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Prediction of solubility of CH 4 , C 2 H 6 , CO 2 , N 2 and CO in bitumen
Author(s) -
Zirrahi Mohsen,
Hassanzadeh Hassan,
Abedi Jalal,
Moshfeghian Mahmood
Publication year - 2014
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.21877
Subject(s) - solubility , hydrocarbon , methane , asphalt , chemistry , equation of state , carbon dioxide , thermodynamics , analytical chemistry (journal) , materials science , organic chemistry , physics , composite material
An accurate model to calculate the solubility of light hydrocarbons (methane, CH 4 and ethane, C 2 H 6 ) and non‐hydrocarbon gases (carbon dioxide, CO 2 , nitrogen, N 2 and carbon monoxide, CO) in bitumen is required for the optimal design of bitumen and heavy oil recovery processes and transportation. In this work, we used the Krichevsky–Ilinskaya equation to predict the solubility of light solvents (CH 4 , C 2 H 6 , CO 2 , N 2 and CO) in bitumen from five reservoirs in Alberta, Canada. The Peng–Robinson (PR) equation of state (EoS) is used to treat the gas phase. The proposed model is then verified using available experimental solubility data of light solvents in bitumen, and good agreement is observed. The experimental data cover wide ranges of pressures and temperatures. The results show that the proposed model represents the available solubility data of light hydrocarbons (CH 4 and C 2 H 6 ) and non‐hydrocarbon solvents (CO 2 , N 2 and CO) in bitumen with absolute average relative deviations of <4.2% and 5.4%, respectively. These results can be applied to heavy oil and bitumen recovery processes.