Determination of Solubilities of CO2 in Brines Under Geological Storage Conditions

More and more attention is being paid to the sequestration of CO2. The proposed methods for CO2 sequestration include geological sequestration, ocean sequestration, mineral sequestration, and so on. Among them, saline aquifers in geological sequestration can store the largest amount of CO2, and is the most promising method. At present, the study of CO2 sequestration in saline aquifers remains at the stage of modeling prediction. Even though
numerous experimental data for the solubility of CO2 in CO2-H2O-NaCl system are available, data in certain P-T-x conditions are still lacking, especially in the saline systems containing additional Ca2+, Mg2+, and SO4 2- ions, and their effects on the large-scale injection of CO2 to saline aquifers. We plan to simulate the CO2 sequestration environments in saline aquifers, using our originally designed visual capillary device, in combination with in-situ Raman spectroscopy and/or microscopy technology, to study solubility of CO2 in brines (contains Na+, Ca2+,Mg2+,Cl-,SO4 2-) at relevant P-T conditions.

Faculty Supervisor:

Jesse Zhu

Student:

Anthony Pucci

Partner:

Discipline:

Engineering - chemical / biological

Sector:

University:

Western University

Program:

Globalink