Hydrogen component fugacities in binary mixtures with carbon dioxide: pressure dependence

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Int. J. Thermophys.; (United States)

DOI:https://doi.org/10.1007/BF00515203· OSTI ID:6645940

Bruno, T J

The fugacity coefficients of hydrogen in binary mixtures with carbon dioxide were measured isothermally using a physical equilibrium technique. This technique involves the use of an experimental chamber which is divided into two regions by a semipermeable membrane. Hydrogen can penetrate and pass through the membrane, while carbon dioxide cannot. During the approach to equilibrium, the pressure of pure hydrogen on one side of the membrane approaches the partial pressure of hydrogen in the mixture on the other side of the membrane. This allows a direct measurement of the hydrogen component fugacity at a given mixture mole fraction. In this study, results are reported for measurements made on the hydrogen + carbon dioxide binary at 130/sup 0/C (403 K), with total mixture pressure of 3.45, 5.17, 8.62, 10.34, and 13.79 MPa. General trends in the experimental results are discussed, and comparison are made with predictions from the Redlich-Kwong, Peng-Robinson, and extended corresponding-states models.

• Research Organization: National Bureau of Standards, Boulder, CO
• OSTI ID: 6645940
• Journal Information: Int. J. Thermophys.; (United States), Journal Name: Int. J. Thermophys.; (United States) Vol. 8:2; ISSN IJTHD
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACCURACY
BINARY MIXTURES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
DIFFUSION
DISPERSIONS
ELEMENTS
EQUATIONS
EQUATIONS OF STATE
HIGH PRESSURE
HYDROGEN
MEDIUM PRESSURE
MEMBRANES
MIXTURES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PARTIAL PRESSURE
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
PRESSURE MEASUREMENT
THERMODYNAMIC PROPERTIES