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Environmental impacts of a chemical looping combustion power plant

Environmental impacts of a chemical looping combustion power plant

Kategori
Tidsskriftspublikasjon
Sammendrag
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.
Oppdragsgiver
  • NILU - Norsk institutt for luftforskning / 114039
Språk
Engelsk
Forfatter(e)
  • Thorne Rebecca Jayne
  • Bouman Evert
  • Sundseth Kyrre
  • Sanchez Maria Asuncion Aranda
  • Czakiert Tomasz
  • Pacyna Jozef M
  • Pacyna Elisabeth G
  • Krauz Mariusz
  • Celińska Agnieszka
Institusjon(er)
  • NILU - Norsk institutt for luftforskning
  • SINTEF Industri / Bærekraftig energiteknologi
  • Institutt for energiteknikk
  • Politechnika Czestochowska
  • Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie
  • Polen
  • Narodowe Centrum Badań Jądrowych
År
2019
Publisert i
International Journal of Greenhouse Gas Control
ISSN
1750-5836
Årgang
86
Side(r)
101 - 111