High-pressure fluid-phase equilibria: Experimental methods and systems investigated (1988–1993)

The recent literature is surveyed to explore the nature of voltammetry in room temperature ionic liquids. The extent of similarities with conventional electrochemical solvents is reported and some surprising differences are noted.

Voltammetry in Room Temperature Ionic Liquids: Comparisons and Contrasts with Conventional Electrochemical Solvents

High-pressure fluid-phase equilibria: Experimental methods and systems investigated (2000-2004)

High-pressure fluid phase equilibria

Online NMR spectroscopic study of species distribution in MEA-H2O-CO2 and DEA-H2O-CO2

Experimental results for the solubility of the single gases carbon dioxide and hydrogen sulfide in aqueous solutions of 2,2‘-methyliminodiethanol (N-methyldiethanolamine (MDEA)) at temperatures between 313 and 413 K and total pressures up to 5 MPa are reported. A model taking into account chemical reactions as well as physical interactions is used to correlate the new data. The correlation is also used to compare the new experimental data with literature data.

Solubility of single gases carbon dioxide and hydrogen sulfide in aqueous solutions of N-methyldiethanolamine in the temperature range 313--413 K at pressures up to 5 MPa

The solubility of hydrogen sulfide in aqueous solutions of N-methyldiethanolamine (MDEA) and MDEA sulfate (2 and 1 m, respectively) and in aqueous solutions of MDEA and sodium sulfate (2 and 1 m, respectively) was measured at temperatures from 313 to 393 K and total pressures up to about 3.9 MPa. The experimental results are used to extend and test a model for the thermodynamic equilibrium encountered in the solubility of hydrogen sulfide in such aqueous solutions.

Solubility of H2S in H2O + N-methyldiethanolamine + (H2SO4 or Na2SO4)

This contribution reports on the solubility of a single weak acid gas (carbon dioxide and hydrogen sulfide) in aqueous solutions containing a single strong electrolyte (acetic acid, sodium acetate or ammonium acetate). New experimental results are correlated with a modified Pitzer model for the Gibbs excess energy of aqueous electrolyte solutions.

Bernd Rumpf

Papers

Solubility of single gases carbon dioxide and hydrogen sulfide in aqueous solutions of N-methyldiethanolamine in the temperature range 313--413 K at pressures up to 5 MPa

Solubility of H2S in H2O + N-methyldiethanolamine + (H2SO4 or Na2SO4)

On the Solubility of Sour Gases in Aqueous Electrolyte Solutions: New Experimental Data and Correlation