Estimating vapor pressures of pure liquids
- Bayer Corp., New Martinsville, WV (United States)
Calculating the vapor pressures for pure liquid chemicals is a key step in designing equipment for separation of liquid mixtures. Here is a useful way to develop an equation for predicting vapor pressures over a range of temperatures. The technique uses known vapor pressure points for different temperatures. Although a vapor-pressure equation is being showcased in this article, the basic method has much broader applicability -- in fact, users can apply it to develop equations for any temperature-dependent model. The method can be easily adapted for use in software programs for mathematics evaluation, minimizing the need for any programming. The model used is the Antoine equation, which typically provides a good correlation with experimental or measured data.
- OSTI ID:
- 212242
- Journal Information:
- Chemical Engineering, Vol. 103, Issue 3; Other Information: PBD: Mar 1996
- Country of Publication:
- United States
- Language:
- English
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