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Evaluation and comparison of the part load behaviour of the CO₂ capture technologies oxyfuel and post-combustion
Citation Link: https://doi.org/10.15480/882.2080
Publikationstyp
Conference Paper
Date Issued
2012-11
Sprache
English
Author(s)
Institut
TORE-DOI
TORE-URI
First published in
Number in series
37
Start Page
2420
End Page
2431
Citation
11th International Conference on Greenhouse Gas Control Technologies, GHGT 2012
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
Elsevier
The rising share of fluctuating renewable energies increasingly demand flexible and part load operation of fossil-fuelled power plants with and without CCS. In this work the part load behaviour of the Oxyfuel and the post-combustion CO₂capture processes are evaluated and compared. The net efficiency of the conventional hard-coal-fired power plant decreases from 45.2% at full load to 41.6% at 40% load. The net efficiency with post-combustion CO₂capture using 7 m MEA as solvent decreases to 34.7% at full load and 30.2% at 40% load. The Oxyfuel process reaches in turn a net efficiency of 36.6% at full load and 32.3% at 40% load and shows therefore a benefit of 1.9%-points at full load compared to the postcombustion CO₂capture with MEA. The efficiency advantage of the Oxyfuel process compared to the post-combustion CO₂capture process remains constant at part load.
Subjects
power plant
part load
off-design
Co2 capture
CCS
post-combustion
oxyfuel
DDC Class
600: Technik
620: Ingenieurwissenschaften
More Funding Information
Bundesministerium für Wirtschaft und Energie
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