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Environmental impacts of a chemical looping combustion power plant

Environmental impacts of a chemical looping combustion power plant

Category
Journal publication
Abstract
Chemical Looping Combustion (CLC) is a promising CO2 capture option since it inherently separates CO2 from other flue components, theoretically with low energy penalty. Here, a Life Cycle Assessment model was developed of a theoretical hybrid CLC (HCLC) power plant facility utilising experimental data for CuO based oxygen carrier (OC) production and oxygen capacity. Power plant models with and without post-combustion CO2 capture, recognised as the most mature capture technology, acted as environmental performance targets. Results show that when OC is produced at lab-scale without optimisation, almost all (>99.9%) lifecycle impacts per kWh electricity from an HCLC plant derive from the specific OC material used, giving a total of ˜700 kg CO2eq/kWh. This is related to high electrical input required for OC processing, as well as high OC losses during production and from plant waste. Only when processing parameters are optimised and OC recycling from plant waste is implemented - reducing fresh OC needs – is the environmental impact lower than the conventional technologies studied (e.g. 0.2 kg CO2 eq/kWh vs. ˜0.3-1 kg CO2 eq/kWh, respectively). Further research should thus focus on identifying OCs that do not require energy intensive processing and can endure repeated cycles, allowing for recycling.
Client
  • NILU - Norsk institutt for luftforskning / 114039
Language
English
Author(s)
  • Thorne Rebecca Jayne
  • Bouman Evert
  • Sundseth Kyrre
  • Sanchez Maria Asuncion Aranda
  • Czakiert Tomasz
  • Pacyna Jozef M
  • Pacyna Elisabeth G
  • Krauz Mariusz
  • Celińska Agnieszka
Affiliation
  • NILU - Norwegian Institute for Air Research
  • SINTEF Industry / Sustainable Energy Technology
  • Institute for Energy Technology
  • Technical University of Czestochowa
  • AGH University of Science and Technology
  • Poland
  • National Centre for Nuclear Research
Year
2019
Published in
International Journal of Greenhouse Gas Control
ISSN
1750-5836
Volume
86
Page(s)
101 - 111