In Situ Measurement of Organic Contaminants in CO2-Water Solutions Using Near-Infrared Spectroscopy
EMSL Project ID
47639
Abstract
Geologic carbon sequestration (GCS) is considered to be one of the more viable options for reducing anthropogenic emissions of greenhouse gases. At sites where depleted oil reservoirs or coal beds are present, there is potential for mobilization of organic contaminants due to CO2 leakage from the storage formation. Migration of toxic compounds into overlying aquifers could impact groundwater resources. Consequently, data on the solubility and partitioning coefficients of organics between CO2, water, and reservoir sediments is needed to develop a better understanding of the fate of organic contaminants in CO2-leakage scenarios. In this research, in-situ near infrared spectroscopy will be used to measure the solubilities of target organic compounds in CO2 and the partitioning coefficients of these compounds between CO2, water, and rocks/sediments. The effects of pressure, temperature, and water contents on those parameters will be evaluated. The results of this research will support risk assessments for geologic CO2 sequestration in depleted oil reservoirs or coal beds and will ultimately assist in the design of more efficient and sustainable sequestration projects.
Project Details
Start Date
2012-09-19
End Date
2013-09-22
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members