Methane: International Thermodynamic Tables of the Fluid State-5

Angus, S.; Armstrong, Barbara Nachtrieb; Reuck, K. M. de

doi:10.13182/nt81-a32767

Cited by 60 publications

(76 citation statements)

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“…Molar volumes for pure CO2 and N2 inclusions can be determined directly from T h by use of the compiled data on the two-phase regions of the single components systems by Angus et al (1973Angus et al ( , 1979. The molar volume of $2 inclusions, of which both Ths and composition have been measured, can be determined by simpleinterpolation in a molar volume-composition (VX) diagram: all CO 2 can be assumed to be in the solid state at Ths, and composition and molar volume of the inclusion must then plot on the tie line connecting the CO 2 and N 2 phases at Ths (Van den Kerkhof, 1988b).…”

Section: Molar Volume Determinationmentioning

confidence: 99%

Fluid inclusions in granulites and eclogites from the Bergen Arcs, Caledonides of W. Norway

1990

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The Grenvillian granulite-facies complex on Holsn0y island, Bergen Arcs, W. Norway, has been metamorphosed at eclogite-facies conditions during the Caledonian orogeny (ca. 425 Ma). The granulite-eclogite facies transition takes place along shear zones and fluid pathways. Mineral thermobarometry indicates PT conditions of 800-900~ and 8-10kbar for the Proterozoic granulite facies metamorphism and 700-800 ~ and 16-19 kbar for the eclogite-forming event. Quartz in the granulite facies complex contains CO 2 fluid inclusions with less than 2.5 mole percent N2; the molar volumes are compatible with the PT conditions of the Proterozoic granulite metamorphism. Quartz in pegmatitic quartz + omphacite and quartz + phengite/paragonite veins coeval with shear-zone eclogites contain N2 + CO2 fluid inclusions. Combined laser Raman microanalysis and microthermometry show that the least disturbed inclusions have )(co 2 ---0.1-0.3, and molar volumes less than 40 cm3/mole, which may agree with the PT conditions during Caledonian high-pressure metamorphism. Younger, lowdensity N 2 and N2-H20 fluid inclusions are the results of decrepitation and redistribution of early inclusions during the retrograde PT evolution of the eclogites.

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Section: Molar Volume Determinationmentioning

confidence: 99%

Fluid inclusions in granulites and eclogites from the Bergen Arcs, Caledonides of W. Norway

1990

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“…We have used the IUPAC tables (Angus et al, 1973) for CO 2 and Goodwin (1983) for H 2 S. The amount of solvent n s is exactly known by weighing and the volume of the equilibrium cell V is carefully calibrated.…”

Section: Treatment and Resultsmentioning

confidence: 99%

Absorption of H₂S and CO₂in Alkanolamine Aqueous Solution: Experimental Data and Modelling with the Electrolyte-NRTL Model

Barreau¹,

Bouhelec²,

Tounsi³

et al. 2006

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Absorption de H 2 S et CO 2 dans des solutions aqueuses d'alcanolamine : mesures expérimentales et modélisation avec le modèle NRTL-Electrolyte-Au cours de ce travail, nous nous sommes intéressés à l'absorption de gaz acides (H 2 S et CO 2 ) dans des solutions aqueuses d'alcanolamine. La première partie de cet article présente l'appareillage expérimental développé pour déterminer la pression partielle en gaz acide en fonction du taux de charge (en phase liquide) en utilisant la méthode synthétique. De nouvelles mesures sur les systèmes Eau + diéthanolamine + CO 2 et Eau + diéthanolamine + H 2 S ont été réalisées. La deuxième partie s'intéresse à la modélisation de telles données. Le modèle utilisé couple l'aspect réactions chimiques en phase liquide avec l'aspect équilibre de phases. Nous avons mis en oeuvre le modèle NRTL-Electrolyte pour décrire la phase liquide et l'équation d'état de Peng et Robinson pour décrire la phase vapeur. Les paramètres du modèle NRTLElectrolyte sont déterminés sur les données expérimentales de pression partielle en gaz acide des systèmes étudiés. Abstract -Absorption of H 2 S and CO 2 in Alkanolamine Aqueous Solution: Experimental Data andModelling with the Electrolyte-NRTL Model -In this work, we are interested in acid gas (H 2 S and CO 2 ) removal by aqueous solutions of alkanolamine. The first part of the article deals with the development of the experimental apparatus used to determine the partial acid gas pressure as a function of acid gas loading in the reactive liquid phase with the synthetic method. New measurements on water + diethanolamine + CO 2 and water + diethanolamine + H 2 S systems were performed. The second part concerns the modelling of such data. The model used couples the chemical reactions in liquid phase with the phase equilibrium. We use the electrolyte NRTL model for the liquid phase and the Peng and Robinson equation of state to describe the vapour phase. The parameters of the electrolyte NRTL model are determined on experimental acid gas partial pressure data of the studied systems.Petroleum Industry Applications of Thermodynamics Applications de la thermodynamique dans l'industrie pétrolière

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“…The CO 2 input was monitored at the pump by observing the volume that entered the cell at a constant pressure. The density of the CO 2 at the given conditions was calculated using an equation of state obtained from the International Thermodynamic Tables of the Fluid State (61) and integrated by Newton's method. After closing the CO 2 feed, the pressure in the vessel was raised by adding oil with a high pressure syringe pump until the polymer dissolves in the carbon dioxide [up to a maximum of 7000 psi (48.26 MPa)].…”

Section: Phase Behavior Determinationmentioning

confidence: 99%

Inexpensive CO2 Thickening Agents for Improved Mobility Control of CO2 Floods

Enick¹,

Beckman²,

Hamilton³

2005

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The objective of this research was the design, synthesis and evaluation of inexpensive, nonfluorous carbon dioxide thickening agents. We followed the same strategy employed in the design of fluorinated CO 2 polymeric thickeners. First, a highly CO 2 -philic, hydrocarbon-based monomer was to be identified. Polymers or oligomers of this monomer were then synthesized. The second step was to design a CO 2 -thickener based on these CO 2 -philic polymers. Two types of thickeners were considered. The first was a copolymer in which the CO 2 -philic monomer was combined with a small proportion of CO 2 -phobic associating groups that could cause viscosityenhancing intermolecular interactions to occur. The second was a small hydrogen-bonding compound with urea groups in the core to promote intermolecular interactions that would cause the molecules to "stack" in solution while the arms were composed of the CO 2 -philic oligomers. Although we were not able to develop a viable thickener that exhibited high enough CO 2 solubility at EOR MMP conditions to induce a viscosity increase, we made significant progress in our understanding of CO 2 -soluble compounds that can be used in subsequent studies to design CO 2 -soluble thickeners or CO 2 -soluble surfactant-based foaming agents. These findings are detailed in this final report.In summary, we assessed many polymers and verified that the most CO 2 -soluble oxygenated hydrocarbon polymer is poly(vinyl acetate), PVAc. This is primarily due to the presence of both ether and carbonyl oxygens associated with acetate-rich compounds. In addition to polymers, we also made small acetate-rich molecules that were also capable of associating in solution via the inclusion of hydrogen-bonding groups in hopes of forming viscosity-enhancing macromolecules. Despite the presence of multiple acetate groups in these compounds, which can impart incredible CO 2 -solubility to many compounds, our attempts to make acetate-rich high molecular weight polymers and small hydrogen-bonding compounds did not yield a highly CO 2 -soluble polymer or hydrogen-bonding associative thickener. The conclusions of our molecular modeling calculations confirmed that although acetates are indeed "CO 2 -philic", nitrogen-containing amines also interact favorably with CO 2 and should also be examined. Therefore we obtained and synthesized many N-rich (e.g. amine-containing) polymers. Unfortunately, we found that the intermolecular polymer-polymer interactions between the amines were so strong that the polymers were essentially insoluble in CO 2 . For the convenience of the reader, a table of all of the polymers evaluated during this research is provided. Executive SummaryThe objective of this research was the design, synthesis and evaluation of inexpensive, nonfluorous carbon dioxide thickening agents. We followed the same strategy employed in the design of fluorinated CO 2 polymeric thickeners. First, a highly CO 2 -philic, hydrocarbon-based monomer was to be identified. Polymers or oligomers of this monomer wer...

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Methane: International Thermodynamic Tables of the Fluid State-5

Cited by 60 publications

References 0 publications

Fluid inclusions in granulites and eclogites from the Bergen Arcs, Caledonides of W. Norway

Fluid inclusions in granulites and eclogites from the Bergen Arcs, Caledonides of W. Norway

Absorption of H₂S and CO₂in Alkanolamine Aqueous Solution: Experimental Data and Modelling with the Electrolyte-NRTL Model

Inexpensive CO2 Thickening Agents for Improved Mobility Control of CO2 Floods

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Methane: International Thermodynamic Tables of the Fluid State-5

Cited by 60 publications

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Fluid inclusions in granulites and eclogites from the Bergen Arcs, Caledonides of W. Norway

Fluid inclusions in granulites and eclogites from the Bergen Arcs, Caledonides of W. Norway

Absorption of H2S and CO2in Alkanolamine Aqueous Solution: Experimental Data and Modelling with the Electrolyte-NRTL Model

Inexpensive CO2 Thickening Agents for Improved Mobility Control of CO2 Floods

Contact Info

Product

Resources

About

Absorption of H₂S and CO₂in Alkanolamine Aqueous Solution: Experimental Data and Modelling with the Electrolyte-NRTL Model