175 results found
Li X, Peng C, Crawshaw JP, et al., 2018, The pH of CO<inf>2</inf>-saturated aqueous NaCl and NaHCO<inf>3</inf>solutions at temperatures between 308 K and 373 K at pressures up to 15 MPa, Fluid Phase Equilibria, Vol: 458, Pages: 253-263, ISSN: 0378-3812
© 2017 Elsevier B.V. The pH is a critical variable for carbon storage in saline aquifers because it affects the reaction rate and equilibrium state of the reservoir rocks, thus influencing the rates of mineral dissolution or precipitation and the integrity of caprocks. In this work, high-pressure pH and Ag/AgCl-reference electrodes were used to measure the pH of CO 2 -saturated aqueous solutions of NaCl and NaHCO 3 . The expanded uncertainty of the pH measurements is 0.20 at 95% probability. For CO 2 -saturated NaCl(aq), measurements were carried out at total pressures from (0.37 to 15.3) MPa and temperatures from (308 to 373) K with NaCl molalities of (1, 3 and 5) mol·kg −1 . For CO 2 -saturated NaHCO 3 (aq), the pH was measured at total pressures from (0.2 to 15.3) MPa and temperatures from (308 to 353) K with NaHCO 3 molalities of (0.01, 0.1 and 1) mol·kg −1 . The pH was found to decrease with increase in pressure and with decrease in temperature for both CO 2 -saturated NaCl and NaHCO 3 solutions. For CO 2 -saturated NaCl(aq), the pH was observed to decrease with increase of salt molality, while for CO 2 -saturated NaHCO 3 , the opposite behaviour was observed. The results have been compared with predictions obtained from the PHREEQC geochemical simulator (version 3.3.9) incorporating the Pitzer activity-coefficient model with parameters taken from the literature. For CO 2 -saturated NaCl(aq), agreement to within ±0.2 pH units was observed in most cases, although deviations of up to 0.3 were found at the highest molality. In the case of CO 2 -saturated NaHCO 3 (aq), the experimental data were found to deviate increasingly from the model with increasing salt molality and, at 1 mol·kg −1 , the model underestimated the pH by between 0.3 and 0.7 units.
Al Ghafri SZS, Maitland GC, Trusler JPM, 2017, Phase Behavior of the System (Carbon Dioxide plus n-Heptane plus Methylbenzene): A Comparison between Experimental Data and SAFT-gamma-Mie Predictions, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 62, Pages: 2826-2836, ISSN: 0021-9568
Hu R, Crawshaw JP, Trusler JPM, et al., 2017, Rheology and Phase Behavior of Carbon Dioxide and Crude Oil Mixtures, ENERGY & FUELS, Vol: 31, Pages: 5776-5784, ISSN: 0887-0624
Hu R, Trusler JPM, Crawshaw JP, 2017, Effect of CO2 Dissolution on the Rheology of a Heavy Oil/Water Emulsion, 17th International Conference on Petroleum Phase Behavior and Fouling (PetroPhase), Publisher: AMER CHEMICAL SOC, Pages: 3399-3408, ISSN: 0887-0624
Mohammed M, Ciotta F, Trusler JPM, 2017, Viscosities and Densities of Binary Mixtures of Hexadecane with Dissolved Methane or Carbon Dioxide at Temperatures from (298 to 473) K and at Pressures up to 120 MPa, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 62, Pages: 422-439, ISSN: 0021-9568
Patzschke CF, Zhang J, Fennell PS, et al., 2017, Density and Viscosity of Partially Carbonated Aqueous Solutions Containing a Tertiary Alkanolamine and Piperazine at Temperatures between 298.15 and 353.15 K, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 62, Pages: 2075-2083, ISSN: 0021-9568
Trusler JPM, 2017, Thermophysical Properties and Phase Behavior of Fluids for Application in Carbon Capture and Storage Processes, ANNUAL REVIEW OF CHEMICAL AND BIOMOLECULAR ENGINEERING, VOL 8, Vol: 8, Pages: 381-402, ISSN: 1947-5438
Trusler JPM, Lemmon EW, 2017, Determination of the thermodynamic properties of water from the speed of sound, JOURNAL OF CHEMICAL THERMODYNAMICS, Vol: 109, Pages: 61-70, ISSN: 0021-9614
Cadogan SP, Mistry B, Wong Y, et al., 2016, Diffusion Coefficients of Carbon Dioxide in Eight Hydrocarbon Liquids at Temperatures between (298.15 and 423.15) K at Pressures up to 69 MPa, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 61, Pages: 3922-3932, ISSN: 0021-9568
Chow YTF, Eriksen DK, Galindo A, et al., 2016, Interfacial tensions of systems comprising water, carbon dioxide and diluent gases at high pressures: Experimental measurements and modelling with SAFT-VR Mie and square-gradient theory, FLUID PHASE EQUILIBRIA, Vol: 407, Pages: 159-176, ISSN: 0378-3812
Chow YTF, Maitland GC, Trusler JPM, 2016, Interfacial tensions of the (CO2 + N-2 + H2O) system at temperatures of (298 to 448) K and pressures up to 40 MPa, JOURNAL OF CHEMICAL THERMODYNAMICS, Vol: 93, Pages: 392-403, ISSN: 0021-9614
Efika EC, Hoballah R, Li X, et al., 2016, Saturated phase densities of (CO2 + H2O) at temperatures from (293 to 450) K and pressures up to 64 MPa, JOURNAL OF CHEMICAL THERMODYNAMICS, Vol: 93, Pages: 347-359, ISSN: 0021-9614
Moultos OA, Tsimpanogiannis IN, Panagiotopoulos AZ, et al., 2016, Atomistic Molecular Dynamics Simulations of Carbon Dioxide Diffusivity in n-Hexane, n-Decane, n-Hexadecane, Cyclohexane, and Squalane, JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 120, Pages: 12890-12900, ISSN: 1520-6106
Peng C, Anabaraonye BU, Crawshaw JP, et al., 2016, Kinetics of carbonate mineral dissolution in CO2-acidified brines at storage reservoir conditions, FARADAY DISCUSSIONS, Vol: 192, Pages: 545-560, ISSN: 1359-6640
Schmidt KAG, Pagnutti D, Curran MD, et al., 2016, New Experimental Data and Reference Models for the Viscosity and Density of Squalane (vol 60, pg 137, 2015), JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 61, Pages: 698-698, ISSN: 0021-9568
Trusler JPM, 2016, Introduction to the Special Issue on carbon storage, JOURNAL OF CHEMICAL THERMODYNAMICS, Vol: 93, Pages: 273-273, ISSN: 0021-9614
Al Ghafri SZ, Efika EC, Trusler JPM, 2015, A new high-pressure high-temperature apparatus for phase behaviour measurements on multicomponent mixtures, Pages: 1012-1014
Al Ghafri SZS, Forte E, Galindo A, et al., 2015, Experimental and Modeling Study of the Phase Behavior of (Heptane plus Carbon Dioxide plus Water) Mixtures, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 60, Pages: 3670-3681, ISSN: 0021-9568
Cadogan S, Maitland GC, Mistry B, et al., 2015, Diffusion coefficients of carbon dioxide in liquid hydrocarbons at high pressures: Experiment and modeling, Pages: 69-75
Cadogan S, Maitland GC, Mistry B, et al., 2015, Diffusion coefficients of carbon dioxide in liquid hydrocarbons at high pressures: Experiment and modeling, Pages: 144-150
In this work we have: • Obtained new experimental data for CO 2 diffusion in normal alkanes from C 6 to C 16 and in squalane (C 30 H 62 ) • Developed a universal correlation for the n-alkane systems in terms of temperature, solvent molar volume and carbon number • Squalane data suggests that the correlation should become nonlinear at high densities.
Cadogan SP, Hallett JP, Maidand GC, et al., 2015, Diffusion Coefficients of Carbon Dioxide in Brines Measured Using C-13 Pulsed-Field Gradient Nuclear Magnetic Resonance, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 60, Pages: 181-184, ISSN: 0021-9568
Fandino O, Trusler JPM, Vega-Maza D, 2015, Phase behavior of (CO2 + H-2) and (CO2+ N-2) at temperatures between (218.15 and 303.15)K at pressures up to 15 MPa, INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, Vol: 36, Pages: 78-92, ISSN: 1750-5836
Hou S-X, Maitland GC, Trusler JPM, 2015, Phase equilibria of (CO2 + butylbenzene) and (CO2 + butylcyclohexane) at temperatures between (323.15 and 423.15) K and at pressures up to 21 MPa, FLUID PHASE EQUILIBRIA, Vol: 387, Pages: 111-116, ISSN: 0378-3812
Hu R, Crawshaw JP, Trusler JPM, et al., 2015, Rheology of Diluted Heavy Crude Oil Saturated with Carbon Dioxide, ENERGY & FUELS, Vol: 29, Pages: 2785-2789, ISSN: 0887-0624
Liu Z, Trusler JPM, Bi Q, 2015, Viscosities of Liquid Cyclohexane and Decane at Temperatures between (303 and 598) K and Pressures up to 4 MPa Measured in a Dual-Capillary Viscometer, Journal of Chemical and Engineering Data, Vol: 60, Pages: 2363-2370, ISSN: 1520-5134
The viscosities of cyclohexane and decane arereported at temperatures between (303.15 and 598.15) K and atpressures of (0.1, 1, 2, 3 and 4) MPa. The experiments were carriedout with a dual-capillary viscometer that measures the ratio of theviscosities at temperature T and pressure p to that at a referencetemperature of 298.15 K and the same pressure. Absolute values ofthe viscosity were then obtained with an expanded relativeuncertainties at 95 % confidence of 3.0 % by combining themeasured ratios with literature values of the viscosity at the referencetemperature.
May EF, Tay WJ, Nania M, et al., 2015, Physical apparatus parameters and model for vibrating tube densimeters at pressures to 140 MPa and temperatures to 473 K (vol 85, 095111, 2014), REVIEW OF SCIENTIFIC INSTRUMENTS, Vol: 86, ISSN: 0034-6748
McBride-Wright M, Maitland GC, Trusler JPM, 2015, Viscosity and Density of Aqueous Solutions of Carbon Dioxide at Temperatures from (274 to 449) K and at Pressures up to 100 MPa, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 60, Pages: 171-180, ISSN: 0021-9568
Peng C, Crawshaw JP, Maitland GC, et al., 2015, Kinetics of calcite dissolution in CO2-saturated water at temperatures between (323 and 373) K and pressures up to 13.8 MPa, Chemical Geology, Vol: 403, Pages: 74-85, ISSN: 1872-6836
We report measurements of the calcite dissolution rate in CO2-saturated water at pressures ranging from (6.0 to 13.8) MPa and temperatures from (323 to 373) K. The rate of calcite dissolution in HCl(aq) at temperatures from (298 to 353) K was also measured at ambient pressure with pH between 2.0 and 3.3. A specially-designed batch reactor system, implementing a rotating disc technique, was used to obtain the dissolution rate at the solid/liquid interface of a single crystal, free of mass transfer effects. We used vertical scanning interferometry to examine the texture of the calcite surface produced by the experiment and the results suggested that at far-from-equilibrium conditions, the measured calcite dissolution rate was independent of the initial defect density due to the development of a dynamic dissolution pattern which became steady-state shortly after the onset of dissolution. The results of this study indicate that the calcite dissolution rate under surface-reaction-controlled conditions increases with the increase of temperature from (323 to 373) K and CO2 partial pressure from (6.0 to 13.8) MPa. Fitting the conventional first order transition state kinetic model to the observed rate suggested that, although sufficient to describe calcite dissolution in CO2-free HCl(aq), this model clearly underestimate the calcite dissolution rate in the (CO2 + H2O) system over the range of conditions studied. A kinetic model incorporating both pH and the activity of CO2(aq) has been developed to represent the dissolution rates found in this study. We report correlations for the corresponding reaction rate coefficients based on the Arrhenius equation and compare the apparent activation energies with values from the literature. The results of this study should facilitate more rigorous modelling of mineral dissolution in deep saline aquifers used for CO2 storage.
Schmidt KAG, Pagnutti D, Curran MD, et al., 2015, New Experimental Data and Reference Models for the Viscosity and Density of Squalane, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 60, Pages: 137-150, ISSN: 0021-9568
Schmidt KAG, Pagnutti D, Trusler JPM, 2015, Reply to "Comment on 'New Experimental Data and Reference Models for the Viscosity and Density of Squalane", JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 60, Pages: 1213-1214, ISSN: 0021-9568
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