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Large scale economics of a precipitating potassium carbonate CO 2 capture process for black coal power generation

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  • Clare Anderson
  • Minh Ho
  • Trent Harkin
  • Dianne Wiley
  • Barry Hooper

Abstract

Potassium carbonate (K 2 CO 3 ) solvents offer a lower cost and environmentally benign alternative to the traditional amine‐based solvents for post‐combustion capture of carbon dioxide (CO 2 ) from power station flue gases. The CO2CRC is developing a precipitating K 2 CO 3 process, termed UNO MK 3, which has the potential for significant cost reductions. The costs have been calculated based on capturing 90% of the CO 2 emissions from a new build black coal (Illinois No. 6) power station with a net output of 550 MW. With the UNO MK 3 process for CO 2 capture, the cost of electricity is predicted to be as low as $73/MWh and the cost of capture as low as $21/tonne of CO 2 avoided. The cost of electricity with the UNO MK 3 process represents as low as a 24% increase in the cost of electricity, which meets the target set by the US Department of Energy for capture technologies of adding less than 35% to the cost of electricity.

Suggested Citation

  • Clare Anderson & Minh Ho & Trent Harkin & Dianne Wiley & Barry Hooper, 2014. "Large scale economics of a precipitating potassium carbonate CO 2 capture process for black coal power generation," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 4(1), pages 8-19, February.
    • Handle: RePEc:wly:greenh:v:4:y:2014:i:1:p:8-19
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    File URL: http://hdl.handle.net/10.1002/ghg.1384
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    Cited by:

    1. Li, Long & Liu, Weizao & Qin, Zhifeng & Zhang, Guoquan & Yue, Hairong & Liang, Bin & Tang, Shengwei & Luo, Dongmei, 2021. "Research on integrated CO2 absorption-mineralization and regeneration of absorbent process," Energy, Elsevier, vol. 222(C).

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