Second virial coefficients for chain molecules

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00025a019· OSTI ID:5451778

Bokis, C P; Donohue, M D ^[1]; Hall, C K ^[2]

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1. Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Chemical Engineering
2. North Carolina State Univ., Raleigh, NC (United States). Dept. of Chemical Engineering

The importance of having accurate second virial coefficients in phase equilibrium calculations, especially for the calculation of dew points, is discussed. The square-well potentials results in a simple but inaccurate equation for the second virial coefficient for small, spherical molecules such as argon. Here, the authors present a new equation for the second virial coefficient of both spherical molecules and chain molecules which is written in a form similar to that for the square-well potential. This new equation is accurate in comparison to Monte Carlo simulation data on second virial coefficients for square-well chain molecules and with second virial coefficients obtained from experiments on n-alkanes.

• DOE Contract Number: FG02-87ER13777
• OSTI ID: 5451778
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 33:1; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
03 NATURAL GAS
033000* -- Natural Gas-- Properties & Composition
ALKANES
DATA
DISPERSIONS
ENERGY SOURCES
EQUATIONS
EQUATIONS OF STATE
EXPERIMENTAL DATA
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HEPTANE
HYDROCARBONS
INFORMATION
METHANE
MIXTURES
NATURAL GAS
NUMERICAL DATA
ORGANIC COMPOUNDS
PETROLEUM
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES