Simple equation of state accurately predicts hydrocarbon densities

Journal Article · Mon Jul 12 00:00:00 EDT 1993 · Oil and Gas Journal; (United States)

OSTI ID:5452074

Riazi, M R; Mansoori, G A ^[1]

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1. Univ. of Illinois, Chicago, IL (United States)

A simple, cubic equation of state (EOS) for hydrocarbon systems accurately predicts densities of a variety of hydrocarbons ranging from C[sub 1] to C[sub 40]. The equation is simpler than typical industrial equations of state currently used. It produces an average error of 1.3% for density predictions of pure C[sub 1]-C[sub 40] hydrocarbons and 1.7% for hydrocarbon mixtures (C[sub 1]-C[sub 40]) at pressures as high as 700 bar and temperatures of 1,000 K or less. The paper discusses the usefulness of the equation, its development, its application to mixtures, and its accuracy.

• OSTI ID: 5452074
• Journal Information: Oil and Gas Journal; (United States), Vol. 91:28; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
ALKANES
DENSITY
EQUATIONS OF STATE
COMPRESSIBILITY
METHANE
MOLECULAR WEIGHT
PETROLEUM
REFRACTIVE INDEX
VAPOR PRESSURE
ENERGY SOURCES
EQUATIONS
FOSSIL FUELS
FUELS
HYDROCARBONS
MECHANICAL PROPERTIES
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
023000* - Petroleum- Properties & Composition
033000 - Natural Gas- Properties & Composition