Measurement of CO2 Solubility in NaCl Brine Solutions at Different Temperatures and Pressures Using the Potentiometric Titration Method

摘要: The solubility of CO2 in brine is one the trapping mechanisms by which sequestrated aquifers. In this research, an unconventional method, called potentiometric titration, was used to obtain distilled water and NaCl brine. data for low salinity range are scarce literature. Thus, obtained brines (0–15 000 ppm) at temperatures between 60 °C 100 pressures up 25 MPa. Moreover, salting-out effect estimated using Setchenov’s constant as a measure reduction when salt added solution. points titration method demonstrated very good consistency with those previous methods.