Abedi, JalalShirazi Manesh, Amir Ahmad2015-09-282015-09-282015Shirazi Manesh, A. A. (2015). Thermodynamic Modeling of Asphaltene Precipitation Using Cubic Plus Association Equation of State (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/28311http://hdl.handle.net/11023/2533The ability to predict the thermodynamic conditions which result in asphaltene precipitation and its severity has many applications in industry. Asphaltene precipitation can be interpreted as a result of the competition between physical and association interactions between asphaltene molecules and asphaltene molecules with other mixture components. Hence, the CPA EoS is an excellent choice for modelling this phenomenon. In this thesis, a new version of the CPA EoS was developed. Efficient and reliable phase equilibrium calculation programs including isothermal flash and phase envelope constructor programs were prepared. A comparison of the results using the developed programs and commercial software revealed abilities of the developed programs. The asphaltene precipitation modelling results were compared to those of Li and Firoozabadi who used a slightly different version of the CPA EoS. The case studies and conditions studied in this thesis presented some unnoticed behaviours and a general improvement over their results.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.EnergyEngineering--ChemicalEngineering--PetroleumThermodynamicsModelingAsphaltene PrecipitationEquation of StateCubic Plus AssociationPhase Equilibrium Calculationsmaster thesis10.11575/PRISM/28311