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T / K 410 390 370 350 330 310 290 270 T / K 390 370 350 330 310 290 270 Experimental Methods, Results and Discussion 0.0 0.2 0.4 0.6 0.8 1.0 x C8F18 0.0 0.2 0.4 0.6 0.8 1.0 φ C8F18 Figure II.18. Experimental and correlated coexisting curve of perfluoro-n-octane + alkanes (C6 - C9) in terms of mole fraction (a) and volume fraction (b). Symbols represent solubility in n-hexane (♦), n-heptane (■), n-octane (▲) and n-nonane (●). (*) Represents the critical point for each mixture. The non-filled symbols in Figure II.17 (a) represent the effect of the pressure on the liquid-liquid phase diagram. - 83 - (a) (b)
References Experimental Methods, Results and Discussion Abedi, S.J.; Cai, H.-Y.; Seyfaie, S.; Shaw, J.M., Simultaneous Phase Behaviour, Elemental Composition and Density Measurement Using X-ray Imaging, Fluid Phase Equilibria (1999) 158–160: 775 Albert H. J.; Wood, R. H., High-Precision Flow Densimeter for Fluids at Temperatures to 700 K and Pressures to 40 MPa, Rev. Sci. Instrum. (1984) 55: 589 Ambrose D., Reference Values of Vapour Pressure. The Vapour Pressure of Benzene and Hexafluorobenzene, J. Chem. Thermodynamics (1981) 13: 1161 Ambrose, D.; Ewing, M. B.; Ghiasse, N. B.; Ochoa, J. C. Sanchez, J. Chem. Thermodynamics (1990) 22: 589 Ambrose, D.; Ellender, J. H. The Vapour Pressure of Octafluorotoluene, J. Chem. Thermodynamics (1981) 13: 901 Barton, A. F. M., CRC Handbook of Solubility Parameters and Other Cohesion Parameters, (1991) 2 nd Edition, CRC Press Battino, R.; Clever, H.L., The Solubility of Gases in Liquids, Chem. Rev. (1966) 66: 395 Battino, R.; Wilcock, R.; Wilhelm, E., Low-Pressure Solubility of Gases in Liquid Water, Chem. Rev. (1977) 77: 219 Battino, R., The Ostwald Coefficient of Gas Solubility, Fluid Phase Equilibria (1984) 15: 231 Bauer, N.; Lewin, S. Z., Determination of Density, in Weissberger A. ed. (1972) Bedford, R. G.; Dunlap, R. D., Solubilities and Volume Changes Attending Mixing for the System: Perfluoro-n-hexane-n-hexane, J. Am. Chem. Soc. (1958) 80: 282 Ben Naim, A.; Baer, S. Method for Measuring Solubilities of Slightly Soluble Gases in Liquids Trans. Faraday Soc. (1963) 59: 2735 Ben Naim, A. Hydrophobic Interactions, Plenum Press, New York (1980) Ben Naim, A. Marcus, Y. Solvation Thermodynamics of Nonionic Solutes, J. Chem. Phys. (1984) 81: 2016 Ben Naim, A. On the Evolution of the Concept of Solvation Thermodynamics, J. of Solution Chem. (2001) 30: 475 Benning, A. F.; Park, J.D., U. S. Patent 2, (1949) 490, 764 - 84 -
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Ana Maria Antunes Dias Universidade
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o júri presidente Prof. Dr. Joaqui
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palavras-chave resumo perfluoroalca
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Contents Notation List of Tables Li
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Notation Abbreviations AAD EoS LCST
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List of Tables Table I.1 Average Bo
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Table III.6 Adjusted Binary Paramet
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Figure II.9 Comparison between corr
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Figure III.8 Temperature-density di
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Figure III.25 Vapor-phase mole frac
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I.1. Fluorine Properties General In
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Table I.2. Physicochemical Properti
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General Introduction order to compa
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General Introduction the numerous a
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General Introduction carbon dioxide
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General Introduction animals. That
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General Introduction Table I.3. Lit
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References General Introduction Ban
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General Introduction Hildebrand, J.
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General Introduction Rowinsky EK. N
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II. Part EXPERIMENTAL METHODS, RESU
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Experimental Methods, Results and D
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Page 47 and 48:
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Table II.3. (continued) T K ρexp g
Page 51 and 52: ρ / g.cm-3 1.750 1.730 1.710 1.690
Page 53 and 54: Experimental Methods, Results and D
Page 55 and 56: I. 3. Vapour pressure I.3.1. Biblio
Page 57 and 58: I.3.2. Apparatus and Procedure Expe
Page 59 and 60: I.3.3. Experimental Results and Dis
Page 63 and 64: Table II.8. (continued) T K Pexp kP
Page 67 and 68: ΔH vap = TΔS vap 2⎛ d ln P ⎞
Page 69 and 70: I.4. Solubility at atmospheric pres
Page 79 and 80: x2 (T,P2) 7.0E-03 6.0E-03 5.0E-03 4
Page 81 and 82: L 2,1 0.70 0.60 0.50 0.40 0.30 285
Page 93 and 94: P / MPa 6 5 4 3 2 1 0 P / MPa 14 12
Page 95 and 96: II.6. Liquid - Liquid Equilibrium I
Page 101: 0 τ β Δ1 2Δ1 [ 1+ B τ + B τ +
Page 111 and 112: III.1. Introduction Modeling Most c
Page 113 and 114: Modeling The pioneering work of Wer
Page 115 and 116: III.2. Soft-SAFT Model Modeling A S
Page 117 and 118: Modeling The equation of state is w
Page 119 and 120: Chain Term Modeling Originally Wert
Page 121 and 122: Modeling The model is easily extend
Page 123 and 124: ( ) ( ) ∑∑∑ 3 2 2 2 2 qq 32π
Page 125 and 126: Modeling HRT is a promising theory,
Page 127 and 128: ( ρ) ρ , 0 ≤ ρ ( ρ) 2 Modelin
Page 129 and 130: III.3. Application to Pure Compound
Page 131 and 132: Modeling From the optimised paramet
Page 133 and 134: T / K 400 350 300 250 200 150 100 5
Page 135 and 136: ln Pvap 1.0E+01 1.0E+00 1.0E-01 1.0
Page 137 and 138: Modeling Table III.2. Absolute Aver
Page 139 and 140: Modeling The correlation coefficien
Page 141 and 142: Pvap (MPa) 4.00 3.50 3.00 2.50 2.00
Page 143 and 144: Modeling The mixture parameters a a
Page 145 and 146: Modeling the assumptions made by th
Page 147 and 148: Modeling between oxygen and perfluo
Page 149 and 150: xSolute 5.5E-03 5.0E-03 4.5E-03 4.0
Page 151 and 152: Modeling previous work, dealing wit
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Modeling These results confirm that
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Modeling CO2 binary mixtures using
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Modeling average deviation (AAD) be
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P / MPa 14 12 10 8 6 4 2 0 0 0.2 0.
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Modeling Figures III.16, III.17 and
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Modeling calculations from the orig
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Table III.9. References for VLE exp
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P / MPa 20 18 16 14 12 10 8 6 4 2 0
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Modeling Finally, Figure III.24 pre
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III.4.4. VLE and LLE of Alkane and
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Modeling number of perfluro-n-alkan
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y C6F14 1.0 0.8 0.6 0.4 0.2 0.0 0.0
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P / MPa 0.08 0.07 0.06 0.05 0.04 0.
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P / MPa 0.12 0.10 0.08 0.06 0.04 0.
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Modeling approach based on the meth
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Modeling Blas, F. J.; Vega, L. F.,
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DIPPR, Thermophysical Properties Da
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Modeling Hildebrand, J. H.; Fisher,
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Modeling McCabe, C.; Jackson, SAFT-
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Modeling Poling, B.; Prauznitz, J.;
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Modeling Wertheim, M. S., Fluids wi
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