Pilot testing of a heat integrated 0.7 MWe CO2 capture system with two-stage air-stripping: Amine degradation and metal accumulation

Jesse G. Thompson; Saloni Bhatnagar; Megan Combs; Keemia Abad; Femke Onneweer; Jonathan Pelgen; David Link; Jose Figueroa; Heather Nikolic; Kunlei Liu

doi:10.1016/j.ijggc.2017.07.004

Pilot testing of a heat integrated 0.7 MWe CO₂ capture system with two-stage air-stripping: Amine degradation and metal accumulation

Jesse G. Thompson, Saloni Bhatnagar, Megan Combs, Keemia Abad, Femke Onneweer, Jonathan Pelgen, David Link, Jose Figueroa, Heather Nikolic, Kunlei Liu

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

25 Scopus citations

Abstract

An advanced 0.7 MWe small pilot coal-fired post-combustion CO₂ capture system with heat integration combined with two-stage stripping was tested on a slipstream of flue gas by the University of Kentucky Center for Applied Energy Research (UKy-CAER). Evaluation of solvent degradation products was performed to determine the impact of oxygen exposure due to incorporation of the secondary air stripper into the conventional amine absorber/stripper system. The overall degradation rates and products observed during the testing campaign were comparable to previously published reports using 30% monoethanolamine (MEA) as the baseline/commissioning solvent. The rates of heat stable salt accumulation and amine degradation were similar to those from conventional CO₂ capture systems using MEA. Metal accumulation as the result of material corrosion inside the system from an improperly constructed material was observed. The impact of the secondary air stripper appears negligible relative to other published MEA campaigns tested at similar flue gas conditions and system operating hours.

Original language	English
Pages (from-to)	23-33
Number of pages	11
Journal	International Journal of Greenhouse Gas Control
Volume	64
DOIs	https://doi.org/10.1016/j.ijggc.2017.07.004
State	Published - 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Funding

The authors would like to acknowledge the Department of Energy National Energy Technology Laboratory (NETL) for the primary financial support of this project (DE-FE0007395). Additional financial support was provided by Louisville Gas & Electric (LG&E) and Kentucky Utilities (KU) , Duke Energy , Electric Power Research Institute (EPRI) , Kentucky Power , and the Kentucky Department of Energy Development and Independence (KY-DEDI) . The authors would like to thank the UKy-CAER pilot operations staff including Len Goodpaster, Otto Hoffmann, Marshall Marcum, Andy Placido and Amanda Warriner. The authors would also like to thank everyone at Kentucky Utilities E.W. Brown Station for serving as the host site and for their support of this project.

Funders	Funder number
Kentucky Department for Energy Development and Independence
East Kentucky Power Cooperative
Kentucky Utilities Company
Electric Power Research Institute, Louisville Gas & Electric
Duke Energy
Electric Power Research Institute, Louisville Gas & Electric
National Energy Technology Laboratory	DE-FE0007395

Keywords

CO capture
Heat stable salts
Heavy metals
Monoethanolamine
Small pilot CCS
Solvent degradation

ASJC Scopus subject areas

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

Access to Document

10.1016/j.ijggc.2017.07.004

Cite this

Thompson, J. G., Bhatnagar, S., Combs, M., Abad, K., Onneweer, F., Pelgen, J., Link, D., Figueroa, J., Nikolic, H., & Liu, K. (2017). Pilot testing of a heat integrated 0.7 MWe CO₂ capture system with two-stage air-stripping: Amine degradation and metal accumulation. International Journal of Greenhouse Gas Control, 64, 23-33. https://doi.org/10.1016/j.ijggc.2017.07.004

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