Trace elements contained in coal-derived flue gas can accumulate in solvents used in post-combustion CO2 capture with potential process and environmental impacts. The accumulation of six metals, arsenic, mercury, selenium, iron, nickel, and copper in three amine-based solvents was investigated in a 0.1MWth post-combustion CO2 capture pilot unit from the combustion of coal for testing periods of 200-400h. Generally, the concentration of the metals increased over time at varying rates, with the coal used being the principal source for the build-up of most of them. The relatively lower concentrations of iron, nickel, and copper in one of the solvents showed that the type of solvent influenced its interaction with the metals and the rate of metals accumulation.
|Number of pages||7|
|Journal||International Journal of Greenhouse Gas Control|
|State||Published - Nov 1 2015|
Bibliographical noteFunding Information:
This work was supported with funding by members of the Carbon Management Research Group: American Electric Power (AEP) , Duke Energy , East Kentucky Power Cooperative (EKPC) , Electric Power Research Institute (EPRI) , Kentucky Department of Energy Development and Independence (KY DEDI) , and LG&E and KU Energy .
© 2015 Elsevier Ltd.
- Amine solvents
- CO capture
- Flue gas
- Heavy metals
- Trace elements
ASJC Scopus subject areas
- Energy (all)
- Management, Monitoring, Policy and Law
- Industrial and Manufacturing Engineering