Fluid phase equilibria during propylene carbonate synthesis from propylene oxide in carbon dioxide medium

- Guanidinium based catalyst immobilized on SBA-15 for propylene carbonate synthesis.
- The CPA model was used to analyze and estimate the phase behavior.
- Pure fluid and binary interaction parameters of the CPA model were obtained.
- The number and composition of the phases during course of reaction were predicted.
- Maximum yield in CO2-expanded reaction phase close to single phase region.