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Dynamic simulation and investigation of the startup process of a postcombustion-capture plant
Citation Link: https://doi.org/10.15480/882.2182
Publikationstyp
Journal Article
Date Issued
2018-12-12
Sprache
English
Author(s)
Institut
TORE-DOI
TORE-URI
Volume
57
Issue
49
Start Page
16751
End Page
16762
Citation
Industrial and Engineering Chemistry Research 49 (57): 16751-16762 (2018-12-12)
Publisher DOI
Scopus ID
Publisher
American Chemical Society
Carbon capture is an important possibility to reduce carbon dioxide emissions. To be able to study the startup process of such an amine-scrubbing process, a startup model of a postcombustion-capture plant (pcc-plant) was developed in the Modelica language and validated with measured data from a pilot plant in Heilbronn, Germany. Afterward, the process was scaled up in the model to handle the entire flue-gas flow of a 875 MW coal-fired power plant, resulting in three parallel capture plants. A case study was carried out to investigate the startup process of the pcc-plant in detail, indicating that the startup time increased drastically when the plant is operating at partial load. The startup time for a cold start from the beginning of steam flow to a 90% carbon-capture rate is t = 1900 s at full load and t = 11 075 s at 15% load. The total heat demand in the reboiler of one pcc-plant is 326 GJ at full load and 370 GJ at 15% load. Other results show that the startup time increases linearly with increasing total amount of solvent and that the steam flow rate and solvent flow rate have a high impact on the startup time. © 2018 American Chemical Society.
DDC Class
600: Technik
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acs.iecr.8b03444.pdf
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1.98 MB
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