle of corresponding states combined with detailed composition and molecular structure analysis
AU - Mukawa, Yuichi
AU - Yamagiwa, Koshiro
AU - Shoji, Eita
AU - Kubo, Masaki
AU - Tsukada, Takao
AU - Teratani, Shogo
AU - Katano, Keita
N1 - Funding Information:
This research was supported by Ministry of Economy, Trade and Industry (METI) and Japan Petroleum Energy Center (JPEC).
PY - 2020/7/20
Y1 - 2020/7/20
N2 - In this work, a new method of predicting the surface tension of heavy oils and its temperature dependence was developed. The surface tensions of five fractions and residue fractionated by the vacuum distillation of atmospheric residue (AR), and AR itself were predicted, based on a detailed composition and molecular structure analysis, i.e., “petroleomics”. In this method, the chemical compositions and molecular structures of compounds included in the fractions and residue were identified by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS), and then the critical pressure, critical temperature and boiling point of each compound were calculated by the group contribution method. Next, using the calculated properties, the surface tension of each compound was predicted by the principle of corresponding states. Finally, a mixing rule, in which the surface tension of mixtures was expressed as a linear function of mole fraction of each compound, was used to predict the surface tensions of the five fractions and residue of AR and AR itself. By comparing the predicted and experimental values of the surface tensions and their temperature dependence, it was found that the present method is useful for predicting the surface tension of heavy oils.
AB - In this work, a new method of predicting the surface tension of heavy oils and its temperature dependence was developed. The surface tensions of five fractions and residue fractionated by the vacuum distillation of atmospheric residue (AR), and AR itself were predicted, based on a detailed composition and molecular structure analysis, i.e., “petroleomics”. In this method, the chemical compositions and molecular structures of compounds included in the fractions and residue were identified by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS), and then the critical pressure, critical temperature and boiling point of each compound were calculated by the group contribution method. Next, using the calculated properties, the surface tension of each compound was predicted by the principle of corresponding states. Finally, a mixing rule, in which the surface tension of mixtures was expressed as a linear function of mole fraction of each compound, was used to predict the surface tensions of the five fractions and residue of AR and AR itself. By comparing the predicted and experimental values of the surface tensions and their temperature dependence, it was found that the present method is useful for predicting the surface tension of heavy oils.
KW - Heavy oil
KW - Petroleomics
KW - Principle of corresponding states
KW - Surface tension
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U2 - 10.3775/jie.99.75
DO - 10.3775/jie.99.75
M3 - Article
AN - SCOPUS:85091025385
VL - 99
SP - 75
EP - 81
JO - Nenryo Kyokai-Shi/Journal of the Fuel Society of Japan
JF - Nenryo Kyokai-Shi/Journal of the Fuel Society of Japan
SN - 0916-8753
IS - 7
ER -