Abstract
The density of three glycols, namely Monoethylene glycol (MEG), Diethylene glycol (DEG), and Triethylene glycol (TEG) was measured in the temperature range from 298.15 K to 423.15 K and pressures up to 140.0 MPa using a vibrating tube density meter Anton Paar DMA-HPM, coupled with a high-pressure mPDS 5 unit. The modified Tait-Tammann equation was used to correlate the experimental density, which gave an absolute average relative deviation (AARD) of less than 0.2%. Derived properties such as isobaric thermal expansion and isothermal compressibility coefficients were estimated and discussed. Furthermore, the density of the binary systems composed by the aforementioned glycols (1) + water (2) was also measured in the (273.15, 373.15) K temperature range at atmospheric pressure. The Cubic-Plus-Association (CPA) and the simplified version of the Perturbed-Chain Statistical Associating Fluid Theory (PC-SAFT) equations of state were used to correlate the newly measured data, with deviations less than 3.7% for pure component and 12.0% for the binary systems.
Original language | English |
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Article number | 113980 |
Journal | Fluid Phase Equilibria |
Volume | 577 |
Number of pages | 15 |
ISSN | 0378-3812 |
DOIs | |
Publication status | Published - 2024 |
Event | 16th International Conference On Properties And Phase Equilibria For Product And Process Design (PPEPPD-2023) - Tarragona, Spain Duration: 21 May 2023 → 25 May 2023 |
Conference
Conference | 16th International Conference On Properties And Phase Equilibria For Product And Process Design (PPEPPD-2023) |
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Country/Territory | Spain |
City | Tarragona |
Period | 21/05/2023 → 25/05/2023 |
Keywords
- PC-SAFT
- Cubic-plus-association
- Density
- Experimental measurements
- Glycol