Modeling of CO2 vapor-liquid equilibrium in Colombian heavy oil using SARA analysis
The solubility of CO2 in Colombian heavy oil was calculated using the Peng-Robinson cubic equation of state and the Lee-Kesler correlations. The crude was represented as a mixture of pseudo-components and for each one of them, the thermodynamic and critical properties were estimated. The results obtained in representing the oil with four, five and six pseudo-components show that all these representations produce similar results and therefore the use of four pseudo-components is sufficient and has a lower computational cost. Excellent results were obtained by comparing the experimental and calculated data. For this system, it is enough to have a complete characterization of the SARA analysis and to use four pseudo-components to adequately model the vapor-liquid equilibrium of CO2 -heavy oil.
| Main Authors: | , , , |
|---|---|
| Format: | Digital revista |
| Language: | English |
| Published: |
Universidad Nacional de Colombia
2015
|
| Online Access: | http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0012-73532015000300013 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|