Which thermodynamic equation should be used for the separation of styrene and water?

2008-01-24View Original

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Question: Which thermodynamic equation should be used for the separation of styrene and water?

Reply #22008-01-24

Just now, I tried using SRK and NTRL at a pressure of 1.5 MPa; SRK used water for phase separation while NTRL employed the Henry option. The results were not very different, and I’m not sure how these methods are applied in practice I appreciate your experienced guidance.

Reply #32008-01-24

To separate styrene from trace water, either SRK or NRTL can be used. Based on personal experience, NRTL is better at low pressures; whereas at 1.5 MPa, the SRK equation is more suitable. Based on previous calculations, the pressure is negative, and indeed the two methods differ little, as the original poster said.

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