Excess molar volumes for CO sub 2 -CH sub 4 -N sub 2 mixtures
Abstract
Vibrating-tube densimetry experiments are being performed to determine the excess molar volumes of single-phase CO{sub 2}-CH{sub 4}-N{sub 2} gas mixtures at pressures as high as 3500 bars and temperatures up to 500{degrees}C. In our initial experiments, we determined the P-V-T properties of: (1) CO{sub 2}-CH{sub 4}, CO{sub 2}N{sub 2}, CH{sub 4}-N{sub 2}, and CO{sub 2}-CH{sub 4}-N{sub 2} mixtures at 1000 bars. 50 {degrees}C: and (2) CO{sub 2}-CH{sub 4} mixtures from 100 to 1000 bars at 100{degrees}C. Excess molar volumes in the binary subsystems are very accurately represented by two-parameter Margules equations. Experimentally determined excess molar volumes are in fair to poor agreement with predictions from published equations of state. Geometric projection techniques based on binary system data yield from published equations of state. Geometric projection techniques based on binary system data yield calculated excess molar volume for CO{sub 2}-CH{sub 4}-N{sub 2} mixtures that are in good agreement with our experimental data. 7 refs., 8 figs.
- Authors:
-
- Oak Ridge National Lab., TN (United States) Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Dept. of Geological Sciences
- Oak Ridge National Lab., TN (United States)
- Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Dept. of Geological Sciences
- Publication Date:
- Research Org.:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Org.:
- USDOE; National Science Foundation (NSF); USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
- OSTI Identifier:
- 5523911
- Report Number(s):
- CONF-920761-7
ON: DE92010886; CNN: EAR-8857778-03PYI
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Conference
- Resource Relation:
- Conference: 7. water-rock interaction conference, Park City, UT (United States), 9-23 Jul 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 58 GEOSCIENCES; BINARY MIXTURES; MATHEMATICAL MODELS; HOMOGENEOUS MIXTURES; THERMODYNAMIC PROPERTIES; CARBON DIOXIDE; DENSIMETERS; EQUATIONS OF STATE; GEOCHEMISTRY; METHANE; NITROGEN; PRESSURE DEPENDENCE; TEMPERATURE DEPENDENCE; VOLUME; ALKANES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMISTRY; DISPERSIONS; ELEMENTS; EQUATIONS; HYDROCARBONS; MEASURING INSTRUMENTS; MIXTURES; NONMETALS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; 400201* - Chemical & Physicochemical Properties; 580000 - Geosciences
Citation Formats
Seitz, J C, Blencoe, J G, Joyce, D B, and Bodnar, R J. Excess molar volumes for CO sub 2 -CH sub 4 -N sub 2 mixtures. United States: N. p., 1992.
Web.
Seitz, J C, Blencoe, J G, Joyce, D B, & Bodnar, R J. Excess molar volumes for CO sub 2 -CH sub 4 -N sub 2 mixtures. United States.
Seitz, J C, Blencoe, J G, Joyce, D B, and Bodnar, R J. 1992.
"Excess molar volumes for CO sub 2 -CH sub 4 -N sub 2 mixtures". United States.
@article{osti_5523911,
title = {Excess molar volumes for CO sub 2 -CH sub 4 -N sub 2 mixtures},
author = {Seitz, J C and Blencoe, J G and Joyce, D B and Bodnar, R J},
abstractNote = {Vibrating-tube densimetry experiments are being performed to determine the excess molar volumes of single-phase CO{sub 2}-CH{sub 4}-N{sub 2} gas mixtures at pressures as high as 3500 bars and temperatures up to 500{degrees}C. In our initial experiments, we determined the P-V-T properties of: (1) CO{sub 2}-CH{sub 4}, CO{sub 2}N{sub 2}, CH{sub 4}-N{sub 2}, and CO{sub 2}-CH{sub 4}-N{sub 2} mixtures at 1000 bars. 50 {degrees}C: and (2) CO{sub 2}-CH{sub 4} mixtures from 100 to 1000 bars at 100{degrees}C. Excess molar volumes in the binary subsystems are very accurately represented by two-parameter Margules equations. Experimentally determined excess molar volumes are in fair to poor agreement with predictions from published equations of state. Geometric projection techniques based on binary system data yield from published equations of state. Geometric projection techniques based on binary system data yield calculated excess molar volume for CO{sub 2}-CH{sub 4}-N{sub 2} mixtures that are in good agreement with our experimental data. 7 refs., 8 figs.},
doi = {},
url = {https://www.osti.gov/biblio/5523911},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}