The Compressibility Isotherms of Methane at Pressures to 1000 Atmospheres and at Temperatures From -70 to 200°

Kvalnes, Hamline M.; Gaddy, V. L.

doi:10.1021/ja01353a002

Cited by 86 publications

(41 citation statements)

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“…The volumetric behavior of the pure components has been extensively studied. Methane has been studied by several groups of investigators (5, 9,10) and was summarized by Olds ( 1 3 ) . Matthews and Hurd (10) have evaluated the thermodynamic properties from the pressure-volume temperature data previously mentioned ( 5 , 9,10).…”

Section: Page 514mentioning

confidence: 99%

Heterogeneous phase and volumetric behavior of the methane n‐heptane system at low temperatures

Kohn

1961

AIChE Journal

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A, reactor, sq.cm. a unit of volume, cm.-l C = concentration, moles/liter D = molecular diffusivity, sq.cm./ f = fractional acid conversion, dik = first-order reaction velocity L = bed height n = number of spheres MI = cross-sectional area of empty = packed bed surface area per sec. mensionless constant = mass flux rate for a single reacting sphere, moles/sq.cm-superficial velocity, dimensionless = molar concentration of surface active sites = over-all rate of reaction, moles/liter sec. = interfacial condition = time = time-of-flight (difference between the observed time for the start of concentration fall off at the exit of the bed and the inlet to the bed) = linear velocity based on free 2. 3. 4. 5. 6. .cross section, cm./sec. 8. 9.Greek Letters 8 = boundary-layer thickness, cm. 10. E o = dimensionless time ratio, to/ A = constant 8 = time = fraction voids in beds 11. t f Subscripts 12. f = bulk fluid condition 13. e = exit condition i = inlet condition m = mean value across the bed 14.

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Section: Page 514mentioning

confidence: 99%

Heterogeneous phase and volumetric behavior of the methane n‐heptane system at low temperatures

Kohn

1961

AIChE Journal

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“…are shown in Figure 6. Again the values for methane were interpolated from published data (5) and were plotted for the sake of comparison.…”

Section: And Engineering Chemistrymentioning

confidence: 99%

Phase Equilibria in Hydrocarbon Systems II. Methane-Propane System

Sage¹,

Lacey²,

Schaafsma³

1934

Ind. Eng. Chem.

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“…11 (a). Pressure deviations versus experimental pressures for temperatures between 195 and 300 K. Abbreviated references, with primary references denoted by asterisk, are: 45*, Goodwin (1974);4*, Trappeniers (1979); 37 Douslin (1964); 43*, Cheng (1972); 51*, Vennix (1966); 47, Kvalnes (1931); 46*, Goodwin (1974): 44, Gammon (1976): 7. Morris (1984); 49, Sivaraman (1986); and 42(a), Achtermann.…”

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Thermophysical Properties of Methane

Friend

Ely

Ingham

1989

Journal of Physical and Chemical Reference Data

189

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New correlations for the thermophysical properties of fluid methane are presented. The correlations are based on a critical evaluation of the available experimental data and have been developed to represent these data over a broad range of the state variables. Estimates for the accuracy of the equations and comparisons with measured properties are given. The reasons for this new study of methane include significant new and more accurate data, and improvements in the correlation functions which allow increased accuracy of the con.-elations especially in the extended critical region. For the thermodynamic properties, a classical equation for the molar Helmholtz energy, which contains terms multiplied by the exponential of the quadratic and quartic powers of the system density, is used. The resulting equation of state is accurate from about 91 to 600 K for pressures < 100 MPa and was developed by considering PVT, second virial coefficient, heat capacity, and sound speed data. Tables of coefficients and equations are presented to allow the calculation of these and other thermodynamic quantities. Ancillary equations for properties along the liquid-vapor phase boundary, which are consistent with the equation of state and lowest order scaling theory, are also given. For the viscosity of fluid methane, a low-density contribution based on theory is combined with an empirical representation of the excess contribution. The approximate range of the resulting correlation is 91 to 400 K for pressures < 55 MPa. The correlation for the thermal conductivity includes a theoretically based expression for the critical enhancement; the range for the resulting correlation is about 91 to 700 K for pressures below 100 MPa.

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The Compressibility Isotherms of Methane at Pressures to 1000 Atmospheres and at Temperatures From -70 to 200°

Cited by 86 publications

References 0 publications

Heterogeneous phase and volumetric behavior of the methane n‐heptane system at low temperatures

Heterogeneous phase and volumetric behavior of the methane n‐heptane system at low temperatures

Phase Equilibria in Hydrocarbon Systems II. Methane-Propane System

Thermophysical Properties of Methane

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