Hydrate Formation of CO₂-Rich Binary and Quaternary Gas Mixtures in Aqueous Sodium Chloride Solutions

Abstract

Hydrate formation data of CO2-rich mixtures, three binaries (CO2 + CH4, CO2 + C2H6 and CO2 + N2) and one quaternary (CO2 + CH4 + C2H6 + N2), in water and aqueous sodium chloride solutions were measured. The measurements were carried out in a transparent sapphire cell by applying an isothermal pressure search method in the temperature range 264 K to 284 K and the pressure range 0.5 MPa to 5.0 MPa.