Trace metals accumulation in a coal-fired post combustion CO2 capture process with amine-based solvents

Heather Nikolic; Reynolds A. Frimpong; Kunlei Liu

doi:10.1016/j.ijggc.2015.07.031

Trace metals accumulation in a coal-fired post combustion CO₂ capture process with amine-based solvents

Heather Nikolic, Reynolds A. Frimpong, Kunlei Liu

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	59-65
Number of pages	7
Journal	International Journal of Greenhouse Gas Control
Volume	42
DOIs	https://doi.org/10.1016/j.ijggc.2015.07.031
State	Published - Nov 1 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

Funding

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 .

Funders	Funder number
East Kentucky Power Cooperative
KU Energy LLC
Kentucky Department for Energy Development and Independence
Duke Energy
Electric Power Research Institute, Louisville Gas & Electric
American Electric Power

Keywords

Amine solvents
CO capture
Flue gas
Heavy metals
Trace elements

ASJC Scopus subject areas

Pollution
General Energy
Management, Monitoring, Policy and Law
Industrial and Manufacturing Engineering

Access to Document

10.1016/j.ijggc.2015.07.031

Cite this

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title = "Trace metals accumulation in a coal-fired post combustion CO2 capture process with amine-based solvents",

abstract = "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.",

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N2 - 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.

AB - 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.

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