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Vapor‐liquid equilibria in the methane‐ethylene‐ethane system
Author(s) -
Hsi Chu,
Lu Benjamin C.Y.
Publication year - 1971
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450490125
Subject(s) - methane , ethylene , ternary operation , equation of state , thermodynamics , chemistry , ternary numeral system , binary system , binary number , hydrocarbon , organic chemistry , physics , catalysis , mathematics , arithmetic , computer science , programming language , phase (matter)
Vapor‐liquid equilibrium compositions were measured for the methane‐ethylene binary at — 156.1°, — 173.1° and — 193.1° F, the methane‐ethane binary at — 173‐1° F, and the methane‐ethylene‐ethane ternary at — 173.1° F and at pressure up to 330 p.s.i.a. A forced recirculation apparatus was employed for the determinations. Liquid activity coefficients, γ, were evaluated by means of a modified Redlich‐Kwong equation of state incorporating with binary interaction constant and correlated by the Redlich‐Kister equation. Equilibrium data for the ethylene‐ethane binary system at — 173° F were predicted by the modified Redlich‐Kwong equation of state for correlating the γ values of the methane‐ethylene‐ethane ternary system.