STRONTIUM CARBONATE SOLUBILITY DATA IN AQUEOUS MIXTURES OF MONOETHYLENEGLYCOL UNDER A CARBON DIOXIDE ATMOSPHERE

• Main Authors: Deborah C. de Andrade, Naíra S. de A. Maniçoba, Rony O. Sant'ana, Fedra A.V. Ferreira, Camila S. Figueiredo, Jailton F. Nascimento, Leonardo S. Pereira, Osvaldo Chiavone-Filho
• Format: Article
• Language: English
• Published: Brazilian Society of Chemical Engineering
• Series: Brazilian Journal of Chemical Engineering
• Subjects: Strontium Carbonate; Salt Solubility; Monoethyleneglycol; Regeneration Process
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322018000200395&lng=en&tlng=en

Abstract In order to inhibit natural gas hydrate formation, monoethyleneglycol (MEG) is usually injected into producing well heads. The MEG regeneration process is continuously performed at the platform. Scaling problems usually occur due to the presence of chlorides and carbonates. This work presents salt solubility data for the aqueous system with strontium carbonate, MEG and carbon dioxide. A specific analytical method was developed. Thus, experimental data for strontium carbonate (SrCO3) solubility at various carbon dioxide pressures are reported. Solubilities of SrCO3 in water were measured from 760 to 1610 mmHg at 278.15. 288.15. 298.15 and 323.15 K. For the mixed solvent (ms) conditions, solubilities were measured at 298.15 K and four isobars, i.e., 760, 1210, 1410 and 1520 mmHg. Experimental data were correlated and demonstrated to be accurate for thermodynamic modeling and process simulation.