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983 Aktuelle Fachpublikationen zum Thema temperature

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Ternary Liquid–Liquid Equilibrium Data for the Water + Acetonitrile + {Butan-1-ol or 2-Methylpropan-1-ol} Systems at (303.2, 323.2, 343.2) K and 1 atm

24.10.2014 | Caleb Narasigadu; Muven Naidoo; Deresh Ramjugernath, Journal of Chemical & Engineering Data, 2014

Ternary liquid–liquid equilibrium (LLE) data were measured and correlated for the water + acetonitrile + (butan-1-ol or 2-methylpropan-1-ol) systems at (303.2, 323.2, and 343.2) K and 1 atm. A double-walled glass cell with the direct analytical method was used to measure the liquid–liquid ...

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Measurement and Modeling of the Densities for CO2 + Dodecane System from 313.55 K to 353.55 K and Pressures up to 18 MPa

24.10.2014 | Yi Zhang; Zhaoyan Liu; Weiguo Liu; Jiafei Zhao; Mingjun Yang; Yu Liu; Dayong Wang; Yongchen Song, Journal of Chemical & Engineering Data, 2014

Densities of binary mixtures of CO2 and dodecane were measured by a magnetic suspension balance (MSB) at temperatures ranging from 313.55 K to 353.55 K under pressures from (8 to 18) MPa at five different CO2 mole fractions: x1 = 0, 0.2497, 0.5094, 0.7576, and 0.8610. Densities of the binary ...

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Experimental Measurement and Thermodynamic Modeling of Hydrate Dissociation Conditions for the Argon + TBAB + Water System

23.10.2014 | Saeedeh Babaee; Hamed Hashemi; Amir H. Mohammadi; Paramespri Naidoo; Deresh Ramjugernath, Journal of Chemical & Engineering Data, 2014

Gas hydrate (clathrate hydrate) dissociation data at low to moderate pressures are necessary for practical applications, e.g., for gas separation. However, it is often known or recognized that the separation conditions encountered exist at high pressures and low temperatures. One solution to this ...

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Phase Stability of Hydrates of Methane in Tetrahydrofuran Aqueous Solution and the Effect of Salt

23.10.2014 | Deepjyoti Mech; Jitendra S. Sangwai, Journal of Chemical & Engineering Data, 2014

Phase equilibrium data are generated for clathrate hydrates of methane in THF aqueous solution for (0.040, 0.016, 0.010, and 0.005) mass fraction and with NaCl ((0.03, 0.05, and 0.10) mass fraction) in combination with THF ((0.010 and 0.005) mass fraction) for the methane hydrate system to study ...

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Experimental Measurements and Thermodynamic Modeling of Clathrate Hydrate Dissociation Conditions for Refrigerants R116, R23, and Their Mixture R508B

22.10.2014 | Hamed Hashemi; Saeedeh Babaee; Paramespri Naidoo; Amir H. Mohammadi; Deresh Ramjugernath, Journal of Chemical & Engineering Data, 2014

Hydrate dissociation conditions for the refrigerants R116 (C2F6), R23 (CHF3), and their mixture R23/R116 (46:54 mass percent ratio) in the regions of hydrate–aqueous–vapor and hydrate–aqueous–liquid refrigerant equilibria were measured. The experimental measurements were performed within the ...

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Hydrate Dissociation Condition Measurement of CO2-Rich Mixed Gas in the Presence of Methanol/Ethylene Glycol and Mixed Methanol/Ethylene Glycol + Electrolyte Aqueous Solution

22.10.2014 | Qazi Nasir; K. K. Lau; Bhajan Lal; Khalik M. Sabil, Journal of Chemical & Engineering Data, 2014

In this work, the hydrate dissociation condition for carbon dioxide rich gas mixture in the presence of methanol, methanol + sodium chloride or calcium chloride, and ethylene glycol, ethylene glycol + sodium chloride or calcium chloride aqueous solution, were measured and reported. The ...

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Measurements of the Thermal Conductivity of Propane in the Supercritical Region

22.10.2014 | B. Le Neindre; Y. Garrabos; M. Nikravech, Journal of Chemical & Engineering Data, 2014

Measurements of the thermal conductivity of propane performed in a coaxial cylinder cell operating in steady state conditions are reported. The measurements of the thermal conductivity of propane were carried out along eight quasi-isotherms above the critical temperature. The present data cover ...

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Investigation of Ethane Hydrate Formation during Isobaric and Isothermal Conditions

21.10.2014 | M. Naseh; V. Mohebbi; R. M. Behbahani, Journal of Chemical & Engineering Data, 2014

In this work, we studied the mass transfer phenomenon of ethane during hydrate formation. Fifteen different tests were conducted over temperature range of (273.15 to 282.15) K and three levels of pressure at each temperature. A mass transfer approach has been consumed and was evaluated with ...

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Experimental Study on Feasibility of H2 and N2 as Hydrate Inhibitors in Natural Gas Pipelines

20.10.2014 | Emmanuel O. Obanijesu; Ahmed Barifcani; Vishnu K. Pareek; Moses O. Tade, Journal of Chemical & Engineering Data, 2014

This study applied the temperature search method to investigate the feasibility of pure H2 and N2 gases to inhibit hydrate formation along the subsea natural gas pipeline networks. Hydrates of different mix ratios from CH4 and CO2 were initially formed in a cryogenic sapphire cell to study the ...

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Dissociation Constants (pKa) of Tertiary and Cyclic Amines: Structural and Temperature Dependences

20.10.2014 | Aravind V. Rayer; Kazi Z. Sumon; Laila Jaffari; Amr Henni, Journal of Chemical & Engineering Data, 2014

The dissociation constants of the conjugate acids of 14 amines (diethylethanolamine, monoethanolamine, n-butyldiethanolamine, t-butyldiethanolamine, n,n-dimethylpropanolamine, methyl-diethanolamine, ethyldiethanolamine, monoethylethanolamine, n,n-dimethylisopropanolamine, triethanolamine, ...

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