The Compressibility of and an Equation of State for Gaseous Ethane

Beattie, James A.; Hadlock, Canfield; Poffenberger, Noland

doi:10.1063/1.1749614

Cited by 49 publications

(16 citation statements)

References 4 publications

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“…Ethane has been investigated by several groups of investigators (I, 2, 11, 13). Barkelew (1) evaluated the thermodynamic properties from the P-V-T data previously mentioned (2,11,13).…”

mentioning

confidence: 99%

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Multiphase and Volumetric Equilibria of the Ethane-Methanol System at Temperatures between -40° C. and 100° C.

Hua¹,

Kohn²

1964

J. Chem. Eng. Data

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“…Ethane has been investigated by several groups of investigators (I, 2, 11, 13). Barkelew (1) evaluated the thermodynamic properties from the P-V-T data previously mentioned (2,11,13).…”

mentioning

confidence: 99%

“…Young (15,16) presented vapor pressures, specific volumes, and critical constants of re-octane from -3°to 296°C. Felsing (2) reported the compressibility of liquid re-octane at temperatures from 100°to 275°C. at pressures to 300 atm.…”

mentioning

confidence: 99%

Multiphase and Volumetric Equilibria of the Ethane-Methanol System at Temperatures between -40° C. and 100° C.

Hua¹,

Kohn²

1964

J. Chem. Eng. Data

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“…Ethane was selected because its molecular structure is more complex than that of argon and also because it has a critical compressibility factor, zc = 0.285. 1 Present address: Union Carbide Nuclear Division Y-12 Plant, Oak Ridge, Tenn.…”

Section: Coefficient Of Thermal Expansionmentioning

confidence: 99%

Coefficient of Thermal Expansion. Reduced State Correlation Developed from Ethane P-V-T Data.

Hamrin¹,

Thodos²

1966

J. Chem. Eng. Data

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“…(1) CONSTANT C= OF MIXTURE , , , Ill,III Ml.III.. lllllllll 1 1 1 1 l 1 1 1 1 l I 1 1 1 1 1 1 1 1 1 II 1 1 Hill Hllllllll mil ml 11111 11111 i O uJ (2) TEMPERATURE, DEGREES FAHRENHEIT…”

Section: Combination Of Constants In Equation Of State For Mixturesmentioning

confidence: 99%

Prediction of Compressibility of Natural Gas Mixtures by Use of the Benedict-Webb-Rubin Equation of State.

Hsieh¹,

Zimmerman²

1958

Ind. Eng. Chem. Chem. Eng. Data Series

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ford and Phillips, a s was done by Herzog in his original article. Constants were a l s o derived for these equations using experimental parachors but no significant improvement in correlation w a s observed. Hence, it was decided to u s e the calculated parachors throughout since calculated parachors are normally more convenient to use.Equations with the re-evaluated constants are shown in Tables I, 11, and 111, together with their per cent "reliabilities." Reliabilities of t h e estimated T , values were calculated using the equation shown below. T h i s equation gives the maximum deviation to be expected in 95% of the cases.The same approach was used in determining the p c and V, equation reliabilities. d = 2 0 0 {-1 A knowledge of the pressure-volume-temperature properties of natural gas is of great importance in t h e transportation, storage, and u s e of the gas a s a fuel and a s a source of raw materials for chemical syntheses. Because of the variable composition of natural g a s and t h e time and skill required t o determine t h e P-V-T properties in the laboratory, i t h a s long been the goal of research engineers within the industry to find a n accurate method for their calculation. Heretofore, the methods proposed have been of limited application.The tentative standards a s s e t forth by the Natural Gasoline Association of America (25) and the California Natural Gasoline Association (9, 10) are either not of sufficient accuracy or are limited t o relatively low pressures. Following the pseudo-critical concept of Kay (13), and assuming the law of corresponding state valid for any natural gas mixture, Dunkle (12) proposed a method using pure methane a s the basis for evaluating the compressibility of natural g a s mixtures. Dunkle's approach was later used by Zimmerman and Beitler (16, 17). Their 'Present address, University of Bridgeport, Bridgeport, Conn. method i s simple and accurate for most natural gases,and h a s been adopted by the American G a s Association a s a new standard for the natural gas industry (1). However when the ethane and/or nitrogen and carbon dioxide contents are high, this method i s not so accurate a s i s generally desired.The present study was undertaken t o test the application of the Benedict-Webb-Rubin equation of state (4, 5) to the prediction of the compressibility of natural gas mixtures and particularly t o mixtures of high ethane and/or nitrogen and carbon dioxide content. The study was confined to the gaseous phase in the pressure and temperature ranges usually encountered in i t s transportation and storage. The data on natural g a s mixtures compiled' by Zimmetman and Beitler (16, 17j were used for purposes of comparison in the study. CONSTANTS FOR BENEDICT-WEBB-RUBIN EQUATION OF STATEBenedict, Webb, and Rubin ( 5 ) have proposed the following empirical equation for the representation of the P-V-T relations of a pure gas: T a b l e 1. Values of Constants in Benedict-Webb-Rubin Equation o f State for Compounds Constituting Natural Gas Mixtures Units. P = pounds...

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The Compressibility of and an Equation of State for Gaseous Ethane

Cited by 49 publications

References 4 publications

Multiphase and Volumetric Equilibria of the Ethane-Methanol System at Temperatures between -40° C. and 100° C.

Multiphase and Volumetric Equilibria of the Ethane-Methanol System at Temperatures between -40° C. and 100° C.

Coefficient of Thermal Expansion. Reduced State Correlation Developed from Ethane P-V-T Data.

Prediction of Compressibility of Natural Gas Mixtures by Use of the Benedict-Webb-Rubin Equation of State.

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