The vapor‐liquid equilibrium of the hydrogen—n‐butane system at elevated pressures | Zendy

Klink A. E. | Zendy; Cheh H. Y. | Zendy; Amick E. H. | Zendy

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The vapor‐liquid equilibrium of the hydrogen—n‐butane system at elevated pressures

Author(s) -

Klink A. E.,

Cheh H. Y.,

Amick E. H.

Publication year - 1975

Publication title -

aiche journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.958

H-Index - 167

eISSN - 1547-5905

pISSN - 0001-1541

DOI - 10.1002/aic.690210614

Subject(s) - butane , fugacity , chemistry , hydrogen , thermodynamics , vapor–liquid equilibrium , equilibrium constant , phase (matter) , chromatography , organic chemistry , catalysis , physics

The vapor‐liquid equilibrium of the hydrogen– n –butane system was studied at temperatures between 54° and 121°C and at pressures up to 167 atm. The fugacity of hydrogen in the vapor phase was measured directly by using a palladium‐silver semipermeable membrane, whereas p‐T‐x‐y data were obtained in a conventional manner. Henry's constants for hydrogen in n ‐butane were obtained from the experimental fugacity data without making any assumptions about the vapor phase. Constant‐pressure, liquid‐phase activity coefficients for both hydrogen and n ‐butane were calculated and correlated by using a modified van Laar equation.

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